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With References to the several Articks contributed by each .

Adams, Arthur, Esq., R.N., F.L.S. &c. page

Catalogue of the Species of Emarginula, a Genus of Gasteropodous MoUusca, belonging to the Family Fissurel-

lidae, in the Collection of H. Cuming, Esq 82

Catalogue of the Species oi Nassa, a Genus of Gasteropo- dous MoUusca, belonging to the Family Buccinidae, in the Collection of H. Cuming, Esq. ; with the Description of

some New Species 94

Descriptions of Fifty-two New Species of the Genus Mitra,

from the Cumingian Collection 132

Contributions towards a Monograph of the TrochidcB, a

Family of Gasteropodous MoUusca 150

A Monograph of Scutus, a Genus of Gasteropodous Mol-

lusca, belonging to the Family Fissurellidas 221

A Monograph of the Genus Monoptygma of Lea . . . 222 Descriptions of New Shells from the Cumingian CoUection 224

Note on the Genus Nernatura 225

A Monograph of the Recent Species of Rimula, a Genus of MoUusca, belonging to the Family Fissurellidae .... 226 A Monograph of Piincturella, a Genus of Gasteropodous

MoUusca, belonging to the Family Fissurellidae 227

Descriptions of Sixteen New Species oi Rissoina, a Genus of Marine Gasteropodous MoUusks, from the Cumingian

Collection 264

Descriptions of several New Species of Murex, Rissoina, Planaxis, and Eulima, from the Cumingian Collection . . 267



Adams, Arthur, Esq., R.N., F.L.S. &c. puge

Descriptions of New Species of Eulima, Triphoris, &c., from the Collection of H. Cuming, Esq 276

Bartlett, Mr. A. D.

On some Bones of Didus 280

Bonaparte, Prince Charles Lucien.

On the largest known Species of Phaleridine Bird . . . 201

Bonyan, Dr. G. R.

Notes on the Raptorial Birds of British Guiana .... 53

Bowerbank, J. S., Esq., F.R.S. &c.

On the Pterodaclyles of the Chalk Formation .... 14

Davy, Dr., F.R.S. &c.

Observations on the Eye of the Mole. (In a Letter to W. Spence, Esq., F.R.S.) 129

DiLLWYN, L. Llewellyn, Esq., F.G.S. &c.

On an undescribed Species of iKfejraporfms 118

DuGuiD, Dr.

Letter on the Deal Fish. (Communicated by Mr. Yarrell.) 1J6

Forbes, Prof. Edward, F.R.S. &c.

On a Species of JEquorea inhabiting the British Seas . . 272

Gaskoin, J. S., Esq.

Descriptions of Twenty Species of Columbellcc, and One Species of Cypraa 2

Gould, John, Esq., F.R.S. &c.

On a new and most remarkable form in Ornithology . . 1 Letter from J. W. G. Spicer, Esq., concerning Two Hybrid

Birds 61

On a New Species of Musophaga 93

On a New Species of the Genus iHfow^rm^iZ/a . . . .114

On some New Species of Trochilidce 115

Remarks on the Genus Hapalotis 126

Descriptions of Two New Species of Mammalia, of the

Genus Antechinus 284

Descriptions of a New Species of Ptilotis, and a New Spe- cies of Eopsaltria 285



Gray, J. E., Esq., F.R.S. &c. pctye

Descriptions of Two New Genera and some New Species of ScutellidcB and Echinolampidce, in the Collection of the British Museum 34-

Description of a New Genus and Family of Cyclosaurian Lizards from Para 38

Description of a New Species of Bulimus from Callao, collected by Erneste Denicke 92

Description of a New Genus of Gorgoniadcs 124

Description of a New Genus of Bivalve Shells, and a Sea Egg, from New Zealand 125

Notice of Two Viverridce from Ceylon, lately living in the Gardens 131

On a New Genus of Anoiniada, in the Collection of Mr. Cuming 197

Description of a New Form of Lamprey from Australia, with a Synopsis of the Family 235

Hanley, H., Serjeant-Major 1st Life Guards.

Observations on the Breeding of the Nightingale in Cap- tivity 196

Harcourt, Edward Vernon, Esq.

Notice of the Birds of Madeira. (In a Letter addressed to the Secretary.) 141

Herrmannsen, Dr., of Kiel.

On some Genera of Shells, established in 1807 by the late H. F. Link 228

Kaup, Dr.

Descriptions of some New Birds in the Museum of the Earl of Derby 39

Mack, Mr.

Remarks on the fact of Black Eggs being laid by a White Duck. (Communicated by Mr. Oswald.) 192

Metcalfe, W., Esq.

An Enumeration of Species of recent Shells, received by W. J. Hamilton, Esq., from Borneo, in November 1850, with Descriptions of the New Species 70


Newman, Edward, Esq., F.L.S. &c. page

A few words on the Synonymy of Distichocera, a Genus of Longicorn Coleoptera from New Holland, with Characters of Three Species supposed to be undescribed 75

Nicholson, Dr., H.E.I.C. Medical Service.

Note on a New Species of Francolin . 128

Notes on an undescribed Species of Tailor-bird .... 194;

Notes on a New Species oi Artamus from India .... 195

Owen, Professor, F.R.S. &c.

On a New Species of Pterodactyle {Pterodactylus com- pressirostris, Owen) from the Chalk ; with some Remarks on the Nomenclature of the previously described Species . . 21

On the Anatomy of the Wart-Hog (Pkacoc/werus Pallasii, Van der Hoeven) 63

On the Skeleton of Troglodytes Gorilla (which will be published in the Transactions) 263

On the Capacity of the Cranium in the Negro, the Orang, and the Gorilla (which will be published in the Transac- tions) 264

Pfeiffer, Dr. L.

Descriptions of New Land Shells from the Collection of H. Cuming, Esq 147

Descriptions of Forty-three New Species of Cyclostomacea, from the Collection of H. Cuming, Esq 242

Descriptions of Fifty-four New Species of Helicea, from the Collection of H. Cuming, Esq 252

Philippi, Dr.

Descriptiones Naticarum quarundam novarum ex collec- tione Cumingiana 233

Reeve, Lovell, Esq., F.L.S. &c.

Description of a New Species of JBulimus from Australia 198

ScLATER, P. L., Esq., B.A.

On Two New Species of Birds of the Genus TcBnioptera . 193

Tomes, John, Esq., F.R.S. &c.

On the Structure of the Teeth of the American and Indian Tapirs J 21


Turner, H. N., Jun., Esq. jxjg^

Note on the Suborbital Gland of the Nylghau . . . .116 On the Change of Colour in a Chamaeleon {Chamceleo

rmlgaris) 203

On the Arrangement of the Edentate Mammalia . . . 205

Westvvood, J. O., Esq., F.L.S. &c.

Observations on the Dentition of the Tiger Beetles . .198

Yarrell, W., Esq., F.L.S. &c.

Letter on the Deal-fish, from Dr. Duguid to Dr. Barker . 116




*" ^ Page

XXIX. Molar Tooth of the American Tapir 121

XXX. Herpestes Smithii, Gray 131

XXX J. Cynictis Maccarthia, Gray 131


XXXV. Balecniceps rex, Gould ]

XXXVI. Saurophagus Derbianus, Kaup 39

XXXVII. Psaris Fraserii S , Kaup 3.9

XXXVIII. ? , Kaup '.'.'.".'.'.".'.'.'.'. ". '. ! 39

XXXIX. Megapodius Cumingii, Dillwyn \\s

XL. Francolinus yemensis, Nicholson 128

XLI. TcBTiioptera erythropygia, Sclater 193

XLII. striaticollis, Sclater 193

XLIII. Artamus cucullatus, Nicholson 195

XLIV. Sagmatorrhina Lathami, Bonap 201

XLV. Bones of Didus 280


IV. Petromyzon marinus, &c. &c. &c 235

V. Geotria Australis 2.S5


IV. Pterodactylus longirostris, Bowerbank 14

VI. Anadia ocellata, Emminia olivacea, Iphisa elegans. Gray 38


XII. Bulimus Maconelli, Reeve 19;.;


XX. DisHchocera Kirbyi S , Newman 79


Ill / Gonigoria clavata, ~\

I Nidalia occidentalis, J ^^^ ^-"^

IV. jEquorea Forskalea oj-J

Proc Z 5 Aves.XXXY.

,1 Wcilf, Lil1i

M X N Hanhart, In





January 14, 1851.

Prof. Owen, F.R.S., Vice President, in the Chair.

The foUowiDg papers were read :

1. On a new and most remarkable form in Ornithology. By John Gould, F.R.S. etc.

(Aves, PI. XXXV.)

I have the pleasure of introducing to the notice of the Society on the present occasion the most extraordinary bird I have seen for many years, and which forms part of a collection made on the banks of the upper part of the White Nile, by Mansfield Parkyns, Esq., of Not- tingham. For this bird I propose the generic name of Bal^ni- ceps, with the following characters :

Bill enormously robust, equal in breadth and depth ; sides of the upper mandible much swollen ; culmen slightly elevated, depressed in the middle of its length, and terminating at the point in a very powerful hook ; tomise sharp, turning inwards and very convex ; lower mandible very powerful, with a sharp concave cutting edge and a truncated tip ; nostrils scarcely perceptible, and placed in a narrow slit at the base of the bill, close to the culmen ; orbits denuded ; head very large ; occiput slightly crested ; wings very powerful, the third, fourth and fifth feathers the longest ; tail of moderate length and square in form ; plumage soft and yielding ; skin of the throat loose, and capable of dilatation into an extensive pouch ; tibise and tarsi lengthened, the latter a fourth shorter than the former ; the lower third of the tibiae denuded ; toes four in number, all extremely long, and without the slightest vestige of interdigital membrane ; hind-toe on the same plane as the anterior ones and directed inwards ; tibiae and tarsi reticulated, the reticulations becoming much smaller

No. CCXIX. Proceedings of the Zoological Society.

on the joints ; upper surface of the toes scutellated ; nails powerful, and not much curved ; the nail of the centre toe impectinated.

Bal^niceps Rex.

Bill pale yellow, becoming horn-colour on the culmen and tip, and blotched with dark brown ; orbits pale yellow ; head and neck slaty grey, darkest on the crown ; chest ornamented with lanceolate feathers of a similar colour, with a dark stripe down the centre ; abdomen, flanks, thighs and under tail-coverts very pale grey ; upper surface generally very dark grey, most of the feathers margined with light grey ; primaries, secondaries and tail blackish grey ; rump and upper tail-coverts light grey ; legs greyish black.

Total length, from the tip of the bill to the extremity of the tail, 52 inches ; from the tip of the bill to the end of the centre toe, 67 ; bill, from the gape to the tip, 9 ; depth of the bill, 4f ; breadth, 4 ; wing, 27 ; tail, 12 ; tibiae, 13 ; tarsi, 10 ; middle toe and nail, 7 ; ex- ternal toe and nail, 6^; internal toe and nail, 5^; hind toe and nail, 4.

Hab. The upper part of the White Nile, in Eastern Africa.

Remark. This is evidently the Grallatorial type of the Feleeani- dtv; at least such is the conclusion to which I am directed after a care- ful examination and comparison of it with Pelecanvs, Grus, Ardea, and Cancroma, to none of which genera is it so nearly alhed, except in general contour, as to Pelecanus. Perhaps the most singular feature connected with this form is the entire absence of interdigital mem- brane, a character so conspicuous in the Storks, Herons, and the Boat- bill, which latter bird is as nearly allied to Nycticorax as the present bird is to Pelecanus. Both Cancroma and Nycticorax have the nail of the centre toe strongly pectinated, which character is not found in Pelecanus nor in Balceniceps.

2. Descriptions of twenty species of Columbell^, and ONE species of Cypr^a. By J. S. Gaskoin.

1. CoLUMBELLA TENUIS. Tcsto pyramiduUs, subventricosa, Icevis, tenuis, albicans, maculis irregularibus fuscis magnis longitudinaliter dispositis ; anfractibus octo, duobus anticis gibbosis ; spiru subelongatd, acuminatd ; aperturd lata, antice divergente, postice acuminatd, labia externa tenui, internoque edentula, varice externa subelevato ; striis tenuibus ab varice antice coiitinuis ; canali brevi. Shell pyramidal, rather ventricose, smooth, thin, of a dull whitish colour, with large distant dark brown markings extending, irregu- larly, in width and form longitudinally over the volutions, which are eight in number, the two anterior being gibbous, the others proceed to form an acuminated apex ; the spire constitutes more than one- half the length of the shell * ; aperture wide, diverging anteriorly,

* In estimating the proportionate length of the spire of the shell, I take the measurement from the termination of the last volution at its junction to form the posterior point of the aperture ; and the width, at the largest diameter of the an- terior whorl.

acuminated posteriorly ; outer lip curved outwards, thin, without deu- ticulations, as is also the inner lip, which is shining, and within of the same colour as the shell ; a slightly elevated varix terminates the inner edge of the aperture, from which fine strise pass obliquely for- ward over the dorsum to the anterior portion of the outer lip ; chan- nel short, slightly curved.

Length, -^^ of an inch ; vddth, -^^ of an inch.

Hab. '! Cab. Gaskoin, specimen unicum.

2. CoLUMBELLA ALBiNODULOSA. Testo oblongo-ovattt, palli- disshne luteo-fulva, fasciis anyustis interrvptis tribiis bninneis; spiru acuminata, anfractibus septem ; nodulis latis prominenti- bus subdistantibus albi-coronatis ; aperturd oblongd subqua- dratdalbd; labio externo crasso, recto, submarginato, intusden- ticidato ; dentibus jjosticis majoribus, labio interna dentibus irregidaribus subvaricosis ; canali recto latiiiscido subelongato. Shell oblong-ovate, of a very light yellowish brown colour, with three interrupted or dotted dark brown narrow bands, the first ex- tending from the anterior point of the outer lip to the centre of the aperture, the second from the anterior third of the margin of the outer lip to the posterior part of the aperture, and the third from the posterior third of the margin of the outer lip along the anterior portion of the volutions spirally to the apex ; broad nodules or tu- bercles, moderately prominent and rather distant, exist from the posterior portion of the outer lip over the dorsum or shoulder, and continuously on the centres of the whorls, and as the whorls become narrow, occupy them longitucUnally on to the point of the spire, each nodule being crowned with an opake white blotch ; opake white irre- gular markings are also on the anterior volution ; spire acuminated, constituting rather less than one half the length of the shell ; seven volutions, rather convex ; aperture straight, rather wide ; outer lip sharp at its edge, straight, curving suddenly on forming the channel ; just within the lip is a row of about eight rather prominent teeth, the posterior being the larger ; inner lip slightly denticulated with about six irregular varices, with a slight sharp prominence at its margin, the large whorl ribbed with fine striae, most prominent anteriorly ; channel straight, rather wide, slightly elongated and recurved. Length, -.^ of an inch ; width, ^^ of an inch. Hab. 1 Cab. Gaskoin.

3. CoLUMBELLA iNTERRUPTA. Tcstu oblongo-ovata, albicans, fasciis duabus interrvptis latis rvfescenti-brunneis ; fascia an- ticd pallidiore ; spird acuminata, anfractibus septem vel acta; aperturd latiiisculd jircecipue ad partem posticam ; labio ex- terno crasso margine acuta, intus denticulato, denticulis qua- tuor vel quinque; labio interna cum margine externo denticu- lato, aurantiaco ; testa extus cancellatd striis spiralibus vali- dis, longitudinalibus temiibus ; peritremate pallide aurantiaco, postice subobtuso angulari ; canali breviusculo latiusculo.

Shell oblong-ovate, of a dull greyish white colour, with two distinct.

strongly marked, interrupted, broad, dark reddish brown bands, the anterior being the less deeply coloured, the markings being rather crescentic, with the horns pointing towards the aperture becoming more arrow-shaped advancing onwards ; the anterior band extends from the fore part of the outer lip to the middle of the inner side of the aperture, the second from the posterior part of the edge of the outer lip over the dorsum at the shoulder, and spirally on the centres of the volutions to the apex ; at the superior portion on the aperture side of each marking is an opake white colouring ; spire acuminated, seven to eight whorls ; at the suture, spirally on to the apex, is a fine whitish varix having interrupted brovra markings along its entire course ; aperture rather straight and broad, widening posteriorly ; outer lip thick, sharp at its edge, orange-coloured at its inner border, where there are four or five slight denticulations ; inner lip has a finely denticulated ridge at its outer edge of an orange colour, within it is an angular projection forming the commencement of the chan- nel ; the whole external shell is cancellated, the transverse striae being much stronger than the longitudinal, and especially anteriorly ; peri- treme of a light orange colour, rather obtusely angular posteriorly ; channel rather short and moderately wide.

Length -^^ of an inch ; width, ^L. of an inch.

Hab. ? Cab. Gaskoin.

4. CoLXTMBELLA LEUCOSTOMA. Testtt ovata, albicans, nitens, postice fascid laid brunned spirali ornata; apice albicante di- midio antico anfractfls ultimi albido ; spird acuminata, anfrac- tibus septem ; a'perturd guldque albis latiusculis, illd postich subquad7-atd, labia externa intus subdenticulata, dentibus sex posticis maja7'ibus ; canali brevi latiusculo. Shell ovate, shining, of a whitish colour, having a broad brown band occupying the posterior half of the anterior volution and the entire of the sixth, fifth and fourth, except at their posterior edge, which is white, the brovni band terminating in an undefined line near the suture ; the three apicine whorls are white, with very fine lightly coloured linear markings, and in like manner is the white anterior half of the last whorl finely but irregularly streaked ; spire acumi- nated, seven volutions, which constitute the greater half of the length of the shell ; aperture white, as is also the interior, rather broad, somewhat square posteriorly ; outer lip gradually curved inwards, having within it about six slight denticulations, the posterior being the larger ; inner lip smooth, spiral ; a few fine striae extend obliquely forwards over the dorsum of the channel from the slight varix at its outer edge ; channel short, rather broad.

Length, ^^-^ of an inch ; vddth, y^^ of an inch. Uab. ? Cab. Gaskoin.

5. CoLUMBELLA Pacifica. Testa oblongo-ovata, lacteo-opaca, maculis irregularibus distantibus rufescenti-brunneis ornata ; intus alba; spird acuminatd, anfractibus canvexis septem vel acta postice abtusissimh coronatis ; aperturd lata rectiusculd ;

labii externi maryine tenui intus edentulo ; labio interna Icevi externe margine tenui; anfractu ultimo antic^ vulde striata, striis tenuiaribus longitudinaliter decussautibus ; canali brevi, lata, subrecurva.

Shell oblong-ovate, of an opake milk-white colour, distantly macu- lated with dark reddish brown irregular markings, internally white ; spire acuminated, constituting the greater half of the length of the shell ; volutions seven to eight, convex, their posterior margin gene- rally very obtusely and distantly coronated ; aperture wide, rather straight ; outer lip thin at the edge, even, no denticulation within, margiuated ; inner lip even, having a very slight straight edge or varix externally, from which rather strong striations pass over the anterior of the dorsum to the outer lip, and very much finer strise longitudi- nally pervade the same ; channel short and Avide, very slightly curved.

This shell diifers from Columbella Miser, Sowerby, in the absence of denticulation, in the last volution being much more gibbous, the aperture much wider, the channel decided, the spire more pyramidal, and much less coloration and markings.

Length, ^-^ of an inch ; width, -^-^ of an inch.

Hab. Sandwich Islands. Cab. Gaskoin.

6. Columbella varicosa. Testa oblango-ovata, nitens, crassa, albicans, calare nigricanti-brunneo irregulariter induta ; mar- ginibus pasticis anfractuum albicantibus ; spird acuminatd, an- fractibus septem vel acta subventricosis varicasis validis protni- nentibus subobliquis instructis ; parte anticd ultimi anfractus Icevigatd, antice supra canalem transverse striata ; aperturd ab- longd subquadratd rectd intus cceridescente, labia externa recto, marginato postice incisurd magnd instructa, intus denticulato denticulis pasticis validiusculis, labio interno Icevi margine ele- vato tenui ; canali brevi latiuscido.

Shell oblong-ovate, shining, thick, strong, of a white colour, gene- rally irregularly and greatly covered, more or less intensely, with an almost black-brown coloration, excepting the posterior edges of the whorls, where it remains nearly white ; spire acimiinated, constituting one half the -length of the shell, has seven to eight volutions, rather convex, slightly diagonal ; strong, prominent, somewhat distant varices exist on the posterior margin of the last whorl, the anterior portion of which have many strise passing transversely and obliquely for- wards from the columellar edge of the aperture ; aperture oblong, rather square and straight, internally of a bluish white colour ; outer lip straight, marginated, having a rather large notch at the junction with the body of the shell, and having anteriorly to this notch, within, about five or six slight denticulations, the posterior being the larger ; inner lip smooth, vsdthout denticulation, edge slightly elevated and thin ; channel short, rather broad.

Length, -^^ of an inch ; width, -^-^ of an inch.

Hab. Peyta, Peru. Cab. Cuming, Gaskoin.

7. Columbella Australis. Testa oblongo-ovalu, albicans.

maculis parvis irregularibus brunneis incequalibus ornata, ma- joribus saturatioribusque apud maryinem posticum anfractuum positis ; spird acuminatd, anfractibus octo subyibbosis, apice al- bicante ; aperturd latiusculd intus ccerulescente, labio externa recurvo ad canalem converyente, intus denticulis septem ad octo subprominentibus subdistantibus, labio interno Icevi antice anyu- Kfero ; canali latiusculo brevi recurvo, anfractu ultimo antice transversim striata ; peritremate postice angulari. Shell obloug-ovate, of a whitish colour, greatly covered with small, irregular, dark brown, conjoined specklings, of unequal intensity in coloration, the larger and darker markings being at the edges of the whorls ; three rather narrow interrupted bands traverse the last whorl, the posterior one proceeding along the anterior margin of the volu- tions ; spire acuminated, being rather the greater half-length of the shell ; volutions eight, slightly gibbous, the four apicine white ; aper- ture rather broad, internally of a bright pinkish blue-white colour, slightly iridescent ; outer lip a little curved, converging at the chan- nel ; within are seven or eight irregular, slight elevations or denticu- lations, rather distant, at the anterior portion of the edge are several fine denticulations ; inner lip smooth, with a very slight thin varix at the anterior part ; an obtuse angularity forms the commencement of the channel ; chaimel rather wide, short, and a series of rather fine parallel striae traverse the anterior part of the last whorl ; peritreme angular posteriorly.

Length, .^ of an inch ; width, -^ of an inch, Hab. Sydney. Cab. Gaskoin, Cuming.

8. CoLUMBELLA CANCELLATA. Tcsta ovata, palUde aurantiaco- brunnea ; apice roseo, superficie omnino canceUatd, serie posticd yranulorum majore; spird acuminatd anfractibus septem; aper- turd latiusculd brevique, labio externo subrecurvo converyente, intus denticulis quatuor vel quinque subprominentibus, labio in- terno IcBvi ; canali latiusculo, brevi, peritremate posticd obtuse angulari.

Shell ovate, of an uniform light orange-brown colour, except the apex, which is pink, deeply cancellated over its entire surface, having the posterior line of nodules larger than the others; spire acuminated, and forms rather more than half the length of the shell ; volutions seven ; aperture rather broad and short ; outer lip slightly curved, converging towards the channel ; vnthin it are four or five rather prominent denticulations; inner lip smooth, very obtusely nodulated at its exterior slightly elevated edge ; channel moderately broad, short, curved towards the columella ; peritreme obtusely an- gular posteriorly.

Length, -^^ of an inch ; width, y\^ of an inch.

Hab. West Lidies. Cab. Gaskoin.

9. CoLUMBELLA PULLA. Tcsta oblonyo-ovatu, saturate brun- nea ; parte untied ultimi anfractus. columelldque albicantibus ; spird acuminatd, anfractibus octo vel novem, convexinsculis,

suturd Icevi ; aperturd latiusculd j)Ostic^ acuminatd, labia ex- terno tenui Icevi, intus subdenticulato, saturate hrunneo, lahio interna Iceviyate subdenticulata, antice subalbida, margine in- terna varicem rectum efforinante, parte untied testa trans- versim striatd ; canali mediocri, recto. Shell oblong-ovate, of an uniform dull, very dark brown colour, and also within, excepting the columella and edge of the outer lip, which are white ; spire acuminated ; volutions eight or nine, slightly convex, even at the suture ; aperture rather acuminated posteriorly ; outer lip thin, smooth, internally slightly denticulated ; inner lip shining, with slightly elevated nodules or teeth, and its edge forms a fine straight varix, from which a few thin strise pass over the dorsum of the channel ; channel moderately wide and straight.

Length, -f^ of an inch ; width, -^-^ of an inch ; length of spire, Y^'V of ^^ iuch ; length of last whorl, -j^ of an inch. Hab. 1 Cab. Gaskoin.

10. CoLTjMBELLA INTEXTA. Tcstu oMongu, angustu, Icevis, al- bicans, strigis punctidisque irregidaribus saturate brunneis ornata ; spird acuminatd, anfractibus novemvel decern; margi- nibus pasticis anfractuum brunneo maculatis, ultima anfractu antice similariter colarata ; suturd elevatd; aperturd brevius- culd angustdque, labia externa arcuata, ad marginem acutius- culo, extus crassiuscido, ad canalem convergente, labia interna ad marginem subvaricoso, Icevi, edentida; canali breviuscula, angustata, extus transversim striata.

Shell elongated, narrow, smooth, of a dull whitish colour, having dark brown irregular dottings and streaks pervading the entire sur- face of the shell ; irregular, rather large and distant, similarly coloured spots are on the posterior margin of the volutions to the apex, aiid a band, similarly indicated at the anterior part of the last whorl ; spire acuminated, constituting about two-thirds of the length of the shell ; volutions nine to ten, suture elevated ; aperture rather short and nar- row ; outer hp arched, sharp at its edge, thickened externally, con- verging towards the channel ; inner lip slightly ridged at its edge, smooth, without denticulations ; channel rather short, somewhat nar- row, externally transversely striated.

Length, -^-^ of an inch ; width, -j^ of an inch.

Hab. Australia. Cab. Cuming, Gaskoin.

11. CoLUMBELLA CONTAMINATA. Testtt oblonga, IcRvis, saturate brunnea, intus subalbida, lined suturali albicante subinterruptd ; spird acuminatd dimidium testce superante, anfractibus acta vel navem canvexiusculis ; aperturd pastich latd, antich angustiare, margine externa lata, crassa, intus denticulis linearibus sex vel septem ; margine interna tenui, albicante, intus denticidis pro- minentibus confertis albicantibus sex supra columellam canti- nuis, calumelld interstitiisque rufescenti-brunneis ; canali pra- minente angusta subrecurvo, margine interna vialaceo, parte ex- ternd transversim striatd.

Shell oblong, smooth, of au uniform light brown colour, whitish within ; a narrow interrupted white band proceeds from the middle of the margin of the outer lip and continues along the posterior edge of the volutions to the apex ; a less defined band traverses the dor- sum more anteriorly, and terminates at the middle of the inner side of the aperture ; spire acuminated, comprising more than one half the length of the shell ; volutions eight to nine, slightly convex, su- ture a little elevated ; aperture rather wide, shining, broader poste- riorly ; outer lip whitish, and thick externally, edge sharp, violaceous for a little distance within, with six or seven linear denticulations ; inner lip, a fine whitish varix extends from the curve of the aper- ture to the anterior point of the channel ; within this varix, at its centre, are five or six denticulations, closely set, parallel, prominent, proceeding over the columella, whitish at their edges, the inter- stices and the portion exterior to them being of a reddish brown colour; channel projecting, narrow, slightly recurved, with a dark violaceous colour vdthin ; a number of rather strong strife pass from the inner side of the aperture to the edge of the anterior half of the outer lip.

Length, y^^ of an inch ; width, ^ of au inch.

Hah. 1 Cab. Gaskoin.

I have seen but one of this characteristic species : the aperture is allied in form to that of Colmnhella Puella, Sowerby. It may be convenient to readers to state, that the species Col. Puella is by acci- dent, in the index of the 'Thesaurus Conchyl.' of Sowerby, juu., entered as Col. Nympha.

12. CoLUMBELLA Marquesa. Testa ohlongo-ovata, albicans; anfractihns sex vel septeni ; 4 vel 5 posticis roseis, longitudi- naliter striatis, anfractihns tribus anticis Icevibvs spiraliter rvfescenti-brunneo lineatis ; spird acuminata, dimidium testee teqvante ; aperturu mediocri rectiusculd ; labii externi margine tenia postice marginato, extus incrassato, edentulo, lahio colu- mellari Icevi nitido, margine crassiusculo elevato ; canali extus transversim striato, brevi. Varietas hujus testes major differt pro colore. Shell oblong-ovate, of a dull white colour ; spire acuminated, form- ing about one-half the length of the shell ; volutions six to seven, which, vnth the last volution, the columellar side of the shell forms an even convexity ; the first four or five whorls are of a rose or bluish-pink colour, minutely longitudinally striated ; the others are smooth, with somewhat distant fine brown lines, seven, eight, or so in number, passing spirally and continuously from just within the outer lip along the three last whorls, to the commencement of the pink striated volutions ; aperture moderately wide and long, rather straight ; outer lip sharp at its edge, forming a notch at its junction with its next whorl, thickened externally, without denticulation ; inner lip also edentulate, smooth, shining, externally forming a rather thick, slightly elevated varix, which extends to the extremity of the channel, and from the whole length of this varix fine striae pass over


the dorsum of the channel to the anterior portion of the outer lip ; channel short.

A variety of this species is rather larger in size, with the markings along the posterior edge of the three last whorls in somewhat distant, brown, square spots, from which rather distant undulating lines of a lighter colour pass longitudinally over the volutions, while in some specimens the colour is more en masse on the last whorl with small circular spots in it, showing the colour of the shell.

Length, -^^^ of an inch ; wddth, ^LS-. of an inch.

Had. Marquesas. Cab. Gaskoin, Gubba.

13. CoLTJMBELLA AusTRiNA. Testu ohlongo-ovttta, Icevis, nitens, albicans, punctulis distajitibus pallidissime hrunneis, fascidqne untied laid hrnnned ornata ; spird acuminata, anfractibus sep- tem vel octo, convexiusculis ; suturd distinctd ; aperturd latiii.s- culd, labio externa postice intus emarginato ; margine acutius- culo versus canalem incurvo, intus denticulis prominentibus octo vel novem ; labio columellari recto, nitido, denticulis septem an- tice positis, margine externo subelevato ; peritremate albicante, aperturd intus violaceo-brunned ; canali subprominente, latius- culo, dorso canalis transve7'sim striata.

Shell oblong-ovate, of a dull white colour, smooth and shining, with light brown coloration, or interrupted from the anterior side of the volutions of the spire, and extending, more or less faintly, over them ; a much darker broad band occupies three-fourths, at its centre, of the last whorl, the colour gradually softening into the whitish an- terior, posterior, and outer portions of the whorl ; spire acuminated, constituting less than one half the length of the shell ; volutions seven to eight, rather convex, slightly ridged at the suture ; aperture rather long, and moderately wide and straight ; outer lip forms a broad notch at its juncture with the body of the shell, edge sharp, curving much towards the channel, externally thickened ; within are eight or nine rather prominent denticulations, diminishmg in size from their com- mencement at the anterior edge of the notch ; inner lip straight, smooth and shining, with a row of about seven small, even, round teeth, which extend over the columella, and a very slightly raised sharp varix forms the outer edge of the aperture proceeding to the end of the channel ; from this varix fine striae pass over the dorsum of the channel to the anterior part of the outer lip ; peritreme whitish, the interior of the shell of a rather violaceous colour ; channel slightly projecting, moderately wide.

Length, -^^ of an inch ; width, -^^-^ of an inch.

Hab. Australia. Cab. Cuming, Gaskoin.

14. CoLUMBELLA BACCATA. Test a oblongo-ovata, albicans, fas- ciis tribus interruptis saturate rufescenti-brunneis, jmnctulis opacis albicantibus rotundis per lineas obliquas vel longitudi- nal es positis ; spird acutninatd, anfractibus septem, quorum tri- bus anticis leeinbus, posticis obtuse longitudinaliter striatis ; apice albicante ; aperturd latiusculd intus albicante fasciis


brunneis tribus conspicuis ; labio externo crassiusculo denticulis panels intus prope centrum positis ; labio interno recto, ad marginem externum varice ])rominente instructo ; canali lato, obtiiso.

Shell oblong-ovate, of a dull white colour, with three dark reddish browu interrupted bands traversing the last whorl, the anterior ex- tending from the fore-part of the outer lip to that of the aperture, the second continuing along the anterior margin of the volutions to near the apex, and the third passing similarly on their posterior mar- gin to the same extent ; opake, whitish, distinct, small round spots pervade the four anterior volutions, being in rows, obliquely or longi- tudinally placed ; shell, within of a dull white colour, the three bands being conspicuous ; spire acuminated ; volutions seven, the three an- terior smooth, the posterior obtusely striated longitudinally, apex whitish ; aperture rather wide and straight ; outer lip somewhat thick, having a few (one or two) rather prominent denticulations vnthin the edge, about the centre ; inner lip straight, with a rather strong varix at its outer edge ; channel wide and obtuse ; a few striae pass obliquely over the anterior part of the columellar side of the dorsum.

Length, ^^ of an inch ; vddth, J^ of an inch.

Hab. 1 Cab. Gaskoin.

15. CoLTJMBELLA SAGiTTA. Tcsta oblonga, subcylindracea, an- gustata, Icevis, nitens, semipellucidula, pallidissime brunnea ; fasciis duabus angustis interritptis albidi-opacis, ab postico margins anfractuum ad apicem continuis ; spird acuminatd, 3-5 longitudinis testa ; anfractibus octo ; aperturd brevi, laid; labio externo crassiusculo extus margine albini-opaco, versus canalem incurvato, labio interno Icevi nitido ; dorso antici transversim striato; canali longiusculo, latiusculo; peritremate subquadrangulo. Shell oblong, subcylindrical, narrow, smooth, shining, semitrans- parent, of an extremely pale brown colour, with a very narrow inter- rupted opake white band arising from about the middle of the outer lip, and continuing along the anterior edge of the whorls to the apex ; the markings forming this band are pointed, the points being toward the outer lip ; large white opake markings occupy the entire poste- rior margin of the volutions, conjoined at the suture by broad bases, and, diminishing pyramidally to a point, extend across the volutions, and between each pyramidal mark, fitting the interstices, are dark, reddish-brown, barb-shaped colorations ; spire acuminated, constitu- ting three-fifths the length of the shell ; volutions eight, very slightly convex ; aperture short, rather wide ; outer lip moderately thick, much incurvated to form the channel, vrith a whitish opake strong margin externally, edentulous ; inner lip even, and shining, with a slight varix along its outer border, from which several rather promi- nent striae traverse the anterior part of the dorsum to the fore part of the outer lip ; the columella terminates angularly at the beginning of


the channel ; channel rather long, moderately wide ; peritreme sub- quadrangular.

Length, ^^ of an inch ; width, ^'^ of an inch.

Hab. Africa ; West Indies. Cab. Metcalfe, Cuming, Gaskoin, &c.

IG. CoLUMBELLA CONSPERSA. Tesftt oblongo-ovatu, pyrami- dalis, pallide hrunnea, maculis anticis, albi-opacis, irreyulari- bus ; fascits tribus albi-opacis, brunneo interrvptis, duahus posticis ab aperturd ad apicem continvis ; spird acuminata an- fractibiis novem vel decern convexiuscidis ; ajierturu recta, latius- culd ; labio externa ad marginem acuta, margine externa lata prominente, intus denticulis quatuor quinque vel sex parvis ; labio interna Icevi, nitido, intus varice parvo denticulata, extus varice subpraminente ad laterem canalis extenso ; striis tenui- bus per anticam partem dorsi cantinuis ; canali longiusculo, an- gusta, leviter recurva ; peritremate subqxiadrangida, lilacina. Shell oblong-ovate, pyramidal, of a dull pale-brown colour, with opake white, irregular markings on the anterior half of the last whorl ; three opake white bands ; the two anterior, interrupted and edged posteriorly with dark brown coloration, traverse the last whorl ; the second, arising from the middle of the outer lip in narrow streaks, continues along the anterior edge of the volutions close to the suture, on to the apex ; the third arises at the posterior part of the outer lip, sometimes in conjoined nodules, edged anteriorly and interrupted by a dark brown colour, passes over the dorsum and continues in irregularly broad, even streaks on the posterior margin of the whorls on to the apex. [These characters are marked in fine specimens, but are sometimes rendered less conspicuous by irregularity in the opake white deposition.] Spire acuminated, constituting rather more than one-half the length of the shell ; volutions nine to ten, slightly convex ; aperture straight, moderately wide ; outer lip sharp at the edge, converges abruptly to form the channel, a broad promi- nent margin externally, within are four, five, or six denticulations ; inner lip smooth and shining, within is a little ridge forming about six nodules or teeth, and at the outer edge is a rather strong varix extending on to the side of the channel, and from the outer side of which varix fine striae traverse the anterior portion of the dorsum ; channel rather long and narrow, slightly recurved ; peritreme rather quadrangular, and of a lilac colour.

Length, ^^ of an inch ; width, ^^^ of an inch. Hab. ? Cab. Gaskoin.

1 7. CoLUMBELLA FORMOSA. Tcsta oMongo-ovata, Icsvis, nitida, colore Jlari-lactea induta ; fasciis duahus maculis albicantibus brunneisque interrvptis ; spird acuminatd, ad dimidium longi- tudinis testes cequali ; anfractibus septeni vel octo convexiuscu- lis, suturd subpraminente ; aperturd latiusculd et breviusculd ; labia externa Icevi tenui, interna Itevi ; canali lata.

Shell oblong-ovate, smooth and shining, of a light delicate cream colour, with two interrupted bands of opake white and brown mark-


ings mingled together, the first arismg from the anterior point of the outer lip, and proceeding to the inner edge of the aperture ; the second from the middle of the outer lip, and extending along the anterior mar- gin of the volutions to the apex ; spire acuminated, of half the length of the shell ; volutions seven to eight, rather convex, suture slightly prominent ; aperture somewhat wide and short ; outer lip smooth and thin ; inner lip even and also edentulous, no varix at its inner border ; channel short and wide ; a few striae traverse the anterior part of the dorsum.

Length, ^^ of an inch ; width, ^^ of an inch.

Hab. ? Cab. Gaskom.

18. CoLUMBELi.A HiRUNDO. Testa ovato-pyramidalis, lavis, nitens, pallida, strigis punctisque brimneis leviter maculata ; spird mucronatd, dimidium longitudinis testes cequante ; an- fractibus novem vel decern planis ; aperturu latiusculd ; labio externa crasso albo semicirciilari, dentibus duobus vel tribus latis posticis internis, margine externa crasso albo ; labio in- terno Icevi, svbspirali, dente solitario inajuscido ad posticam partem ; canali longo, latiusculo, recurvo, rostris prominenti- bus, externo divergente quasi furcato ut in formd caudce hirun- dinis.

Shell ovato-pyramidal, smooth and shining, pale in colour, lightly speckled with fine brown streaks and dottings, with intermissions of colour along the darker coloration of the posterior edge of the volu- tions ; spire sharply mucronated, being about half the length of the shell ; nine to ten flat volutions ; aperture rather broad ; outer lip thick, white, semicircular, with two or three broad denticulations within posteriorly, converges abruptly to form the channel ; external margin strong and white ; inner lip smooth, subspiral, with a single rather large node or tooth at the posterior part ; channel long and moderately wide, recurved, beaks prominent, outer one diverging, giving a forked appearance, as in the tail of the swallow.

This species is of the stamp of Col. bicanalifera of Sowerby, Proc. Zool. Soc. part ii. page 113; Sowerby' s Thesaurus, fig. 144.

Length, ^"^ of an inch ; width, -^^ of an inch.

Hab. Per the ' Samarang.' Cab. Gaskoin.

19. CoLUMBELLA Californiana. Tcsta oblongo-ovata, sub- pyramidalis, Icevis, nitens, brunnea, vel brunneo variabilis, ali- quando lineis tenuibus, fortioribus, aut latiusculis irregulari- bus ; spird acnminatd dimidium testa: subcequante ; anfracti- bus septem, convexis ; aperturd latd subquadrangulari ; labio externo tenuiusculo intus denticulato, labio interno leviter den- ticulato ; dorso antice transversim striato ; peritremate pur- pur eo-nigricante ; canali brevi.

Shell oblong-ovate, smooth and shining, rather pyramidal, of a brown colour, varying much iu intensity and markings, in being sometimes uniform, in others with one or two thin darker coloured cinctures, or with broad and continuous dark irregular markings


spirally passing on the whorls to be lost in the deeper colour of the apicine volutions ; spire acuminated, about half the length of the shell ; volutions seven, convex ; aperture wide, subquadrangular ; outer lip rather thin, denticulated within on its whole extent ; inner lip slightly denticulated along its rather angular inner edge ; fine strife traverse the anterior part of the dorsum ; peritreme of a dark purplo-brown colour ; channel verj^ short.

Length, -//q of an inch ; width, -^^ of an inch.

Hub. Sandeago, California. Cab. Cuming, Gaskoin.

20. CoLUMBELLA loDOSTOMA. Tcsfu oblongo-ovattt, irregula- riter brunnea ; spird acuminata, apice ccBruleo-brmmeo ; an- fractibus septem vel octo rapthn longitudinaliter decrescen- tibus ; costellis prope aperturam minus prominentibus, costis ad posticum marginem in tuberculis postice terminantibus ; aperturu postice latiuscidd, antice sub acuta ; labio externa tenui, intus denticulato ; labio interno inttis denticulato, varice promine7ite marginato ; dorso antice extus striata; canali lan- giuscida ; margine peritrematis purpureo-brunnescente. Shell oblong-ovate, of an irregular brown colour ; spire acumina- ted, apex dark bluish brown colour ; volutions seven to eight, greatly decreasing in circumference on to the apex, strongly ribbed longitu- dinally, less strongly towards the aperture, the ribs terminating in colourless nodules at the posterior edge of the volutions ; aperture rather broad posteriorly, subacute anteriorly ; o