liiii I iiiii iiiii?f im. 1 u CONCHOLOGIA ICONICA: ILLUSTRATIONS SHELLS OF MOLLUSCOUS ANIMALS, VOL. X. CONTAINING MONOGEAPHS OF THE GENERA AMPULLARIA. CAPSA. GANCELLARIA. CAPSELLA. LITTORINA. SANGUmOLARIA. SOLETELLIIMA. PSAMMOBIA. PSAMMOTELLA. MYTIUJS. MODIOLA. LITHODOMUS. AVICULA. LOVELL AUGUSTUS REEVE, F.L.S., F.G.S. COKKESPONDING SOCIETY OF WUKTEMHEKG, AND OF THE LYCEUM OF NATURAL HISTORY OF NEW YORK. And never, since the middle summer's spring. Met we on hill, in dale, forest, or mead, By paved fountain, or by rushy brook. Or on the beached margent of the sea. To dance our ringlets to the whistling wind. But with thy brawls thou hast disturbed our sport." Shakesfeare LONDON : LOVELL REEVE, HENEIETTA STREET, COVENT GARDEN. 1858. MONOGRAPH OF THE GENUS A M P U L L A R I x\ ' He looks abroad iuto the varied field Of Natnre, and though poor perhaps, cunipared With those whose mansions glitter in his sight, Calls the delightful scenery all his own, — His own the monntains, and the valleys his, And the resplendent rivers." — Cowprr. Ampiillffn^i, I^l. I- \ >»T oowerlry clrl, et. lith "feicenc Brooka Imp. AMPULLARIA. Plate I. Genus AMPULLARIA, Lamarck. Testa glohom vel ovata, plus minus umbilicata, raro imper- forata, epidermidc crassmsculd olivaced induta, spira siUiira modo simplici, modo canaliculatd, anfradiius plus minus veniricosis, lavigatis; aperturd sichampld, lahro simplici. Operculum, nunc corneum nunc calca- remn, aperturam claudens. Shell globose or ovate, more or less umbilieated, rarely ita- perforated, covered with a rather thick olive epider- uais, suture of the spire sometimes simple, sometimes channelled, whorls more or less ventricose, smooth ; aperture rather large, lip simple. Operculum some- times horny, sometimes calcareous, closing the aper- ture. The sombre hue and olndous similarity of form, desti- tute of any indication of sculpture, of the shells of Avipul- larla, have led to this genus beiug very much neglected by the collector ; and their uuattiactive range of habita- tion, in swampy marshes, ponds, and rivers, has not been very inviting to the traveller. A few ardent naturalists, including among the foremost M. D'Orbigny and Mr. Bridges on the banks of the great rivers of Bolivia, Dr. Spis iu Brazil, M. Caillaud in Africa, Mr. Yates and Mr. >Vallace at the rivers Marafion and Amazon, MM. Salle and Ghiesbrecht in Mexico, Mr. Dyson in Honduras, Mr. Benson in India, and Mr. Layard and Mr. Templeman in Ceylon, have directed their energies since Lamarck's time to AmpullaiiaAimximg ; and the result is the following ample series of a hundred and thirty species, nearly two- thirds of which are new to science, and of which scarcely a dozen were known to the author of the ' llistoire des -Ynimaux sans Vertebres.' A monogTaph of the genus was published by Dr. Philippi in 1851, in -M. Kuster's edition of the ' Conchylien Cabinet' of Chemnitz, but it is founded on very imperfect materials. The species of Ampullaria are exceedingly well-defined, though bearing great general resemblance, and, what is not usual with moUuscs aflecting such habitats, many of them are stained at the aperture with brilliant colour. The animal, as is now sufficiently well known, is of an amphibious nature, possessing a double system of respira- tion, which adapts it to breathe either air or water, ac- cording to the requirements of the place of its habitation, which may be at one time flooded and at another dry. This peculiarity, observed originally by Mr. Guilding at the Caribbee Islands, was noticed first in dctnil bv M. Caillaud on his return from his expedition to the Nile. On placing some of his Ampullaria in a basin of water, M. Caillaud unexpectedly found many of his specimens come to life, and M. D'Oi-bigny discovered the existence of a distinct pulmonary apparatus. So many new species of Ampullaria have been collected by recent travellers in comparatively few localities, that it is more than probable the genus abounds to a much larger extent than we have at present any idea of. It does not, however, exist in the great rivers of North America or of North-temperate Europe, and is peculiar to warm and tropical latitudes. Species 1. (Mus. Cuming.) AMPULL.4.IIIA CUPRINA. Ariip. testd subquadrato-globosd, tenuiculd, profundi angulato-umbilicatd, spird obtusi exsertd, anfraciibus superne late planatis, ad angidimt rotundatii, deinde plano-convexis ; lutescente, rnfo- fusco tinctd et fasciatd ; aperturd ovatd, labro sim- plici. The copper A.mpullaria. Shell somewhat squarely globose, rather thin, deeply angularly umbibcatcd, spire obtusely exserted, whorls broadly flattened round the upper part, rounded at the angle, then flatly convex; yellowish, stained and banded with red-brown ; aperture ovate, lip simple. Hab. ? A light, somewhat inflated species, with the whorls broadly rotundately angled round the uppeif part. Species 2. (ilus. Cuming.) Ampullaria Spixii. Amp. testd globoso-turbinatd, sui- ampUter iimbilicatd, spird subobtusd, anfractibus ru- tundatis, lavibus, subangustis, superne declivibus ; lutescente, fasciis interne castaneis cingulatd; aperturd circulari-ovaid, lahro simplici. Spix's Ampullaria. Shell globosely turbinated, rather largely umbilieated, spire rather obtuse, whorls rounded, smooth, rather narrow, slanting round the upper part; yellowish, encircled with dark chestnut bands; aperture circular-ovate, lip simple. D'Orbigny, Voy. dans I'Amer. Mci-id. p. 37(5. pi. 52. !'. 7, 8. Hab. lliver Parana, South America. December, 1S5G. AMPULLAEIA.— Plate I. A tine turbiuated species, of Cyclostoma-Vkt growth, I conspicuously banded and lineated with dark chestnut ! upon a yellowish ground. Species 3. (Mus. Cuming.) Ampullatia gigas. Amp. tedd ventricoso-, tm, angude umhilicatd, spird brevissimd, immersd, su- turd angude profundi canalwulatd, mifractibua con- vexis ; virescente-olivaeed, fascik angustis pallidi oli- vaceia cingulatd; aperturd ohhngo-omtd, fauce auran- tio-lutescente, cairulescente faaciatd, labro dmplici, intus nigro-macwlato. The giant Ampullabia. Shell ventricosely globose, very large, narrowly umbilicaled, spire very short, immersed, sutwe narrowly deeply channelled, whorls convex ; greenish-olive, encircled with narrow faint- olive bands ; aperture oblong-ovate, interior orange- yellow, blue-banded, lip simple, black spotted within. Spix, Testacea Fluviatilia Brasiliensia, p. 1. pi. 1. f. 1. Hnh. Solomon's River, Brazil. This truly fine species is quite remarkable for its bold ventricose growth and immersed channelled spire. Species 4. (Mus. Cuming.) The coknccopia Ampullakia. Shell oblong-ovate, ob- liquely produced, nan-owly umbilieated, spire short, rather acuminated, whorls rounded, smooth, shining, slanting round the upper part ; livid-brown, encircled with naiTOW red bands and lines ; aperture ovate, rather large, effused. Eab. Columbia. Of light substance, elegantly obliquely convoluted, with the aperture boldly effused. Species 5. (Mus. Cuming.) Vmplllaria cornucopia. Amp. tedd oblongo-ovatd, oblique proimtd, anguste umbilicatd, spird brevi, aub- acuminatd, mfractibus rotundatis, lavibtts, nitentibus, superne decUvibus ; livido-fuscescente, lineis fasciisque rufis angudis cingidaid; aperturd ovatd, mbampld, effum. Ampullakia crassa. Amp. tesld subquadrato-ghbosd, crassd, imperforatd, spird breviusculd, obtusd, anfracti- hm convexis, larciiw, superne decUvibus ; sordide luies- cente, fasciis liiieisgue castaneis subdistatitiius cingu- latd; aperturd ovatd, Mro eolutnellari calloso, ap- presso, albo. The thick Ampullakia. Shell somewhat squarely glo- bose, thick, imperforated, spire rather short, obtuse, whorls convex, smooth, slanting round the upper part; dull yellowish, encircled with rather distant chestnut bands and lines ; aperture ovate, columellar lip callous, appressed, white. SwAiNsoN, Zool. Illus. (First Series), vol. iii. pi. 101. Helix crassa, Spix. Ampullaria OUvieri, Deshayes. Helicina exumbilicata, Spix. I Ampullaria Brownii, .Tay. Hab. Brazil. Chiefly distinguished by its white, callous columellar lip, which is appressed over the place of the umbilicus. Ampu liana . FI. JI. Sowerby del ctlitK , U-actait Brooka Tmrp AMPULLARIA. Species G. (Mus. Cuming.) Ampullaria figclina. Amp. tedd ovatd, tenukuld, spird brevi, anfractibtcs connexis, ad suiuram mtbde- pressk, lavilius; mnbilico amplo ; aperturd ovatd; pallide oUvaceo-ciiiered, Unek fasciiique ritfia cingu- latd. The clay Ampdllabia. Shell ovate, rather tliiu, spire short, whorls convex, rather depressed at the suture, smooth ; umbilicus large ; apertm-e ovate ; pale olive- ash, encircled vvith red lines and bands. Spix, Test. Fluv. Brasil. pi. 4. f. 4. Ampullaria lineata, var., Spix. Hub. BrazU. SpLx appears to have figured this species under the above name, and to have regarded it afterwards as a va- riety of his A. lineata. It is well distinguished by its light textui'e, largely umbilicated growth, and red-banded colouring upon a pale olive-ash ground. Species 7. (Mus. Cuming.) Ampullahia rufilineata. Amp. tedd ovatd, spird stib- prominuld, anfractUrm superiie subdepressis, deinde convexis, Icevibus ; unibilico obtecto ; aperturd ovatd, labro columellari reflexo ; albd, ftdvo-spadiced, lineis rjifis varie eingulald. The red-lined Ampullaria. Shell ovate, spire rather prominent, whorls rather depressed at the upper part, then convex, smooth ; umbilicus covered ; apei-- ture ovate, columeUar lip refiected ; white, fulvous- fawn, variously encircled with red lines, Hah. ? Conspicuously encii-cled with red lines upon a fulvous- fawn gTound, as in the preceding species, but distinguished bv the absence of a visible umbilicus and by the more prominent convolution of the spii-e. Species 8. (Mus. Cuming.) Ampvllaeia NoiiiLis. Amp. tedd subpyriformi-globosd, spird depressiusculd, anfractibiiK supeme ventricosis, lavibus ; iimhilico subprofundo ; aperturd pyriformi- ovatd, perarn,pld; intense olivaced, extws corned, ob- scure nigro fasciatd, labro intense nstulato-rufo. The noble Ampullaria. Shell somewhat pyriformly globose, spire rather depressed, whorls ventricose round the upper part, smooth ; umbilicus rather deep ; aperture pyriformly ovate, very large; dark olive, externally horny, obscurely black-banded, lip deep burnt red. 3ab. River Marafion ; Mr. Yates. This fine species, of a pyriformly globose shape, with a dark olive horny exterior, is painted within the lip with a peculiar deep-toned burnt red. Species 9. (Mus. Cuming.) Ampullaria Paludinoides. Amp. testa gloiiosa, spira mediocri, anfractibus rotundatis, ad suturam subde- pressis, Icevibm ; wnbilico subobtecto ; sordide olivaced, labro flavicatite. The Paludina-like Ampullaria. Shell globose, spire middling, whoris rounded, a little depressed at the suture, smooth ; umbilicus nearly covered ; dull olive, lip yellowish. Christofori and Jan, Mus. Berolin. Philippi in Kiister, Conch. Cab. Amp. p. 27. pi 7. f. 4. Hah. ? Distinguished by its plump, rounded form and dark olive colour, the lip being coloured in a characteristic manner, with pale yellow. Species 10. (Mus. Cuming.) Ampullaria conica. Amp. testd subglobosd, spird sub- promimild, anfractibus eonvexis, leeviJiUs, nitentibus ; nmbilico obtecto; aperturd ovatd, labro vix reflexo ; fulvo-olivaeed, labro albicante. The conical Ampullaria. Shell subglobose, spire rather prominent, whorls convex, smooth, shining; umbilicus covered; aperture ovate, lip scarcely re- flected ; fulvous olive, lip whitish. Wood, Uab. ? The spire has a more prominently convoluted aspect than in the preceding species, from the last whori rather more than usually descending next the aperture. In co- lour the shell is of a lighter fulvous olive. Ampul] arm, Pl.JII. K m^ Scwerby cbi etiitk "'^Ajicent iTTooka Imp. AMPULLARIA. Species 11. (Mus. Cuming.) Ampullaria adusta. Amp. testa globoso-turhinatd, spird mediocri, suturd canaliculatd, anfraciibus ro- tundatu, lavigaik ; mnbilico suhamplo ; aperturd ovatd ; Ittlescente-mridi, fasciis saturate olivaeeis un- dique citiffulatd. The adust Ampullaria. Shell globosely turbinated, spire middling, suture clianneUed, whorls rounded, smooth ; umbilicus rather large ; aperture ovate ; yellowish-green, encircled throughout with dark olive bands. IM. ? A rich dark-banded species, with channelled suture, of globose form, ])robably from Borneo. Species 12. (Mus. Cuming.) Ampullaria pilula. Amp. testd globosd, spira brevi, subimmersd, anfraciibus convexis, tumidis, siiperne de- presse rottmdaiis, leevigatis ; mnbilico parviusculo ; aperturd ovatd; luteseente-viridi, olivaceo fasciatd et nubeculatd. The ball Ampullaria. Shell globose, spire short, ra- ther ilnmersed whorls convex, swollen, depressly rounded at the upper part, smooth ; umbilicus rather small ; aperture ovate ; yellowish-green, banded and clouded with olive. Eab. Borneo. Of the same typical charactei- as the preceding species, rounder, with the spire shorter and slightly immersed. Species 13. (Mus. Cuming.) Ampullaria megastoma. Amp. testd globoso-ventri- cosd, Naticaformi, spird plano-immersd, anfraciibus convexis, tumidis, spiraliier obscure funieulatis, ru- gose ; mnbilico obiecto ; aperinrd perampld, liinato- ovatd ; intense fiisco-olivaced, inins purpvreo-fuscd, lividd. The labge-moutued Ampullaria. Shell globosely ventricose, Natica- shaped, spire flatly immersed, whorls convex, swollen, spirally obscurely corded, rugose ; umbilicus covered over ; aperture very large. lunar-ovate ; dark brown-olive, interior purple-brown, livid. SoWERBY, Tankerville Catalogue, App. p. 10. Ampullaria Neriioides, D'Orbigny. 3ab. Mouth of the Rio Uruguay ; D'Orbigny. Distinguished from all other species of the genus by its remarkably expansive Natica-shaped growth and livid purple-brown interior. Species 14. (Mus. Cuming.) Ampullaria sordida. Amp. testd gtoboso-iurbinaid, spird subprominuld, suiurd canaliculatd, anfraciibus rotundatis, .wperne impressis, liBvigaiis ; vmbilico pro- funda ; apa-turd ovaid, labro vix reflexo ; rufo-oUoa- ced, labro castaneo. The dull Ampullaria. Shell globosely turbinated, spire rather prominent, suture channelled, whorls rounded, impressed at the upper part, smooth ; uni- bOicus deep ; aperture ovate, lip scarcely reflected ; reddish-olive, lip chestnut. SwAlNSON, Zoological Illustrations, vol. iii. pi. 143. Eab. Rio de la Plata. Of regular rotundately turbinated growth, smooth, and chestnut-rust-coloured. Species 15. (Mus. Cuming.) Ampullaria Hondurasensis. Amp. testa ovatd, ven- tricosd, spird breviusculd, acuid, anfraciibus superne plano-declivibus, deinde convexis, basin versus subat- ieimaiis, corrugato-striatis ; nmbilico angnsio ; aper- turd pyriformi-ovaid, labro subexpanso ; cinereo-oli- vaccd, nitenie, fasciis linearibus obscure pictd. The Honduras Ampullaria. Shell ovate, ventricose, spire rather short, sharp, whorls flatly slanting round the upper part, then convex, rather attenuated to- wards the base, wrinkle-striated ; umbilicus narrow ; aperture pyriforraly ovate, lip rather expanded ; ash- olive, shining, obscurely painted with linear bands. Hab. Honduras; Dyson. A neatly convoluted species of a peculiar shining livid ash-olive colour, obscurely painted with linear bands. June, 1856. Ampul /nria, Fl. B. AMPULLARIA. Plate IV. Species 16. (Mus. Cumiug.) Ampullakia autumnalis. Amp. testa turbinatd, spird mbprominuld, anfrcwtibm rotundatis, ad suturam de- presdmculis, obscure spiraliter funiculatis, funiculk irregularibus, interstitiis maUeatis et atriatis ; wM- lico mbamplo ; apertura rotundato-ovatd, labro sub- expanso ; olivaced, castaneo-rufo tinctd. The autumnal Ampullakia. Shell turbinated, spire rather prominent, whorls rounded, rather depressed at the suture, obscurely spirally corded, cords irre- gular, with the interstices malleated and striated; umbilicus rather large; aperture rotundately ovate, lip rather expanded; olive, stained with chestnut- red. Hfth. ? The whorls of this species are somewhat more than usually rounded, whOe they are concentrically sculptured with obscure cords, irregular and wrinkle-like in parts, with the interstices malleated and striated. The outer surface is partially covered on the olive ground with a deciduous chestnut-red coating. Species 17- (Mus. Cuming.) Ampullakia venetus. Amp. testa globosd, subventri- cosd, spird breviusculd, acuta, anfractibus superrii de- clivibus, deinde convexis. utidique malleatis et minute cremdato-striatis ; umbilico mediocri; apertura lu- nato-pyriformi, parviusculd, labro expamo ; luteo- virescente, versus apicem pallidiore, labro lutescente. The sea-green Ampullakia. Shell globose, subven- tricose, spire rather short, sharp, whorls slanting round the upper part, then convex, everywhere mal- leated and minutely crenulately striated ; umbilicus middling; aperture lunar-pyriform, rather small, lip expanded ; yellowish-green, paler towards the apex, lip yellowish. H„b. ? A pale sea-green species, witli the surface ratlier largely malleated throughout and minutely crenulately striated the lip and columella being of a rather conspicuous pale yellow tone. Species 18. (Mus. Cuming.) Ampullakia urceus. Amp. testd globoso-turbinatd, so- lidiusculd, spird brevi, plerumque plus minus erosd, anfractibus compressi rotundatis, ad suturam depres- siusculis, irregulariter corrugato-liratis, et rugoso-re- ticulatis ; umbilico amplo, prof undo ; apertura pyri- formi, labio columellari rejlexo ; lutescente-albd, epi- dermide crassd earned olivaced indutd. The pitcher Ampullakia. Shell globosely turbinated, rather sobd, spire short, generally more or less eroded, whorls compressly rounded, a little depressed at the suture, irregularly wrinkle-ridged and ru- gosely reticulated ; umbilicus large and deep; aper- ture pyiiform, columellar bp reflected ; yellowish- white, covered with a thick horny olive epidennis. Merita urceus, Miiller, Hist. Verm. p. 174. Ampullaria urceus, Deshayes. Ampullaria rugosa, Lamarck. An eadem. Ampullaria dolium, Philippi. An testa junior. Ampullaria leucostoma, Swainson. Hab. Trinidad; Cutler. This well-known species is at once recognized by its compressly rounded form and stout wrinkle-ridged horny epidermis, mostly eroded at the apex. Species 19. (Mus. Cuming.) A.mpullaria puncticulata. Amp. testd subpyriformi- ovatd, ventricosd, spird mediocri, anfractibus superni tumidis, versus basin attmiuatis, lavigatis, sub lente punctulatis ; umbilico angusto ; apertura oblongo- ovatd, labro columellari reflexo ; olivaceo-virescente, fasciis angustis viridibus obscure pictd, labro aurantio- rufo. The punctured Ampullaria. Shell somewhat pyri- formly ovate, ventricose, spire middling, whorls swollen round the upper part, attenuated towards the base, smooth, finely punctured beneath the lens ; umbilicus narrow ; aperture oblong-ovate, columellar lip reflected ; olive-green, obscurely painted with narrow green bands, lip orange-red. Swainson, Zoological Illustrations, vol. iii. p. 143. Uah. ? Of a very characteristic pear-bke ovate form, with a warm orange-red lip. Species 20. (Pig. a, b, Mus. Cumiug.) Ampullaria vexilldm. Amp. testd ovatd, tenuiculd, ventricosd, anfractibus convexis, superni subplanulatis, Icevigatis, sub lente punctulatis; umbilico angusto; apertura pyriformi-ovatd, expansd, labro columellari reflexo ; olivaceo-virescente, fasciis saturate viridibus cingulatd, labro rufescente. The flag Ampullaria. Shell ovate, rather thin, ven- tricose, whorls convex, rather flattened at the upper part, smooth, finely punctured beneath the lens ; umbiUcus narrow; aperture pyriformly ovate, ex- panded, columellar lip reflected ; olive-green, encir- cled with dark green bands, lip tinged with red. IM. ? Very closely allied to the preceding species, but of a less pear-shaped form, with the whorls more flattened round the upper part. June, 1856. Aiiipn/Jdrin. If. V. . Brooks Imp. AMPULLARIA, Species 21. (Mus. Cuming.) Ampullar! A livescens. Amp. testa globosd, suhvenlri- cosd, spird irevi, anfractibus tumide decUvibus, deiude convexis, Icevibus, nitentibiia ; umbilico profnndo, aub- contracto ; aperturd pyriformi-ovatd ; Ikido-cinered, juxta suluram fiilvescente, fasciis olivaceo-viridibus cingulatd. The livid Ampullaria. Shell globose, somewhat vcn- tricose, spire short, whorls tumidly slanting round the upper part, then convex, smooth, shining; umbi- licus deep, rather contracted ; aperture pyriformly ovate ; livid ash, fulvous next the suture, encircled with narrow olive-greeu bands. Hah. ? A rather tumid species, with the whorls full and slant- ing round the upper part, of a fulvous livid colour, en- circled with narrow greenish bands. In substance rather thin, with a smooth shining surface. Species 22. (Mus. Cuming.) Ampullaria Lattuei. ylmp. testa globosd, solidiusculd, npird bn'viuscnld, mifractibics rotundatis, lavibus ; umbilico profnndo, subcontracto ; sordidi fulvd, fas- ciis pallids olivaceo-viridibus cingulatd; aperturd ovaid, lubro subreflexo. Lattre's Ampullaria. Shell globose, rather solid, spire rather short, whorls rounded, smooth ; umbi- licus deep, rather contracted ; dull fulvous, encircled with pale olive green bands ; aperture ovate, lip slightly reflected. Hnb. Coban, Guatemala; Lattre. Of a less tumid form than the preceding species, and of thicker substnuce, not shining exteriorly. Species 23. (Mus. Cuming.) Ampullaria haustrum. Amp. testa compresse ovatd, ventricosissimd, vie umbilicatd, spird parvd, subim- mersd, aitfraciibus ad suturam impresse canaliculatis, delude convexis ; sordide olivaced, striata ei malleatd, fasciis angustis palUde virescentibus citigulafd ; aper- • turd pyrifornii-oblongd, perampld ; fauce livido-pur- pured. TuE scoop Ampullaria. Shell compressly ovate, very vcntricose, scarcely umbilicated, spire small, rather immersed, whorls impressly channelled at the suture, then convex ; dull olive, striated and malleated, en- circled with narrow faint green bands ; aperture py- riformly oblong, very large ; livid purple in the interior. Hah. River Maranon, Brazil. This fine species belongs to the same type as A. imii- larnni, D'Oi'bigny, from La Plata. Its chief points of difference consist in being less distinctly umbilicated, and in having a much larger and more expanded aperture. Species 24. (Mus. Cuming.) Ampullaria melanocheila. Amp. testa globoso-tur- binald, spird mediocri, anfractihts superne planatis, deinde convexis ; umbilico amplo, profnndo ; aperturd ovatd; olivaceo-virescente, fasciis angustis pallide ru- fescente-fuscw cingulatd, labro nigro. The black-lipped Ampullaria. Shell globosely tur- binated, spire middling, whorls flattened round the upper part, then convex ; umbilicus large, deep ; aperture ovate, olive-green, encircled with narrow faint reddish-brown bands, lip black. Eab. ? A very characteristic species, rather deiiressly flattened next the suture, with the lip conspicuously black-stained within tiie aperture. Species 25. (Mus. Cuming.) Ampullaria Columbiensis. Amp.testd globom, tenui- culd, vmtricosd, spird subplanulatd, anfractibus con- vexis, Icevibus, nitentibus ; iimbilico parvo, contralto ; aperturd ovatd, subampld ; fulvescente-cinered,fascii.i pallide olivaceo-viridibus cingulatd. The Columbia Ampullaria. Shell globose, rather thin, ventricose, spire rather flat, whorls convex, smooth, shining ; umbilicus small, contracted ; aperture ovate, rather large ; fulvous ash, encircled with faint olive- green bands. Sowerby, MS. Mus. Cuming. Eab. Chiriqui, Veragua. Of light globose structure, with only a small umbilicus, fulvous in tone of colour, encircled with faint olive-greeu bands. August, 1856. JmpuUarm B. VI. Sowsrby dd Alith AMPULLARIA. Species 26. (Mus. Cuming.) A.MPULL.\RIA LuzoNlCA. Amp. testd globosa, liimidius- culd, tenui, anfractibns superne plano-mpressis, deinde rotimdatis, lavibus, longitudinaliter obsolete mlcatk ; umbilico parvo ; aperturd ovatd, subampld ; fidves- cenfe-olivaced, obscure famatd. The Luzon Ampullaria. Shell globose, rather swol- len, thin, whorls flatly impressed round the upper part, then rounded, smooth, longitudinally obsoletely grooved ; umbilicus small ; aperture ovate, rather large ; fulvous-olive, obscurely banded. Hub. Calanang, Island of Luzon, Philippines ; Cuming. A light globosely turbinated shell, rather impressed next the suture, obscurely longitudinally grooved on the penultimate whorl. Species 27. (Mus. Cuming.) .Vmpullaria Layakdi. Amp. tesld subcompresse globosd, anfractibm superne angtiste plano-impressis, deinde ro- tiindaiis, lavibus, niteiitibus ; umbilico parvo, con- tracto ; aperturd ovatd; albidd, epidermide corned olivaced indutd. Lavard's Ampullaria. Shell rather compressly glo- bose, whorls narrowly flatly impressed round the upper part, then rounded, smooth, shining ; umbili- cus small, contracted; aperture ovate; whitish, co- vered with an olive horny epidermis. Httb. Colombo, Ceylon ; Layard, Templeman. Of a more compressly globose form than the preceding species, with a conspicuous horny epidermis. Species 28. (Mus. Cuming.) A.\iPULLARiA Yatesii. Amp. testa globosa, spird brevi, parum exsertd, anfractibus superne subimpressis, deinde plano-convexis, longitudinaliter irregulariter striatis ; umbilico subangusto, profunda ; aperturd pyriformi- ovttta, perompU, labro reflexo ; fulvo-ca.itanen, lineis nigris incp.quidistantibus cingulatd, labro intus rufo- aurantio tincto. Yates's Ampullaria. Shell globose, spire short, but little exserted, whorls rather impressed round the upper part, then flatly convex, longitudinally irregu- larly striated ; umbilicus rather narrow, deep ; aper- ture pyriformly ovate, vei-y large, lip reflected ; ful- vous-chestnut, encircled at unequal distances with black lines, lip tinged within with reddish-orange. Hab. Kiver Maraiion ; Yates. This interesting species is of a peculiar fulvous-chestnut colour, encircled at unequal distances with black lines. The aperture is unusually large, tinged next the lip with a warm reddish-orange. Fig. 29. (Mus. Cuming.) The specimen here figured is the Ceylon form of A. Luzonica, represented above it at Fig. 26, from the Philippine Islands. It is rather more flatly impressed round the upper part of the whorls. Species SO. (Mus. Cuming.) Ampullaria porphyrostoma. Amp. testa oblongo- globosd, spird subprominuld, anfractibus superne decli- vibus, deinde convexis, lavibus, nitentibus ; mniilico subangusto, prof undo ; aperturd ovatd, subeffusd ; ci- nereo-olivaced, obscure muUifasciatd, aperturd nigri- cante. The purple-mouth Ampullaria. Shell oblong-glo- bose, spire rather prominent, whorls slanting round the upper part, then convex, smooth, shining ; um- bilicus rather narrow, deep ; aperture ovate, rather effused ; ash-olive, faintly many-banded, aperture rather blackish. Hab. ? Of a rather oblong turbinated form, and shining ash- olive hvie, the whorls being gently slanted next the suture. .\ugus Amjnilhuia. B. VU. AMPULLARIA. Plate VII. Species 31. (Mus. Cuming.) Ampi:i,larh flatilis. Amip. lestd vix umbilicata, glo- hosd, tumidd, spird brevimculd, anfractibm coiwexis, lavlbna, longitudinalite-r striato-scalptis ; virescetite- olkaced, atigude foiciatd ; aperturd pyriformi-ovatd, lahro columellari subreJlexo,Jlavescente. Thk blown Ampullaria. Shell scarcely umbilicated, globose, lumid, spire rather short, whorls convex, smooth, longitudinally striately scratched ; greenish- olive, narrowly banded ; aperture pyriformly ovate, columellar lip slightly reflected, yellowish. Hob. Tabasco, Mexico. Allied to J. Uvescens, but obviously distinct in form, more rounded, with the spire less exserted, and more con- tracted at the umbilicus. Species 33. (Mus. Cuming.) Ampullaria malleata. Amp. lestd ylobosd, tumidd, vix umbilieatd, spird subacuminatd, anfractibv.s con- vexis, undique conspicue malleatis ; livido-olivaced ,- aperturd pyriformi-onatd, labro stibeffuso, iniiis fia- vescente. The hammered Ampullaria. Shell globose, tumid, scarcely umbilicated, spire rather acuminated, whorls convex, everywhere conspicuously maUeated ; livid olive ; aperture pyriformly ovate, lip rather etTused, yellowish within. Jonas, Moll. Beitr. p. 22. pi. 10. f. 11. Ampullaria reflexa, var., Philippi Hab. Mexico. This species is clearly not a variety of A. reflexa. Al- though the malleated surface predominates in a manner to render it a distinguishing character, the shell is distin- guished otherwise by peculiarities of form. Species 33. (Mus. Cuming.) Ampullaria speciosa. Amp. testd globosd, profundi umbilieatd, spird breviusculd, subimmersd, arifractibus ad sutiiram caualiculaiia, deinde convexis ; glaucd, lineato-fasciatd, epidermide olivaced corned indutd ; aperturd pyriformi'oblougd, perampld, lahro iiitus in- tense mitdato. The handsome Ampullaria. Shell globose, deeply umbilicated, spire rathtr sliort, somewhat immersed, whorls channelled at the suture, then convex ; glau- cous, banded with lines, covered with an olive horny epidermis; aperture pyriformly oblong, very large, lip deep vermilion within. Philippi, Zeitsehrift fiu- Malac. 18-19, p. 18. Kuster. Conch. Cab. Amp. p. 40. pi. 11. f. 3. Ilab. Zanzibar. A fine glaucous species, covered with a rather thin olive-horny epidermis, deep vermilion-stained within the lip, convoluted nearly on a vertical plane. Species 34. (Mus. Cuming.) Ampullaria h.emastoma. Amp. lestd globosd, soli- diusculd, subprofunde umbilieatd, spird brevi, obtusd, anfractibiis superne pluntdatis, deinde convexis, un- dique peculiariler corrugato-malleatis ; livide oliva- ceo-nigrd ; aperturd lunato-oblongd, labro intits in- tense sanguineo. The blood-mouthed Ampullaria. Shell globose, rather solid, rather deeply umbilicated, spire short, obtuse, whorls rather flat at the upper part, then convex, everywhere peculiarly wrinkle-malleated ; livid olive-black ; aperture lunar-oblong, lip deep blood-red within. Hab. Peru. Of an intense dark livid colour, almost black, with the surface peculiarly wrinkle-malleated, and the lip stained within with deep blood-red. Species 35. (Mus. Cuming.) Ampullaria polita. Amp. testd oblongo-globosd, sub- glayidiformi, subimperforatd, spird vix acuminatd, an- fractibus convexis, pecuUariter nitentibus, olivaceo- virerite ; aperturd pyriformi, subangustd. The polished Ampullaria. Shell oblong-globose, somewhat acorn-shaped, almost imperforated, spire slightly acuminated, whorls convex, peculiarly shin- ing ; olive-green ; aperture pyriform, rather narrow. Deshayes, Encyclopedic Methodique, Vers, vol. ii. p. 31. Eadem. Ampullaria virescem, Deshayes. Hab. Port Jackson, Australia. Of an oblong-globose glandiform shape, with a peculiar dark, shining, olive-green surface. AmpuUaria, Fl mi. Smverby ddetTitb. ■Vmcenx Brocis Imp. A M P U L L A R I A. Fig. 36. (Mus. Cuming.) The shell here figured proves to be a variety, of finer growth, of A.pilula, represented at PI. III. Fig. 12. Species 37. (Mus. Cuming.) Ampull.'iria Turbinoides. Amp. testa obhngo-turbi- itatd, soUdiusculd, subimperforatd, spird exserld, aii- fractibus convexis, lavibu^ ; olivaceo-virente, obscure fasciatd; aperturd ovatd, parviusculd, labro columd- lari reflexo. The TiKBO-LiKE Ampull.\ria. Shell oblong-turbi- nated, rather solid, almost imperforated, spire ex- serted, whorls convex, smooth ; olive -green, ob- scurely banded ; aperture ovate, rather small, colu- inellar lip reflected. Hab. Australia. A dull smooth olive-greeu species, faintly banded, of a Turbo-Wke growth. ture lunar-oblong, rather large, lip tinged with orange-red within. Spix, Test. Fluv. Brasiliensia, pi. 3. f. 1. Hab. ? Allied to A. urceus, but less roughly wrinkled, and of a ligliter olive-horn colour, tinged in the mouth with a warm orange-red. Species 38 (Mus. Cuming.) Ampullakia olivacea. Amp. testa suboblotigo-glo- bosd, vix umbdicat/i, sjiird mediocri, an/ractibiis ad Sttturam canaliculatis, deinde convexis, lotitjiiudina- Uter corrugato-striatis ; virente-olivaeed ; aperturd U- nato-oblongd, suhampld, labro intus auraatio-rufo. The olive Ampullakia. Shell somewhat oblong-glo- bose, scarcely umbilicated, spire moderate, whorls slightly channelled at the suture, then convex, longi- tudinally corrugately striated ; greenish-olive ; aper- I Species 39. (Mus. Cuming.) I Ampullakia Lymn^^foemis. Amp. testd compre-isi I ovatd, subtus excavatd, subampUter umbiUcatd, spird ■fubimmersd, arifractibus superne plamdatis, deinde plano-convexis ; sordid} glaucd, fasciis quatuor fuscu distatitibus angustis cingulatd ; aperturd ovatd, late expansd. The Lymn.ea-shaped Ampullakia. Shell compressly ovate, hollowed beneath, rather largely umbilicated, spire slightly immersed, whorls flattened round the top, then flatly convex ; dull glaucous, encircled with four distant narrow brown bands ; aperture ovate, largely expanded. Hab. River Maranon. This fine species is distinguished by its elegantly con- voluted Lymnrea-Vkt form, and largely expanded aperture Fig. 40. (Mus. Cuming.) This shell, though differing so much in appearance from A. Layardl, represented at PI. VI. Fig. 27, is identical with it, and illustrates an example of the same species with the surface raalleated. August, 1856 AmpuUana. Th IX. Vincent brooks Ira-p AMPULLARIA. Species 41. (Miis. Cuming.) Ampullarla. fasci.^.ta. ^mp. testa ovato-globosd, tenui, injlatd, umbilicatd, spird parvitisculd, subimmersd, an- fractilms ad suturam impress^ canaliculatis, deinde rotundatk, maUeatk, niientibus ; limdo-glaucd,fasciis angnstis rufescenle-glaucis cingidatd ; aperlurd ovatd, snbampM. The banded Ampullaria. Shell ovately globose, thin, inflated, umbilicated, spire rather small, slightly im- mersed, whorls impressly channelled at the suture, then rounded, malleated, shining; livid glaucous, encircled with narrow reddish-glaucous bands ; aper- ture ovate, rather large. Hab. ? A very characteristic elegantly convoluted species, deeply impressed at tiie suture and conspicuously umbilicated, of light texture and pale glaucous colour, encircled with darker reddish-glaucous bands. We select this out of the many that have been described and figured by authors under the name of A.fasciata, trusting it may henceforth be regarded as the fixed type of that species. Species 43. (Fig. 43 and 43, Mus. Cuming.) Ampullaria insularum. Amp. testa ovato-globosd, tenuiculd, injlatd, augmte profunde umbilicatd, spird brevissimd, immersd, anfractibus ad suturam impresse canaliculatis, deinde convexis, undique dense reticulato- striatis ; olivaceo-virente, pallide fasciata ; aperturd circulari-ovatd, labro integro, intus rufo-aurantio tinclo. The island Ampdllaria. Shell ovately globose, rather thin, inflated, narrowly deeply umbilicated, spire very short, immersed, whorls impressly channelled at the suture, then convex, everywhere closely reticulately striated; olive-green, faintly banded; aperture cir- cular-ovate, lip entire, tinged with reddish-orange. D'ORBiONy,Voy. dans TAmer. Me'rid. Moll. p. 374. pi. ,51. f. 1, 3. Hab. Isles of Parana ; D'Orbigny. Rio Grande, Bolivia ; Bridges. The shells represented at Fig. 42 and 43 illustrate two different states of this species ; one in which the surface is finely indently striated, the other in which it is also ridged and malleated. The suture is deeply impressed and the aperture nearly circular and warmly tinged with orange. M. D'Orbigny describes having found specimens among the water-plants in the lakes and brooks of the Isles of Parana, La Plata, which he kept alive for a twehv- month afterwards without water. Species 44. (Mus. Cuming.) Ampullaria papyracea. Amp. testd globoso-turbinatd, tenuissimd, imperforatd, s'pird exsertd, obsolete spira- liter liratd, anfractibus convexis, lavibus, nitentibus, undique interne riifo-nigrd ; aperturd pyriformi-ob- longd, labro columellari tenue reflexo. The paper Ampullaria. Shell globosely tm-binated, very thin, imperforated, spire exserted, obsoletely spirally ridged, whorls convex, smooth, shining, everywhere intense red-black; aperture pyriformly oblong, columellar lip thinly reflected. Spix, Test. Fluv. Brasiliensia, p. 3. pi. 4. f. 1, 2. Hab. Meobamba, Western Brazil. Chiefly distinguished by its peculiarly light horny tex- ture, and very dark shining ebony colour. August, 1856. iinjntlltdia . PI. A. 5(TV\'Brb\' (icl etllt}l. ^iti^ent Brook? I-mp AMPULLARIA. Plate X. Species 45. (Mus. Cuming.) Ampullauia Oronocensis. Amp. testa globosa, am- pliter perspective umbilicata, spird ireviuscula, an- fractibus mtperne impresso-planis, deinde rotundatk ; intense olivaceo-virente, fasciis angustis nigris cingu- latd ; aperturd pyriformi-ovatd, labro irdus intense a urantiO'sangu ineo . The Oronoco Ampullaria. Shell globose, largely per- .spectively urabilioated, spire rather short, whorls impressly flattened at the upper part, then rounded ; dark olive-green, encircled with narrow black bands ; aperture pyriformly ovate ; lip deep orange, blood- red within. ZiEGLER, Mus. Cuming. Hab. River Oronoco. Of very characteristic helicoid growth, forming a large perspective umbilicus, distinguished by its vivid colour- ing. The outer surface of the shell is painted with narrow black bands upon a rich olive-green ground, whilst the aperture is stained with blood-red passing into orange. Ampullaria pachystonia, Benson. Hab. Calcutta (in the Botanic Gardens) ; Benson. Peculiarly distinguished by its shining, olive, malleated, globular form and thickened peritreme. The specimens being more or less smooth or wi'inkled, with Fig. 46 and 47, represent the extreme states of the species, the spire more or less acuminated and the umbilicus larger or smaller. Species 46. (Fig. 46 and 47, Mus. Cuming.) A.MPUELARIA GLOBOSA. Amp. testd rotundato-globosd, aiiguste profundi umbilicatd, spird brevi, obtusd, in- terdum sulexsertd, anfraclibtis rotundatis, lesvibus, ni- tentibus, phis minus malleatis ; lutescente-olivaeed, vix fasciati.i ; ajjerturd lunalo-oblongd, ampld, labro in- crassato, Jlavesceitte. The GLOBOSE Ampullaria. Shell rotundately globose, narrowly deeply umbilicated, spire short, obtuse, sometimes a little exserted, whorls rounded, smooth, shining, more or less malleated; yellowish -olive, scarcely banded; aperture lunar oblong, large, lip thickened, yellowish. Swainson, Zool. Illus. First Series, PI. 119. Eadem var. Ampullaria eorrugata, Swainson. Species 48. (Mus. Cuming.) Ampcllaria ampullacea. Amp. testd pyriformi-glo- bosd, basin versus attenuatd, anguste compresse um- bilicatd, spird brevi, obtusd, anfractibus superne decli- vibus, deinde plano-convex is, lavibus ; castuneo-oli- vaced, fasciis angustis nvmerosis cingulafd ; aperturd pyriformi-oblongd, ampld, labro intus aurantio-rufu plu^ minus tincto. The jug Ampullakia. Shell pyriformly globose, at- tenuated towards the base, narrowly compressly umbilicated, spire short, obtuse, whorls slanting round the upper part, then slightly conve.K, smooth ; chestnut-olive, encircled with numerous narrow bands ; aperture pyriformly oblong, large, lip more or less tinged within with orange-red. Helix ampullacea, Linnaeus, Syst. Nat. p. 1244. Nerita ampullacea, Miiller. Ampullaria fasciata, Lamarck. BuUmus ampullaceus, Bruguiere. Ampullaria ampullacea, Ferussac. Ampullaria magnifica, Dunker. Ampullaria Sumatrensis, Philippi. Ampullaria Celebensis, Quoy and Gaimard. Hab. Borneo. This appears to be the old Liunean type of the genus so far as it is possible to determine it. The shell is chiefly distinguished by a characteristic globosely pear-shaped form. August, 1856. Ampidloria, PI. U. \%icent Brooks AMPULLARIA. Plate XI. Species 49. (Mus. Cuming.) Ampci-laria DifsoNi. Amp. testa globosd, profundi tem- hilicatd, spird actminatd, anfractibus superm declim- 6m, deinde ttmido-rotmtdatk, compicue malleatis ; livido-grised, ferrugineo tinctd ; aperturd pyriformi- oblongd, fauce livido-purpured. Dyson's Ampullaeia. Shell globose, deeply umbili- cated, spire acuminated, whorls slanting at the upper part, then tumidly rounded, conspicuously malleated ; livid grev, tinged with rust ; aperture pyriformly ob- long, livid purple within. Hanley, Conch. Miscellany, No. 1. PI. 2. Fig. 7. Hab. Honduras ; Dyson. This species scarcely differs from A. nmlleuta, except in being more umbilicated and more globosely acuminated towards the spire. Species 50. (Fig. 50 and 51, Mus. Cuming.) Ampull.\bia Beidgesii. Amp. tedd oblongd, tenui, siib- prqfundi umbilicatd, spird turritd, anfractibus auperne late plmo-angulatis, deinde convexis, kevibus, suhnial- leatis ; virente-oUvaced, inierdum sordide olivaceo- brunned, fasciis angustis nunverosis cingulatd ; aper- turd ovato-oblongd, luhro effuso. Bridges's Ampullaria. Shell oblong, thin, rather deeply umbilicated, spire lurreted, whorls broadly flatly angled at the upper part, then convex, smooth, faintly malleated; greenish-olive, sometimes dusky olive-brown, encircled with numerous narrow bauds ; aperture ovately oblong, lip effused. Hai. Eio Grande, Bolivia ; Bridges. This fine species, collected in the interior of Bolivia by Mr. Bridges, is remarkably distinguished by the broad spiral shelf which is formed by the angular structure of ilie upper part of the whorls next the suture. Species 52. (Mus. Cuming.) AMPULLARIA immersa. Amp. testa ovatd, tenui, veutri- cosd, spird brevi, peculiariter immersd, anfractibus ad suturam profunde canaliculatis, deinde convexis, iam- bus; viresceHte-olivaced, versus spira-in pallidd, fusciis angudis cingulatd; aperturd ovatd, labro subeffuso. The immersed Ampullaria. Shell ovate, thin, ven- tricose, spire short, peculiarly immersed, whorls deeply channelled at the suture, then convex, smooth ; greenish-olive, pale towards the spire, encircled with narrow bands ; aperture ovate, lip rather effused. Hab. Rio Grande, Bolivia ; Bridges. A light ventricose species, deeply channelled at the su- ture, with the spire peculiarly rudely immersed. August, 1856. Avqni liana, Fl. III. % M.. "Kncent Brooks AMPULLARIA. Species 53. (Mus. Cuming.) Ampillaria zonata. Amp. testa mbquadrato-ovatS , tenuiculd, infiatd, anc/usti pro/unde nmbilicatd, spird brevi, acuminata, anfractibus supeme late rotundatis, vltimo basin, versus attetmato ; luteo-olivaced, lineis ritfis, nigricantibus, et viridibus promiscue cingulatd ; nperturd ovatd, ampliter effmd,fauce auranlio-luted. The zoned Ampullaria. Shell somewhat squarely ovate, rather thin, inflated, narrowly deeply umbi- licated, spire short, acuminated, whorls broadly rounded at the upper part, the last whorl attenuated towards the base ; yellowish-olive, promiscuously en- circled with red, black, and green lines ; aperture ovate, largely effused, interior oraugc-yellow. Spix, Test. Flnv. Brasiliensia, p. 1. pi. 2. f. 1, 2. Hah. Columbia. The shell here figured, the only specimen we have been able to refer to A. zonata, corresponds with the variety figured by Dr. Spix with the name A. Archimedes. Species 54. (Mus. Cuming.) Ampullaria vermiformis. Amp. testd globoso-turbi- natd, siibampliter miibilicatd, sjnrd mediocri, anfrac- tibus ad suturam impresse canaliculatis, deinde rotun- datis, snbrude striatic ; lutescente-olivaced, fasciis vi- rescentibus atigustis cingulatd; aperturd circulari- ovatd,fauce aurantio tinctd. The vermiform Ampullaria. Shell globoscly turbi- nated, rather largely umbilicated, spire middling, whorls impressly channelled at the suture, then rounded, rather roughly striated ; yellowish-olive, en- circled with narrow faint green bands ; aperture cir- cular-ovate, interior tinged with orange. Hdb. Paraguay. Distinguished from A. insulartim, to which it is closely allied, by its more spirally turbinated growth, larger umbi- licus, and painting of narrow green bands. Species 55. (Mus. Cuming.) Ampullaria Amazonica. Amp. testd oblongo-omtd, mbanguste profundi umbilicatd, spird exsertd, anfrac- tibus ad suturam impressis, deinde eonvexis, longitu- dinaliter striatis ; virescente-olivaced, obsctire fas- cial a ; aperturd pyriformi-oUongd, fauce aurantio tinctd. The Amazon Ampullaria. Shell oblong-ovate, rather narrowly deeply umbilicated, spire exserted, whorls impressed at the suture, then convex, longitudinally striated ; greeiiish-olive, obscurely banded ; aperture pyriformly oblong, interior tinged with orange. Hab. Eiver Amazon. Closely resembling Mr. Swainson's drawing of A. re- Jlexa, but of larger size and differently coloured in the mouth. Species 56. (Mus. Cuming.) Ampullakia Cassidiformi. Amp. testd oblongd, ver- sus basin attenuata, subanguste profundi umbilicatd, spird breviusculd, conoided, anfractibus super?ee tu- mido-declivibus, deinde plano-convexis ; lutescente- viridi, nigricante obscure fasciatd ; apeiturd pyri- formi-oblongd, fauce livido-pnrpured, labro columel- lari interdum sanguineo Undo. The Cassis-shaped Ampullaria. Shell oblong, at- tenuated towards the base, rather narrowly deeply umbilicated, spire rather short, conoid, whorls tu- midly slanting at the upper part, then flatly convex ; yellowish-green, obscurely banded with blackish- brown; aperture pyriformly oblong, interior livid purple, eolumellar lip sometimes tinged with liiood- red. Hab. Lake of Maraeaibo, Venezuela. A fine species from Venezuela, distinguished by its ob- long Cassis-like form. August, 1856. AfvpiiJkuia,TLim. Scvra-V ad* til ^&icmt BrookB Imp AMPULLARIA. Species 57. (Mus. Cuming.) Ampullaria MAURA. Amp. testd globosd, miguste wnibi- licatd, spird hrevmsculd, anfractibns ad siituras planu- latk, delude rotundatis, Iambus; saturate olivaced ; apertiird ovatd, labro intus jmrpureo-nigro tincto. The moor Ampullaria. Shell globose, narrowly um- bilicated, spire rather short, whorls a little flattened at the sutures, then rounded, smooth ; dark olive ; aperture ovate, lip stained within with purple-black. Hab. ? Of a particularly globose form, the lip being character- istically stained within with purple or chestnut-black. Species 58. (Mus. Cuming.) Ampillaria carinata. Amp. testd globo.id, crassd, an- yusti umbilicald, spird subobtusd, anfractilus siiperne plaiw-angulatis, deinde cmivexis ; lutescente-oUvaced ; aperturd ovatd, labro incrassato, luieo tincto. The keeled Ampullaria. Shell globose, thick, nar- rowly umbilicated, spire rather obtuse, whorls flatly angled at the upper part, then convex; yellowish- olive ; aperture ovate, lip thickened, tinged with yellow. SwAiNSOX (not of Lamarck), Zoological Illustrations. Hab. India. A round shell of soUd growth, wiili tbe whorls abruptly angled lound tiie upper part, so as to present a narrow shelf, not impressed as in the .-/. canaUculata, which Lamarck further characterizes as having a pointed ape\. Species 59. (Mus. Cuming.) Ampullaria erythrostoma. Amp. testa globoso-furbi- riatd, profunde wmbilicatd, spird acuminato-exsertd, anfractibiis rotundatis, longitudinaliter corrugato-stri- atis; intense olivaceo-castaned ; aperturd ovatd, sub- limpid, labro inius intense sanguineo. The red-mouthed Ampullaria. Shell globosely tur- binated, deeply umbilicated, spire acuminately e.\- serted, whorls roundeil, longitudinally wrinkle-stri- ated ; dark olive-chestnut ; aperture ovate, rather large, lip deep blood-red within. Hab. Zanzibar; Mr. T. Thorn. This fine dark species, with blood-red-stained mouth, is perfectly distinct from any hitherto described. Species 60. (Mus. Cuming.) Ampullaria Hopetonensis. Amp. testd subtrigono- globosd, tiimidiusculd, mediocriter nmbilicatd, anfrac- tibns siiperne impresso-declivibus, deinde convexis, leevi- bus ; virescente-olivaced, versus spiram pallidiore, fas- ciis angustis saturatioribiis cinj/ulatd; aperturd ovatd, faiice nigricante-pmpured. The Hopetown Ampullaria. Shell somewhat trian- gularly globose, rather swollen, moderately umbi- licated, whorls impressly slanting round the upper part, then convex, smooth ; greenish-olive, paler to- wards the spire, encircled with narrow darker bands ; aperture ovate, interior blackish-purple. Lea, Trans. Amer. Phil. Soc. vol. v. pi. 19. f. 84. Hub Darien, Georgia. A tumid globose shell, inclined somewhat angularly to- wards the base. [ Species 61. (Mus. Cuming.) Ampullaria lubrica. Amp. testd globoso-ovatd, an- gnstiisime umiilicatd, spird subexsertd, apice obtusd, anfractibiis convexis, longitudinaliter rugoso-striatis, nitentibus quasi lubricatis; livido-olivaced, alro-tinctd; aperturd ovatd, baM subeffnsd. The glazed Ampullaria. Shell globosely ovate, very I narrowly umbilicated, spire rather exserted, obtuse I at the apex, whorls convex, longitudinally rugosely striated, shining as if glazed; livid olive, black- smeared ; aperture ovate, rather effused at the base. Hah. ? Of a peculiar glazed livid black-smeared olive-eoloiu-, witii a narrow scarcely perceptible umbilicus, the aperture being a little effused at the base. October, 1856. AmpuUaria.Pl.JIV W^^^_ SciWerby ual.eLlftli Brooks imp AMPULLAR! A. Species 62. (Miis. Cuming.) AMPULL.iRiA COMPACTA. Amp. testd subgloboso-ovatd, vix umblUcata, spird breviusculd, anfractihi,& cauvexis, lavibus; fulvescmite-olwaced,fascHs viresce/idbus cin- gtdatd; apertiird oblongo-ovatd, ad marginem mar- moratd. The compact Ampullaria. Shell somewhat glo- bosely ovate, scarcely umbilicated, spire rather short, whorls convex, smooth ; fulvous-olive, encircled with greenish bands; aperture oblong-ovate, marbled at the edge. liab. Malacca. A smooth dark olive species, scarcely umbilicated, with rather a contracted aperture, the interior being purple- brown, with a thickened rim of opake blue-white near the edge. convex, wave-striated ; greenish-olive ; aperture ovate, columellar lip slightly recurved. Olivier, Voy. dans I'Empire Ottoman, I'Egypte et la Perse, vol. ii. p. .39. pi. ;51. f. 1. Hab. Egypt. Of a regularly tumid ovate form, characterized with longitudinally waved strife. Species 63. (Fig. a, b, Mus. Cuming.) A>rpiLLARiA NOTABiLis. Amp. testa subquadrato-ovatd, tenui, infiatd, umbilicald, spird brevissimd, aafractibus rolundato-prodmtis, hxvibus, maUeatis ; fulvo-spadi- ced, fasciis angustis, interrnptis, siibobsoletis cingu- latd; aperturd mnpld, fauce conspicue fasclatd. The remarkacleAmpullaria. Shell somewhat squarely ovate, tliin, inflated, umbilicated, spire very short, whoris rotundately produced round the upper part, smooth, malleated ; fulvous-fawn, encircled with faint narrow interrupted bands ; aperture large, with the bands conspicuously marked in the interior. Hub. ? A light inflated species, having the upper part of the whorls almost on a plane with the spire. Species 64. (Mus. Cumiug.) Ampullaria ovata. Amp. testa ovatd, tumidiusculd, subaiigusle umbilicatd, spird exsertd, aitfractibus eon- vexis, nndato-striatis ; virescente-olivaced ; aperturd ovatd, labro cohanellari subrecitrvo. The ovate Ampullaria. Shell ovate, rather swoUen, rather narrowly umbilicated, spire e.\serted, whorls Species 65. (Fig. «, b, Mus. Cuming.) Ampullaria nubila. Amp. testd conico-ovatd, Turhird- formi, solidd, vix umbilicatd, spird acuminato-exsertd, anfractibus rotmdatis, Irsvibus, hie illic varicosis ; lu- tescente, olivaceo-viridi interrupte fasciatd et nebulatd ; aperturd parviusculd, subcirculari, oblique effusd. I The cloudy Ampullaria. Shell conically ovate. Turbo- shaped, solid, scarcely umbilicated, spire acuminatelv exserted, whoris rounded, smooth, here and there va- ricose; yellowish, interruptedly banded and clouded with olive-green; aperture rather small, nearly igiiste umbilieatd, spird brevi, acittd, anfractibus eonvexis, longitudinaliter striatis, siiperne concavo-canaliculatis; pallide cinered, saturate fasciatd, sub epidermide tenui olivaced ; aperturd p^riformi- ovatd, ccerulescente, prope colnmellam aurantio-rufd. HE CHANNELLED AMPULLAEIA. Shell globose. Some- what ventricose, rather narrowly umbilicated, .spire short, sharp, whorls convex, longitudinally striated, concavdy channelled at the upper ]iart ; pale ash, dark banded beneath a thin olive epidermis ; aper- ture pyriformly ovate, bluish, orange-red next the columella. Lamarck, Anim. sans vert. vol. viii. p. .534. Hab. Cashmere; Baron Hiigel. Chiefly distinguished from A. immersa and other chan- nelled species of the genus by its sharp-pointed, though short, spire, u character specially noted by Lamarck. Species 80. (Fig. a, b, Mus. Cuming.) Ampullaeia vitrea. Amp. testd ovato-turbinatd, tenuis- simd, corned, injlatd, parum umbilicatd, spird exsertd, anfractibus primis quatuor angulatis, ad angulum in- distincte carinatis, anfractu ultimo superne declivi, angulo evanido, deinde convexo ; pellucido-brmined, flammis opaco - albidis longitudinaliter irregulariter strigatd ; aperturd ovata, lahro columellari tenue re- flexo, nitente-atro. The glassy Ampullaeia. Shell ovately turbinated, very thin, horny, inflated, but slightly umbilicated, spire exserted, first four whorls angled, indistinctly keeled at the angle, last whorl slanting round the upper part, the angle gradually disappearing, then rounded; transparent brown, longitudinally irregu- larly streaked with opake-whitish flames ; aperture ovate, columellar lip thinly reflected, shining black. Helix vitrea. Born, Test. Mus. Viudobonensis, pi. 15. f. 15, 16. Chemn. Conch, vol. xi. p. 283. pi. 210. f. 2072, 2073. Bulimus vitreus, Bruguiere, Deshayes. This extremely rare and curious shell, of transparent light horny texture, variegated with opake epidermis-like flakes, hitherto referred to the genus BuUraus, appears to belong rather to Jmpullaria. Species 81. (Mus. Cuming.) Ampullaeia Cumingii. Amp. testd subgloboso-ovatd, soUdiusculd, profundi umbilicatd, spird brevi, anfrac- tibus superne planiusculis, deinde convexis, subdiscoi- deis ; fulvo-cinered, fasciis angustis el lineis paucis rufescenlibus cingulatd; aperturd ovatd, effusd, labro columellari subincrassato. Cuming's Ampullaria. Shell subglobosely ovate, rather solid, deeply umbilicated, spire short, whorls rather flat at the upper part, then convex, somewhat dis- coid ; fulvous-ash, encircled with a few reddish nar- row bauds and lines ; aperture ovate, eifused, colu- mellar lip rather thickened. King, Zoological Journal, vol. v. p. 344. Hal). Island of Taboga, Panama. A solid shell, of somewhat discoid growth, with the aperture thickened and much eff'used. October, 1856. Anipidlaruf,B.im. Sowerly "Vincent J&rooks Im^. AMPULLARIA. Plate XVIII. Species 82. (Mus. Ciiniing.) Ampullakia prdnulum. Amp. testa globosd, subdiscoi- ded, profunde umbilicatd, spird breviusculd, acuminata, anfraclibus sitperue impresso-planis, deinde convexis ; livido-olivaced, lined fmcesceute obscure cingtdatd ; aperturd ovatd, labro columellari subeffiiso,fauce pal- lide aiirantid. The little plum Ampullakia. Shell globose, sub- discoid, deeply umbilicated, spii'e rather short, acu- minated, whorls impressly flattened round the upper part, then convex ; livid olive, obscurely encircled with a faint brown line ; aperture ovate, coluraellar lip rather effused, interior pale orange. Ilab. Xew Granada. Of the same typical outline as A. luteostoma, but less effused, and having a narrower umbilicus, with little ex- ternal painting except a fi\int line or two. Species 83. (Fig. a, b, Mus. Cuming.) .-Vmi'ULLaria Cubensis. Amp. testa subglobosd, suhpro- funde umbilicatd, spird exsertd, anfractibus rotundatis, lavibus; Uvido-cinered, fasciis angustis rufts regula- riter citigulatd ; aperturd ovatd, subexpamd. The Cuba Ampullakia. Shell subglobose, rather deeply umbilicated, spire esserted, whorls rounded, smooth ; livid ash, regularly encircled with narrow red bands ; aperture ovate, rather expanded. Hab. Cuba. The regularity of the red banils with which this species is striped, is rather a characteristic feature. Species 84. (Mus. Cuming.) Ampullakia luteostoma. Amp. testa orbiculato-veti- tricosd, subdiscoided, perampliter umbilicatd, spird breviusciild, acuminata, anfractibus superne subimpres- sis, deiiide rotundatis ; flavescente-fuscd, lineis brunneis duabiK vel tribus dislautibus cingulatd ; aperturd ovatd, labro subeffiiso,faHce aurantid. The yellow-mouth Ampullakia. Shell orbicularly ventricose, somewhat discoid, very largely umbili- cated, spire rather short, acuminated, whorls rather impressed round the upper part, then rounded ; yel- lowish-brown, encircled with tvvo or three distant brown lines ; aperture ovate, lip somewhat effused, interior orange. SwAiNSON, Zoological Illustrations, vol. iii. pi. 157. AmpullaritB pachjstoma and balteula, Philippi. Hab. Venezuela. ReadOy distinguished from the preceding species by its larger size and rougher epidermis-clad texture, the colu- mellar lip being less broadly reflected back. Species 85. (Fig. «, b, Mus. Cuming.) Ampullakia glauca. Amp. testa orbiculato-veutricosd, subdiscoided, ampliter umbilicatd, spird brevi, anfracti- bus superne planulatis, deinde plano-eonvexis ; fusces- cente, fasciis lineisqiie glauco-eastaneis dense cingulatd; aperturd ovald, ampld, labro columellari late effuso, fauce aurantid. The GLAUCOUS Ampullakia. Shell orbicularly ventricose, somewhat fiiscoid, largely umbilicated, spire short, whorls flattened round the upper part, then flatly convex ; pale brown, closely encircled with glaucous- chestnut lines and bands ; aperture ovate, large, co- lumellar lip broadly eft'used, interior orange. Jlelix glauca, Linnaeus, Mus. Uric. p. 667. Nerita effusa, Miiller. Helix oculus communis, Gmelin. Helix neritina, Gmelin. Bulimus I'ffusus, Bruguiere. .4mpullaria ejfusa, Swainson. Ampullaria Guyanensis, Gue'rin. Uab. ? A very characteristic species, distinguished by its shin- ing porcelain-like aspect and broadly effused reflection of the columellar lip, which, with the interior, is enamelled orange, the external surface of the shell being closely lined and banded with glaucous-chestnut. Fig. 86. (Mns. Cuming.) A variety of A. Pahcdinoides, represented at PL II. ig. 9, in which the whorls are more globosely convo- October, 1856. Ampidlaria., PI. XIX. ViTicent Brooks Jrr.p , AMPULLARIA. Fig. 87. (Mus. Cumiug.) A variety of A. compacta, represented at PI. XIY. Fio-. 02, Species 88. (Fig. a, b, Mus. Cuming.) Ampullaeia filosa. Amp. testa ovatd, mperforatd , spird brevi, apice plus minus erosd, anfractibus iupernc planx)-angulatis, striis elevatis undique filosk ; fulves- cente-casianed, fasciis aiiffustis rujis numerosis cbigu- l2. f. 1-3. Tlab. Kio Parana, La Plata ; D'Orbigny. The substance of this shell is rather more callous than usual, typical of a distinct section of the genus. Fig. 106. (Mus. Cuming.) The shell here representeel proves to be an oblong con- voluted variety o^ A. crassa, described at PI. I. Fig. ."). Species 107. (Fig. a, b, Mus. Cuming.) Ampullaria Physoides. Amp. testd semiglubosd, tennis- simd, vix umbilicatd, spird parvd, anfractibus convexis, longitudinaliter eleganter impresae undato - striatis, ultimo perinflato ; pallide fulvd, carneo tinctd, fasciis paucis rnfis obscuris cingulatd; aperturd ampld, labro tenue reflexo. The Physa-like Ampullaria. Shell semiglobose, very thin, scarcely umbilicated, spire small, whorls convex, longitudinally elegantly imprcssly wave-striated, last whorl much inflated ; light fulvous, flesh-tinged, en- circled with a few obscure linear red bands ; aperture large, lip thinly reflected. Bab. Pernambuco. Of the same typical form as A. Pernamb thinner and more inflated, and of a pale flesh vous colour. :, but Species 108. (Mus. Cuming.) Ampullaria saxea. Amp. testd oblongo-ovatd, solidiiis- culd, anguste obtecte mnlilicatd, spird subobtusd, an- fractibus superne subdepressis, obsolete angulatis, deinde rotundatis; olivaced; aperturd pyriformi, oblongd, labro columellai'i tenue reflexo. The stony Ampullaria. Shell oblong-ovate, rather solid, with a narrow covered umbilicus, spire rather obtuse, whorls a little depressed rouud the upper part, obsoletely angled, then rounded ; olive ; aperture py- rifornaly oblong, columellar lip thinly reflected. Ilab. ? An oblong-ovate shell, of rather solid texture, charac- terized by a faint depression round the upper wiiorls, causing a scarcely perceptible angle. November, 1856. AmpuOana.M.im. ^f#^.- ■fi i^. ^*: Sowei-Jjy rlfil.etltli^ '.'iriceiit "Etooks Imp^ AMPULLARIA. Species 109. (Mus. Hanley.) Ampullaria Lakgtllierti. Amj). lestd ovato-glohosd, anguste umbiUcatd, tenuicula, spird obtmd, anfrac- tibus rotundatis, concentrice plicato-striatis ; olivaceo- vmdi,fascm Uneariius mgricantibm cingulatd; aper- turd ovatd, subeffusd. Largilliert's Ampullaria. Shell ovately globose, nar- rowly umbilicated, rather thin, spire obtuse, whorls rounded, concentrically plicately striated; olive-green, encircled with blackish linear bands ; aperture ovate, somewhat effused. Philippi, Zeitschrift fiir Malac. 184S, p. 193. Hab. Madagascar; Largilliert. This shell, which we take to be Dr. Philippi's A. Lar- gilUerti, is the nearest allied to A. Layardi from Ceylou. Species 110. (Pig. «, h, Mus. Metcalfe.) Ampullaria bilineata. Amp. testa globosd, teniii, snb- inflatd, vix umbiUcatd, spird brevi, obtnsd, anfractibus convexis, lievibus, nitentibus ; limdo-fidvesaente,fasciis bilinearibus rufis duabus didantibus cingulatis ; aper- tiird ovatd, labro subeffuso. TuE two-lined Ampullaria. Shell globose, thin, ra- ther inflated, scarcely umbilicated, spire short, obtuse, whorls convex, smooth, shining ; livid-fulvous, en- circled with two distant red bi-lincAr bauds; aper- ture ovate, lip slightly effused. Hab. ? An interesting species from the collection of Mr. Met- calfe, light and globose, with a smooth, shining, livid- fulvous surface, encircled round the centre with a band of two reddish lines, and the same at the base. Species 41. (Fig. b, Mus. Hanley.) A fine characteristic specimen of the shell which we ventured to determine at PI. IX. Sp. 41, to represent A. famiata. Species 111. (Mus. Hanley.) Ampullaria depressa. Amp. testd ovatd, snbventncosd, iviperforatd, spird breviiisculd, anfractibus convexis, superiie subplamdatis ; Infco-olivaced, lineis viridibtis cingulatd; aperturd oblongo-ovatd, ad basin subsinuaid. The depressed Ampullaria. Shell ovate, subventri- cose, imperforated, spire rather short, whorls convex, rather flattened at the upper part ; yellowish-olive, encircled with green lines ; aperture oblong-ovate, somewhat sinuatcd at the base. Say, Exped. S. Peters, vol. ii. p. 264. ffab. ? This species differs from S. paludosa of the same author, in being of a lighter and more inflated structure, rather attenuated towards the base ; it is of a yellow-tinged olive colour, encircled witli green lines. Species 112. (Mus. Hanley.) A.MPULLARIA BUSEA. Amp. testd ovatd, subventricosd, ad basin attenuatd et effusd, imperforatd, spird brevius- culd, anfractibus superne subdeclivibus, deinde plano- convexis ; fmcescente-ftdvd, lineis numerosis rufo-oU- vaceis cingulatd; aperturd oblongo-ovatd. The box Ampullaria. Shell ovate, subventricose, at- tenuated and effused at the base, imperforated, spire rather short, whorls rather slanting at the upper part, then flatly convex ; brownish-fulvous, encircled with numerous reddish-olive lines ; aperture oblong- ovate. Hab. ? Resemiiling the former species in the contour of the aperture and absence of umbilicus, but more slanting ;md inclined to angularity next the suture. Species 113. (Mus. Hanley.) Ampullaria Hanleyi. Amp. testd turbinatd, tenid, pellucidd, anguste umbiUcatd, spird ampliter exsertd, anfractibus rottindatis, subangustis, ItBvibus; livido- fnlvd, lineis rufescente-fuscis cingulatd; aperturd par- viusculd, snbcirculari, labro columellari rejlexo. Hanley's Ampullaria. Shell turbinated, thin, trans- parent, narrowly umbilicated, spire largely exserted, whorls rounded, rather narrow, smooth ; livid-fulvous, encircled with red-brown lines ; aperture rather small, nearly circular, columeUar lip reflected. Uab. ? A semi-transparent turbinated species, quite distinct from any that has preceded it. Arnpullaria,M.JXIV. Sowerty dd.etlith Yincent Brooks Imp ■ AMPULLARIA. Species Hi. (Mus. Hanley.) Ampullakia testudinea. Jmp. testa, ovato-ventricosd, teiiui, anguste umhilicatd, spird mediocri, anfractibvx convexis, lavibus, niieiUibus ; fuhescente-citwred, fas- ciis linehqueferrugineo-fuscescentibiis cingidatd ; aper- turd ovatd, labro dmplici. TuE TORTOISE-SHELL Ampullaria. Shell ovatcly ven- tricose, thin, narrowly umbilicated, spire moderate, whorls convex, smooth, shining; fiilvous-ash, en- circled with rust-browu bands and lines ; aperture ovate, lip simple. Hub. ? A shell of light substance, much painted with light rust-brown bands and lines. Species 115. (Fig. a, i, JIus. Hanley.) Ampullaria Linn.«i. Amp. testa mhovato-turbinatd, ventricosa, siibangude umbilicatd, spird exsertd, ati- fractibus rotundatis, lavibus, nitentibtis, ad stcturam rude hnpressis ; livldo-glaucd, fasciis angustis rosaceis cingulatd; aperturd ovatd, labro subeffuso, LiNNAUs's Ampullakia. Shell ovately turbinated, ventricosc, ratlier narrowly umbilicated, spire ex- serted, whorls rounded, smootli, shining, somewhat rudely impressed at the suture; livid-glaucous, en- circled with pinkish naiTow bands ; aperture ovate, lip slightly efi'used. Philippi, Kuster Conch. Cab. Ampullaria, p. 62. pi. 30. f. 6. Huh. ? Of a livid-glaucous colour, smooth and shining, encircled with pale pink linear bands. Species 116. (Fig. a, b, Mus. Hanley.) Ampullaeia citreum. Amp. testa oblongo-globosd, siib- ampliter umbilicatd, spird mediocri, anfractibus ad suturam impressis, deiiide convexis, obscure malleatis, circa ■umUlicum- obttise angulatis ; pallide fulvd out virescente, interdum olivaceo fasciatd; aperturd pyri- formi-oblongd, intus aurantio-rufd. The citron Ampullaria. Shell oblong-globose, rather largely umbilicated, spire moderate, whorls impressed at the suture, then convex, obscurely uialleated, ob- tusely angled round the umbilicus ; pale-fulvous, or greenish, sometimes banded with olive ; aperture pyriformly oblong, orange-red within. Uah. ? A fine species, of very distinct character, peculiarly ob- tusely angled ro\uid the umbilicus. Species 117. (Fig. a, b, Mus. Cuming.) Ampullaria picta. Amp. testa oblongo-ven-tricosd, am- pliler prof mule umbilicatd, spird mediocri, anfractibus ad suturam planulatis, deinde plano-convexis, circa umbilicum obtuse angulatis; virescente, fasciis lineisque olivaceis numerosis cingulatd ; aperturd oblongo-ovatd, intus aurantio-miniaid. The painted Ampullaria. Shell oblong-ventricose, largely deeply umbilicated, spire moderate, whorls rather flattened at the suture, then flatly convex, ob- tusely angled round the umbilicus; gi-eenish, en- circled with numerous olive bands and lines ; aperture obloug-ovate, orange-vermilion within. IM. ? Closely allied to the preceding species, especially in the peculiar obtusely angled structure of the whorl around the umbilicus, but uniformly distinct in all its stages of growth in general contour. December, 1856. AmpuUaria,Fl. XSY. Sowoiry dd.eLMi Vincent Biooks Iinp, AMPULLARIA. Species 118. (Mus. Metcalfe.) Ampollaria calioinosa. Amp. testa globosa, subpro- ftinde umbilicata, spird mediocri, anJractUms mperm plano-declivibus, medio gibbodusculis, tenue plicato- striatis et malleatk ; nigricante-olivaced, prope mtu- ram fulvescente ; aperturd ovatd, labro vix rejlexo. The gloomy Ampullaria. Shell globose, rather deeply umbilicated, spire moderate, whorls flatly slanting round the upper part, somewhat gibbous in the middle, finely plicately striated and malleated ; dark olive, yellowish next the suture ; aperture ovate, lip scarcely reflected. Uab. ? The most characteristic feature of this species is the gibbous expansion of the whorls, after flatly sloping from the suture. Species 119. (Fig. a, b, Mus. Metcalfe.) Ampullakia Metcalfei. Amp. testa compresse ovatd, subtus excavatd, vix umbilieatd, spird parvd, acumi- nata, anfraclibus snperne obtuse angulatis, deinde planO'Convexis, longitudinaliter striatis; fulvescente- olivaced, nigra irregidariter faseiatd; aperturd am- pliter expamd, labro columellari recurvo, aurantio- tincto. Metcalfe's Amptillaeia. Shell compressly ovate, ex- cavated beneath, scarcely umbilicated, spire small, acuminated, whorls obtusely angled round the upper part, theu flatly convex, longitudinally striated ; yel- lowish-olive, irregularly banded with black ; aperture largely expanded, columellar lip recurved, orange- tinted. Hob. ? The only species similar to this in form is the A. Lymnce- (fformis, which differs, among other essential characters, in being largely umbilicated. Figs. 11 b, and 131. (Mus. Metcalfe.) The shells here figured, and which should have been numbered \i b and 13 c, are fine characteristic examples of Sp. 13, A. pill/la, a species described at PI. III. from an obscure specimen in an immature stage of growth. Species 120. (Fig. a, b, Mus. Cuming.) Ampullabia miltocheilus. Amp. testd globosd, solidd, subampUter profunde umbilicata, spird parviuscald, anfractibus rotundatis, spiraliter corrugatis et mallea- tis, ad suturam declivibus ; olivaced, ferrugineo hie illic tinctd et vittatd ; aperitird ovatd, labro solide reflexo, i7ite>ise aurantio-miniato. The bed-lipped Ampullabia. Shell globose, solid, rather largely deeply umbilicated, spire rather small, whorls romided, spirally wrinkled and malleated, slanting at the suture ; olive, here and there stained and filleted with rast ; aperture ovate, lip solidly re- flected, deep orange-vermilion. Hub. Province of Chiapes, Mexico ; Ghiesbrecht. A fine solid rust-stained oKve shell, with a character- istic orange-vermilion lip. December, 1856. Amjnillana.PI im. ^ Sov\Tscb\- M. et ixh % 'fricant Sroob Imp. AMPULLARIA. Species 122. (Fig. a, b, c, Mus. Cuming.) Ampiu,l.\ria elegans. Amp. testa turbimtd, solidd, vu umhilicatd, spird mbexmrtd, atifractibm convexis, sub- an^ustis, prope suturam planatis, Icevibus ; lutescente- aU)d,fa/icm lineisque rubido-fusch cingulnld ; apertura Totundato-omtd, panimcnld, fauce alba. The elegant Ampullaria. Shell turbinated, solid, scarcely urabilicated, spire rather exserted, whorls convex, rather nan-ow, flattened next the suture, smooth; yellowish-white, encircled with red-brown bauds and lines ; aperture rotundately ovate, rather small, interior white. D'Orbigny, Mag. de Zool. 183.5, p. 33, Moll. Voy. dans I'Arae'r. Me'rid. p. 378. pi. .52. f. 4 to 6. Hab. Rio Madeira, Tributary of the Amazon, Bolivia; D'Orbigny. This species chiefly differs from A. Roissyi, to which it is nearest allied, by its broader form of convolution, and in the more depressed growth of the whorLs next the Species 123. (Mus. Cuming.) Ampullaria Ghiesbrechtii. Amp. testa globosd, soli- diusculd, profundi umbilicatd, spird parvhisculd, de- pressd, ajiice acuta, atifractibm rolundatis, undique deamatim ma/leatis ; intense olivaced ; apertura pyri- formi-ovatd, labro ejfuso, vivide rubido-miniato. Ghiesbeecht's Ampullaria. Shell globose, rather solid, deeply umbilicated, spire rather small, depressed, sharp at the apex, whorls rounded, everywhere de- cussately malleated ; dark olive; aperture pyriformly ovate, lip effused, deep ruddy vermilion. llab. Province of Chiapes, Mexico ; Ghiesbrecht. A remarkably fine species, of solid globose form, cha- racteristically malleated throughout, and having cuous deep red aperture. Species 124. (Fig. a, b, Mus. Cuming.) Ampullaria fumata. Amp. testa semiglolmd, obliqui eff'iisd, angusfe umbilicatd, spird pared, acutd, anfrac- tibus convexis, lavibtis, ultimo multo maxima ; olivaced, adsuturamfulvescente, lineis nigricantibus cingitlatd ; apertura ampld, labro plam-expanso, fauce fumm- fusco tinctd et lintatd. The smoked Ampullaria. Shell semiglobose, obliquely effused, narrowly umbilicated, spire small, sharp, whorls convex, smooth, the last one much the largest ; olive, fulvous at the suture, encircled with dark lines; aperture large, lip flatly expanded, in- terior stained and lineated with smoky brown. Hab. Province of Chiapes, Mexico ; Ghiesbrecht. Peculiarly distinguished by the flat expanded formation of the lip, and the painting of the interior, which is stained with shining smoky brown lines and tint. Species 125. (Mus. Cuming.) Ampullaria dira. Amp. testa subglobosd, minute an- gusfe umbilicatd, anfractibus rotundatis, ad suturam plannlatis, rude striatis; olivaceo-nigricante ; aper- turd ovatd, labro simplici. The dismal Ampullaria. Shell subglobose, minutely narrowly umbilicated, whorls rounded, rather flat- tened at the suture, rudely striated: olive-black; aperture ovate, lip simple. Uab. ? A dull rudely striated blackish-olive sjjecies, of the simplest form. December, 1856. Ampiif/(m(i.PlJ\yn. 0 % % # .Stwri'ljy- .Wl.rt .hiL ^ \'iiu'rnt jjioofo Imp AMPULLARIA, Plate XXVII. Species 126. (Mus. Hanley.) Ampvllaria Planoebula. Amp. testa dkcoided, am- pliter nmbilicafd, spird Ireoi, sicbimmersd, mifractibus aitffustis, couvexk, lavibus, ad mturam depressis ; lu- tescente-albd, fasciis lineisque castaneis cingulatd ; aperturd lunato-circulari, labro wnplici. The little Planorbis Ampdllaeia. Shell discoid, largely umbilicated, spire sliort, subimmersed, whorls narrow, couvex, smooth, depressed at the suture; yellowish-white, encircled with chestnut bands and lines ; aperture lunar-circular, lip simple. Philippi, Kuster, Conch. Cab. Jmp. p. 26. pi. 7. f. 3. //„/,, . ? A small species, distinguished from all others of the sjenus by its discoid Fto/iorbii-Uke growth. Species 127. (Fig. a, b, Mus. Cuming.) Ampullabia decussata. Amp. testa mbglobosd, arujuste profundi umbiUcatd, spird obtiisd, erosd, anfracUbus angustis, converis, striis tenue decussatis, ad suturam late planatis ; livido-oastaned, lineis fulvescentibus cingulatd, ad svlttram. fulvescente ; aperturd ovatd, parviusculd, labro simpliei. The decussated Ampullaria. Shell subglobose, nar- rowly deeply umbilicated, spire obtuse, eroded, whorls narrow, convex, finely decussated with striae, broadly flattened at the suture ; livid-chestnut, encircled with fulvous lines, fulvous at the suture ; aperture ovate, rather small, lip simple. MoRiCAND, Mem. Soc. Phys. de Geneve, vol. vii. p. 41-5. pi. 2. f. 26, 27. riab. Brazil. A rather narrowly convoluted shell, decussated through- out with fine stria', especially characterized by a broad flattened development of the whorls next the suture. Species 12S. (]\Ius. Hanley.) Ampullaria Swainsoni. Amp. testa oblongo-ova Id, an- gusti profundi uMbilkatd, spird mibexsertd, anfracti- bus convexis, undique minute pnncfulatis ; lutescente- olivaced, fasciis numerosis angustis viridibns cingulatd; aperturd jn/riformi-ovatd, labro efuso,fauce albicante. Swainson's Ampullaria. Shell oblong-ovate, narrowly deeply umbilicated, spire rather exserted, whorls con- vex, minutely punctured throughout ; yellowish-olive, encircled with numerous narrow green bands ; aper- ture pyrifornily ovate, lip effused, interior whitish. Ampullaria fasciata, Swainson, Zool. lllus. Second Series, vol. ii. pi. 61.. Ampullaria Swainsoni, Philippi. Hab. ? Distinguished from its congeners by its bold oblong- ovate form of convolution and continuous encircling of narrow bands. Species 129. (Fig. a, b, Mus. Hanley.) AMPULi,ARi.i balanoidea. Amp. tesid ovatd, solidd, ob- tecte umbilicatd, spird subexsertd, oblttsd, atifractibus rotundatis, subangustis, tetiuissime granoso-striatis, ad suturam plano-declivibus ; nigricante-castaned ; aper- turd parviusculd, ovatd, labro effusd, columelld calloso- reflexo, aurantio tinctd. The acorn-like Ampullaria. Shell ovate, solid, with a covered umbilicus, spire rather exserted, obtuse, whorls rounded, rather narrow, very finely granosely striated, flatly slanting at the suture ; blackish-chest- nut ; aperture rather small, ovate, lip effused, colu- mella callously reflected, orange-tinted. i t-J '' ' Gould, MS., Mus. Hanley. r- ■>'' 'it"-^-^' Hab. Liberia, West Africa. Very closely allied to A. Plata which follows, but of a more obliquely effused form, with a more exserted spire. Species 130. (Mus. Cuming.) Ampullaria Plat.*. Amp. testa ovatd, solidiusculd, im- perforatd, spird obtuse exsertd, anfractibus subangustis, convexis, minute granoso-striatis, ad suturam obtuse planatis; lutescente-eastaned, fa-mis angustis fuscis cingulatd ; aperturd ovatd, labro simpliei, columelld calloso-reflexd, aurantio-tifictd. The Plate Ampullaria. Shell ovate, rather solid, im- perforated, spire obtusely exserted, whorls rather naiTow, convex, minutely granosely striated, ob' tusely flattened at the suture ; yellowish-chestnut encircled with narrow brown bands ; aperture ovate lip simple, columella callously reflected, orange-tinted Helix Plata, Maton, Trans. Liim. Soc. 1809, vol. x. pi 24. f. 16, 17. Ampullaria Plata, D'Orbigny. Ampullaria Naticoides, D'Orbigny. Ampullaria cyclostoma, Spix. Hab. Eiver Plate. Distinguished from the preceding species, from Liberia, to which it is singularly closely allied, by its narrower form of convolution and banded painting December, 1856. V^ .c^ V- rf-'V ^.'V4 f:^:- - ^-: ^^fr- % ■™py JmpuUariaM.ZXYIII. # # So;.-:Tir,- i-IrtM; ^ancrait. Bxoolu; Iiiip AMPULLARIA. Plate XXVIII. Species 131. (Fig. a, h, Mus. Cuming.) AMPULLARIA atjRostoma. Amp. testd globoso-turbinatd, vix umhilicatd, spird stthexsertd, anfradihus rotunda- tis, rugoso-striatis; nigricante-castaned ; aperttird ova- td, lalro vifide aurmUio-rufo. The golden-mouth Ampullauia. Shell globosely tur- binated, scarcely umbilicated, spire somewliat ex- serted, whorls rounded, roughly striated; blackish- chestnut ; aperture ovate, lip bright orange-red. Lea, MS., Mus. Cuming. ^ U A globosely turbinated shell of solid structure and dark chestnut colour, with a pretty bright orange-red lip. 132. (Fig. a, b, Mus. Cuming.) Ampullaeia nux. Amp. testd oblongo-conoided, solidd, vix icmbilicatd, spird obtuse exsertd, m/fractibus con- vexis, ad suturam- decUvibus et obsolete plicato-corru- gatis ; ftdvo-castaued ; aperturd ovatd, parviusculd, labro columellari calloso-reflexo. The nut Ampullaria. SheU oblong-conoid, solid, scarcely umbilicated, spire obtusely exserted, whorls convex, slanting and obsoletcly plicatcly wrinkled at the suture ; fulvous-chestnut ; aperture ovate, rather small, colmneDar lip callously reflected. Hab. Bombay. A solid fulvous-chestnut shell of an oblong conoid form, with the columellar lip rather unusually callously reflected. Species 133. (Fig. a, b, Mus. Cuming.) Ampullaria aueifoemis. Amp. testd compresse ovatd, oblique eontortd, Lymneeeeformi, tenui, pro/unde umhi- licatd, spird parvd, anfraciibus convexis, striatis et malleatis, superne obsolete obtuse angulatis, anfractu ultimo conspicue effuso ; intense olivaced; aperturd trigono-ovatd, basi rotundato-expansd, ccerulescente. The eae-shaped Ampullaria. Shell compressly ovate, obliquely twisted, iymj«<2>a-shaped, thin, deeply um- bilicated, spire small, whorls convex, striated and malleated, obsoletely and obtusely angled round the upper part, last whorl conspicuously eft'used ; dark olive; aperture triangularly ovate, rotundately ex- panded at the base, bluish. Hab. Honduras. The form of this species is quite peculiar, the last whorl being unusually obhquely eft'used, more particularly towards the base. Species 134. (Fig. a, b, Mus. Cuming.) Ampullaria Spkucei. Amp. testd oblongo-conoided, so- lidd, imperforatd, spird plus minus erosd, anfractibus declivi-convexis, lavibus, hand nitetitibus; fulvo-oli- vaced, prope apertttram obscure riifo-fasciatd; aper- txird ovatd, parviusculd, labro effuso, columella dense callosd. Spruce's Ampullaria. Shell oblong-conoid, solid, im- perforated, spire more or less eroded, whorls slant- ingly convex, smooth, not shining; fulvous-olive, faiutly red-banded near the aperture ; aperture ovate, rather small, lip efl'used, columella thickly callous. Hab. Tarapoto, east side of the Andes ; Spruce. This species has a peculiar solid Littorina-]ike aspect, with the coluDjellar lip callously reflected over the place of the umbihcus. Fig. 13.5. (Mus. De Burgh.) This interesting shell has been selected from the col- lection of Mi-s. De Burgh, for the sake of giving a more characteristic illustration of A. zonata of Spix than that represented at Pi. XII. December, A M IMJ L L A K I A . adusta, Rivvr III. Amazonica, Rfieve XII. ampullacen {Hdi.r), Linn X. aperta, PhiUppi XIX. aiiriformis, Reevi' XXVIII. aurostoma, Jj-a XXVIII. balanoidca, OonU XXVII. balteata, Philippi XVIll biliueata, Rccne XXIII. bulla, Reme XXII, Bridgesii, Reeve XI. Brownii, Jay I. buxea, Reeve XXIII. caliginosa, Reeve XXV. canaliculata, Lamarck XVII. carinata, Simdnson XIII. Cassidiformis, Reeve XII. Celebensis, Quoy X. cerasum, Hartley XXI. cinerea, Reene XX. citreum, Reeve XXIV. Columbiensis, Sntverby V. compacta, Reeve XIV. complicata, Reeve XIX. oonica, Wood II. cornucopia, Reeve I. corrugata, Svvainson X. crassa, Swainson I. Cubensis, Reeve XVIII. Cumingii, King XVII. cyclostonm, Spix XXVII. cuprina, Reeve I. decussata, Moricnnd XXVII. depressa. Say XXIII. dira. Reeve XXVI. Dolioides, Reeve XVI. doUum, Philippi IV. Dysoni, Hanley . XI. effusa, Swaiusori XVIII. electrina. Reeve XX. elegans, IfOrb'ujny XXVI. encaustica, Reeve XVI. orytlirostoma. Reeve XI J I. fasciata, Reexe IX. fasc'mta, Lamarck X. /asc!a/!(7., Swainson XX VII. ligulina, Spix II. u filosa, Reeve .... XIX. 88 55 Ilalilis, Reeve . . . VII. 31 48 fnniata. Reeve . . . XXVI. 124 90 Gliiesbrechtii, Reeve .... XXVI. 123 133 gigas, Spix ... I. 3 131 glauc-- Sowxby aelfitlitli TBncort aroob Imp CANCELLARIA, Species 5. (Fig. a, b, Mus. Cuming.) Cancellaria bullata. Cati. testa ovato-conoided, tenui, in/laid, ampliter 'profundi mibilicatd, spird exsertd, turritd, mifractibm superne late impresso-canalietdaiis, ad angidicm. rude oblique nodulatis, deinde convexis, obtuse rttgoso-liratis et striatis ; sordide falvd ; aper- turd ingono-ovatd, basi sinuatd, labro columeUari late rejlexo, pUcis duabus, parvis. The bubble-like Cancellaria. Shell ovately conoid, thill, inflated, largely deeply umbilicated, spire ex- serted, turreted, whorls broadly irapressly channelled roimd the upper part, rudely obliquely noduled at the angle, then convex, obtusely wrinkle-ridged and striated; dirty fulvous; aperture triangular-ovate, sinuated at the base, colunicllar lip broadly reflected, plaits two, small. SowERBi', Pro. Zool. Soc. 1832, p. 51. Hal. Gulf of Nicoya, Central America (from a muddy bottom in twelve fathoms) ; Cuming. Distinguished chiefly by its light inflated growth and large excavated umbilicus. Species 6. (Fig. a, 5, Mus. Cuming.) Cancellaria nodxjlifera. Can. testa ovato-venirkosd, subjn/riformi, imperforatd, basi contorto-recurm, spird turritd, anfraciibus superne excavato-canaliciilatis, deinde convexis, longitudinaliter oblique costatis, liris angustis nodulatis confertim spiraliter decussatis ; luteo-fulvescente, fa^cid angustd albidd versus basin cingulatd ; aperturd pyriformi-ovatd, plicis duabus, mittutis. The noduled Cancellaria. Shell ovately ventricose, somewhat pear-shaped, imperforated, twistedly re- curved at the base, spire turreted, whorls excavately channelled at the upper part, then convex, longitu- dinally obliquely ribbed, closely spirally decussated with narrow noduled ridges ; yellowish-brown, en- circled with a naiTOw whitish band towards the base ; aperture pyriformly ovate, plaits two, very small. Sowebby, Tankerville Catalogue, Appendix, p. 15. Cancellaria imperialis, Michelin. Hab. Japan. The whorls of this species are rather broadly excavately channelled as in the preceding, but at the base they are closely convoluted into a twisted recurved extremity, leaving no trace of an umbilicus. Species 7. (Mus. Cuming.) Cancellaria obesa. Can. testa ovatd, erassd, ponderosd, imperforatd, spird breviusculd, acuminatd, anfractibus convexis, superne declivibus, lavibus, obscuri spiralitei- striatis versus apicem, minute reticulatis ; albidd, au- rantio-fmco pallide nebulatd; aperturd oblougd, sub- angustd, superrie sinuatd, fauce validissime liratd, pli- cis duabus, crassissimis, prominentibiis. The stout Cancellaria. Shell ovate, thick, ponder- ous, imperforated, spire rather short, acuminated, whorls convex, slanting at the upper part, smooth, obscurely spirally striated towards the apex, minutely reticulated ; whitish, faintly clouded with orange- brown ; aperture oblong, rather narrow, sinuated at the upper part, interior very strongly ridged, plaits two, very thick, prominent. SoWERBY, Pro. Zool. Soc. 1832, p. 52. Hab. Gulf of Dulce, Central America (dredged from the depth of fifteen fathoms) ; Cuming. This fine species, of which two specimens in a young state were brought to Mr. Cuming from Puerto Potrero, is distinguished by its obtuse growth and prominently developed columellar plaits, the surface of the last whorl being smooth, whilst the earlier whorls are finely reticu- lated. Species 8. (Fig. a, b, Mus. Cuming.) Cancellaria Cassidiformis. Can. testd ovato-ventri- cosd, pyriformi, imperforatd, spird brevi, acuminatd, anfractibus spiraliter rugoso-striatis, ad suturam pro- fundi anguste canaliculatis, deinde concavis et nodoso- angulatis, nodis submuricatis ; aurantio-fulvd ; aper- turd oblongo-ovatd, subampld, labro columeUari re- curvo, late expamo, plicis duabus, acutis. The Cassis-shaped Cancellaria. Shell ovately ven- tricose, pear-shaped, imperforated, spire short, acu- minated, whorls spirally wrinkle-ridged, deeply nar- rowly channelled at the suture, then concave and nodosely angled, nodules rather prickly ; orange- fulvous; aperture oblong, rather large, columellar lip recurved, widely spread, plaits two, sharp. SowERBY, Pro. Zool. Soc. 1832, p. 53. Hab. Panama (j'oung specimens dredged from a sandy muddy bottom, at the depth of sixteen fathoms) ; Curaing. Allied to C nodulifera, but differing by its more bul- bous inflated proportions, less twistedly recurved base, and less exserted spire. November, 1856. ^ffm CcahrAlhaia-, PI. Ill- .J^ w Sowerly SeL-etith ^&lcen^ Ikooks Imp CANCELLARIA. Plati; til Species 9. (Fig. a, b, .Miis. Cuming.) ('.4.NCELLARIA UNmiLAT.\. Cati. tesld subaiigusti tuiritd, imperforatd, spird acute acuminaid, anfractibus spira- Uter iinean-snlcatis, longitudinaliter cosiaiis, superne planidatis, costis ad aitgnlum suhnodatk ; fulvo-spa- diced, obscure fa^ciatd ; aperturd parvd, plicis duabus mimttis. Thk waved Cancellaria. Shell rather narrowly tur- reted, imperforated, spire sharply acuminated, whorls spirally linearly grooved, longitudinally ribbed, rather flattened at the upper part, ribs foiully noduled at the angle ; fulvous-fawn, obscurely banded ; aperture small, plaits two, very small. SowEUBY, Pro. Zool. Soc. 1818, p. 136. Hab. Tasmania. Of ail erect sharply turrcted form, ribbed throughout, the ribs being somewhat distant and slightly obliquely Species 10. (Fig. a, b, Mus. Cuming.) Cancellaria similaris. Cati. tedd compresse ovald, minuti umhiUcatd, bast contortd, spird brev'msculd, acuminata, anfractibus subplanulato-convexis, hie illic varicosis, obliqui midato-coslatis, funiculis spiralibm eleganter cancellatis ; ccerulescente-alid, rufo-fusco fasciutd; aperturd parvd, fauce valide liratd, plicis tribus, acutis. The similar Cancellaria. Shell compressly ovate, minutely umbilicated, twisted at the base, spire short, acuminated, whorls rather flatly convex, here and there varicose, obliquely wave-ribbed, elegantly can- cellated with spiral cords ; bluish-white, banded with red-brown ; aperture small, interior strongly ridged, plaits three, sharp. SoTVERBY, Conehological Illustrations, No. 41. f. 38. Jlab. Senegal. Of precisely the same typical character as C. cancellata, from which species it difi'ers specifically by its uniformly smaller size antl finer sculpture. slantingly angled at the upper part, ribs noduled at the angle; fulvous, blotched with red; aperture rather small, plaits three, moderate. Deshayes, Encyclopedic Mcthodique, Vers, vol. ii. p. 185. Cancellaria TrUouis, Sowerby. Hab. Cagayan, Island of Mindanao, Philippines. A fine solid angularly ribbed species, of bright fulvous colour, splashed with red. Species 12. (Fig. a, b, Mus. Cumiug.) Cancellaria elegans. Can. tesidfmiforml-omtd, eras- sd, imperforatd, spird conoideo-acumiuatd, anfractibus plano-convexis, undirjue eleganter granoso-retieulatis, ad suturam anguste angulatis ; albidd, rifo-spadiceo fasciatdet variegatd ; aperturd parviusculd, plicis tri- bus, mediocribus. The elegant C.\-NCELLaria. Shell fusifonuly ovate, thick, imperforated, spire eonoidly acuminated, whorls flatly convex, everywhere elegantly granosely reticu- lated, narrowly angled at the suture ; whitish, banded and variegated with reddish-fawn; aperture rather small, plaits three, moderate. Sowerby, Genera of Shells, f. 3. Hab. Island of Ticao, Philippines (dredged from sandy mud, at the depth of six fathoms) ; Cuming. This fine species differs from the G. asperella, to which M. Deshayes refers it, in being of a more acuminately fusi- form growth, more elegantly sculptured, and in not being excavatclv cliaiiiielled at the suture. Species 11. (Fig. a, b, Mus. Cuming.) Cancellaria Spenoleuiana. Can. testa fusiformi-tur- ritd, imperforatd, spird acute exsertd, anfractibus lon- gitudinaliter oblique costaiis, spiraliter lineari-sulcatis, supenie declim-atigulatis, costis ad angulmn nodatis ; fulvd, rufo-maculatd ; aperturd parviusculd, plicis tribus, mediocribus. Spengler's Cancellaria. Shell fusiformly turreted, imperforated, spire sharply exserted, whorls longi- tudinally obliquely ribbed, spirally linearly grooved, Species 13. (Fig. a, b, Mus. Cuming.) Cancellaria cancellata. Can. testd compresse ovald, subfusiformi, imperforatd, hie illic varicosd, basi con- tortd, spird breviusculd, acutd, anfractibus convexis, oblique costatis, liris angustis spiralibus cancellatis ; albidd, fusco variegatd, fasciis duabus castaneis cin- gnlatd ; aperturd pared, fauce valide liratd, plicis tribus, prominentibus. The cancellated Cancellaria. Shell compressly ovate, somewhat fusiform, imperforated, here and there varicose, twisted at the base, spire rather short, sharp, whorls convex, obliquely ribbed, cancellated with narrow spiral ridges ; whitish, variegated with brown, encircled with two chestnut bands ; aperture small, interior strongly ridged, plaits three, promi- nent. Foluta cancellata, Linnseus, Syst. Nat. (12th edit.) p. 1191 . Cancellaria cancellata, Lamarck. Hab. Mouth of the Gambia, West Africa. This well-known species partakes largely of the cha- racter of certain species of Triton. iber, 1836. Canc^UciruVj TIW. t\ Sovreriy da. «LliQi lucent ftccoks imp, CANCELLARIA, Species 14. (Fig. a, b, ilus. Cuming.) Cancellaria pyrum. Can. testa omto-pyriformi, solidd, imperforata, spird hrevissima, subirmnersd, valide can- cellald, anfractu idtimo rotundato, Icevi, ad basin stri- ata; fako-fuscescente ; aperinrd oblongd, angmtd, co- litmelld stiperne late callosd, ad basin granoso-corru- gatd, plicis iribiis, supremd aculd, promin-eiUe. The pear Cancellauia. Shell ovately pyriform, solid, imperforated, spire very short, slightly immersed, strongly cancellated, last whorl rounded, smooth, striated at the base ; fulvous-brown ; aperture ob- long, narrow, columella broadly callous at the upper ])art, granosely wrinkled at the base, plaits three, the uppermost sharp and prominent. Adams and Eeeve, Zool. Voy. Samarang, JIoU, p. 42. pi. 10. f. 16. Hab. China Sea. A solid pear-shaped bulb-like species, closely allied to C. bulbidus, but of a distinct general form. Species 15. (Fig. 15 a, b, and 16 a, b, Mus. Cuming.) Cancellaria Buccinoides. Can. testd fmiformi-ob- lo/igd, imperforata, spird acute turritd, an/ractibits coiwexis, siiperne anguste angulatis, coslis longitudina- libus twdosis obliqiik lirisque latia spiralibus widique rude decussatis ; Uvido-carned aut fused, obscure fas- ciatd ; aperlurd ovala, fiupenie sinua/d, plicis duabus, mediocribns. The Buccinum-like Cancellauia. Shell fusiformly oblong, imperforated, spire sharply turreted, whorls convex, narrowly angled at the upper part, rudely decussated throughout with oblique longitudinal no- dose ribs, and broad spiral ridges ; livid tlesh-colour or brown, obscurely banded ; aperture ovate, sinuated at the upper part, plaits two, moderate. SowERBY, Pro. Zool. Soc. 1832, p. 54. Hab. Ileal Llejos, Iquiqui, Callao, Puerto Potrero, Central America (dredged from a sandy muddy bottom, in from seven to fifteen fathoms) ; Cuming. This species varies considerably in colour, but is always distinguished by the same characteristic rudely decussated sculpture. Species 17. (Fig. n, h, Mus. Cuming.) Cancellaria asperella. Can. testa oblongo-ovatd, im- perforatd, spird exsertd, anfractibus convexis, ad •!;«- turam anguste excavatis, liris strikque scabris, rude decussatis; rufescente-fuscd, obscure fasciatd ; aper- turd ovald, colitmelld arcuatd, plicis tribus, fortius- culis. The rasp Cancellauia. Shell oblong-ovate, imper- forated, spire exserted, whorls convex, narrowly ex- cavated at the suture, rudely decussated with rough ridges and strise ; reddish-brown, obscurely banded ; aperture ovate, columella arched, plaits three, rather strong. Lamarck, Anim. sans vert. vol. ix. p. 402. Hub. Baclayon, Island of Bohol, Philippines (dredged from the depth of seventeen fathoms) ; Cuming, [u external aspect this species reminds one of the Pur- pura lapiUns, so far as regards its general form. The surface is peculiarly fretted with scabrous striaj. Species 18. (Fig. a, b, Mus. Cuming.) Cancellaria ovata. Can. testd subgloboso-ovald, solidd, ponderosd, imperforatd, spird brevissimd, acute acu- minatd, anfractibus plano-convexis, spiraliter lineari- sulcatis, superui subcorrugatis, versus apicem reticu- latis ; rufescente-fuscd; aperturd suiangustd, fauce valide liratd, plicis duabus, prominentibus. The ovate Cancellaria. Shell subglobosely ovate, solid, heavy, imperforated, spire very short, sharply acuminated, whorls flatly convex, spirally linearly grooved, somewhat wTinkled at the upper part, re- ticulated towards the apex ; red-browu ; aperture rather narrow, interior strongly ridged, plaits two, prominent. SowERBY, Pro. Zool. Soc. 1832, p. 53. Hab. St. Elena, West Columbia (dredged from a sandy bottom, in eight to ten fathoms) ; Cuming. Allied to C. reticulata and acuminata, but fully dis- tinguished by its more solid obese form and smooth ex- terior. November, 1856. CajweUarioy^ Ft. V. '\ ^%^- %\ ^ % Scwsrby del f^ Irli . \^ncent Brooks Imp CANCELLARIA. Species 19. (Fig. a, h, Mus. Curaiug.) Cancell.^eia scalata. Can. testa subpyramidali, mi- nute umhilkatd, spird exsertd, anfractibus ad suturam mpresso-excavatis, undique dense concentrice costatis, costU suUiliter nodulatis ; roseo-spadiced, uoduUs al- bidis ; aperturd parvd, plicis tribtis, parvis. The staiecase Cancellaria. Sliell subpyramidal, mi- nutely umbilicated, spire exserterl, whorls impressly excavated at the suture, closely concentrically ribbed throughout, ribs finely noduled ; rose-fawn, nodules whitish ; aperture small, plaits three, small. SowEKBY, Conch. lUus. f. 27. Thesaurus Conch, vol. ii. p. 4.55. pi. 93. f. 36. Hub. Ceylon; Dr. Siebold. Sculptured throughout with delicate close-set ribs, finely noduled at distant intervals, the shell being of a subtrans- parent pinkish-fawn colour, inclining more to rose towards the apex. Species 20. (Fig. a, b, Mus. Cuming.) Cancellaria granosa. Can. testa subpyramidali, ob- tecte umbilicatd, spird acuminato-turritd, anfractibus superne anguste planatis, deindi longitudinaliter cos- tatd, liris obtuse granatis spiraliter decussatis ; Jh- vescente-spadiced, rufo sparsim macidatd ; aperturd parviusculd, plicis tribua, parvis. The grained Cancellaria. Shell subpyramidal, with a convex umbilicus, spire acuminately turreted, whorls naiTOwly flattened round the upper part, then longi- tudinally ribbed, spirally decussated with obtusely grained ridges ; yellowish-fawn, sparingly blotched with red ; aperture rather small, plaits three, small. Sowerby, Conch. lUus. f. 16, 17. Hab. Peru. The surface of this species is but indistinctly obtusely grained, of a yellowish-fawn colour, sparsely blotched round the angle of the whorls with reil. Species 21. (Fig. a, b, Mus. Cuming.) Cancellaria Eburnvepormis. Can. lestd oblongd, im- perfoi-atd, spird acmninalo-exsertd, anfractibus superne leviter concavo-impreasis, deinde convexis, striis im- pressis undique decussatis; albidd, ferrugineo-nifo tinctd et fasciatd; aperturd subangustd, fauce valide lirald, plicis duabus, tenuibus, prominentibus. The Eburna-shaped Cancellaria. Shell oblong, im- perforated, spire acuminately exserted, whorls slightly concavely impressed round the upper part, then con- vex, decussated throughout with impressed striae ; whitish, banded and stained with rust-red ; aperture rather narrow, interior strongly ridged, plaits two, thin, prominent. Eab. ? This species partakes of the characters of C. reticulata and acuminata, but is distinctly characterized by the more acuminated convolution of the spire, and more globose form of the body-whorl. Species 22. (Fig. a, b, Mus. Cuming.) Cancellaria decussata. Can. iestd globoso-fusiformi, oblecte umbilicatd, spird breviusculd, acuta, anfracti- bus ad suturam subimpressis, liris funicnlatis undique cancellatis ; fulvescente ; aperturd subangustd, plicis trihus, mediocribus. The decussated Cancellaria. Shell globosely fusi- form, with a covered umbilicus, spire rather short, sharp, whorls slightly impressed at the suture, can- cellated throughout with corded ridges ; fulvous ; aperture rather narrow, plaits three, moderate. Sowerby, Pro. Zool. Soc. 1832, p. 55. Rab. Panama (dredged from a sandy bottom, in ten to thirteen fathoms) ; Cuming. Of a somewhat Triton-Yike form, openly reticulated throughout with rather distant narrow raised cords. Species 23. (Fig. a, b, Mus. Cuming.) Cancellaria urceolata. Can. testa subfusifurmi-tur- ritd, solidiusculd, imperforatd, spird exsertd, anfrac- tibus superne anguste obtuse angulatis, deinde piano- convexis, oblique longitudinalitm- corrugato - liratis, sulcis spiralibus linearibus decussatis ; fuleescente- stramined ; aperturd parviusculd, pUcis duabus, an- gustis, subprominentibus. The urceolate Cancellaria. Shell somewhat fusi- formly turreted, rather solid, imperforated, spire ex- serted, whorls narrowly obtusely angled, then flatly convex, obliquely longitudinally wrinkle-ridged, de- cussated with spiral linear grooves ; fulvous straw- colour; aperture rather small, plaits two, narrow, rather prominent. Hinds, Zool. Voy. Sulphur, Moll. p. 41. pi. 12. f. 7, 8. Hab. Gulf of Papagayo and San Bias (in seven to fourteen fathoms); Hinds. Of a solid fusiformly turreted growth, superficially can- cellated with oblique longitudinal waved ridges and spiral linear grooves. November, 1856. Caric^llarici, Fl. W. » ^ k Sowerb^ dd.etlitl.. ♦ "VSncent. BrodkB Imj . CANCELLARIA. Species 21. (Fig. a, h, Mus. Cuming.) Cancell.\uia ckenifeka. Can. testa snbpyramidali, profumle umiilicatd, spird acuminata, anfractibus ad suturam plano-excavatis, deinde oblique ecstatic, costis ad angulum, muricato-uncinaiis, spiraliter crenato-li- ratis; iivido-spadieed, liris albidis ; aperturd parvd, fance incrassatd, plicis tribu.% niediocribus. The crenated Cancellaeia. Shell subpyramidal, deeply umbilicated, spire acuminated, whorls flatly excavated at the suture, then obliquely ribbed, the ribs prickly hooked at the angle, spirally crenately ridged; livid fawn, ridges white; aperture small, thickened in the interior, plaits three, moderate. jSowerby, Conch. Ulus. f. 29. Thesaurus Couch, vol. ii. p. 453. pi. 96. f. 84 to 86. Hab. Bay of Manila (in sandy mud at the depth of five fathoms) ; Cuming, This elegantly formed species is peculiarly characterized by the prickly-hooked termination of the ribs, which are crenated throughout with white cross-ridges. Species 25. (Fig. a, b, Mus. Cuming.) Cancellaria scalarina. Can. testa pyramidali, vix umbilicatd, spird acuniiuato-turritd, anfractibus ad suturam ampliter excavatis, acute angulalis, oblique coslatis, costis angustis, disiantihis, ad angulum ele- vatis; fulvo-spadiced, alio-faseiatd ; aperturd parvd, plicis tribtts, parvis. The LAUDER Cancellaria. Shell pyramidal, scarcely umbilicated, spire acuminately turreted, whorls largely excavated at the suture, sharply angled, oblicjuely ribbed, ribs narrow, distant, raised at the angle ; ful- vous-fawn, banded with white; apert\ire small, plaits three, small. Lamarck, Anim. sans vert. vol. iv. p. 403. Hab. West Indies. It is not possible to determine, satisfactorily, which spe- cies is the Lamarckian C. scalarina. The shell here figured is that assigned to it by Mr. Sowerby. Species 26. (Fig. a, b, Mus. Cuming.) Cancellaria melanostoma. Can. te-Hd ocatd, siibpen- tricosd, imperforald, spird brevimculd, acuminata, an- fractibus convexis, liris subtilibm undique dense decus- satis ; fulvescenfe-albd, rvfo-fusco linctd et faiciatd ; aperturd ovatd, columelld subexcavatd, late encausticd, purpureo-fuscd, plicis tribus, niediocribus. The black-moutu Cancellaria. Shell ovate. ventricose, imperforated, spire rather short, acumi- nated, whoris convex, closely decussated throughout with fine ridges ; fulvous-white, stained and banded with red-brown ; aperture ovate, columella somewhat excavated, broadly enamelled, purple-brown, plaits three, moderate. SowERisr, Pro. Zool. Soc. IS45, p. 137. Hab. ? Chiefly distinguished by its wide-spread enamelled la- mina around the columella, of a dark purple-brown colour. Species 27. (Fig. a, h, Mus. Cuming.) Cancellaria bifasoiata. Can. testa fusiformi-obhngd, ad basin attenuatd, imperforatd, spird exsertd, anfrac- tibus plam-convexis, liris parvis confertis midique dense decussatis ; rufescente-spadiced, faseiis duabus pallidis cingulatd; aperturd oblongo-omtd, columelld arcuatd, triplicatd. The two-banded Cancellaria. Shell fusiformly ob- long, attenuated at the base, imperforated, spire ex- serted, whorls flatly convex, densely decussated with- out with small close-set ridges; reddish-fawn, en- circled with two faint bands ; aperture oblong-oval, columella arched, three-plaited. Deshayes, Enc. Meth. Vers, vol. ii. p. 181. Cancellaria oblonga, Kiener. Hab. Straits of Macassar (in coarse sand) ; Hinds. The short description of C. oblonga in the Appendix to the Tankerville Catalogue does not agree with this fusi- form Mitre-\k.t species. Species 28. (Fig. a, b, Mus. Cuming.) Cancellaria textilis. Can. testa subpyramidaU, sub- umbilicatd, spird aeuminato-turritd, aiifractibtts ad suturam impresso-excavafis, deinde oblique longitudi- naliter costatis, liris spiralibus subobscuris decussatis ; rufo-castaned, super castas hie illic albipunctatd ; aper- turd parvd, plicis tribus, niediocribus. The textile Cancellaria. Shell subpyramidal, slightly umbilicated, spire acuminately turreted, whorls im- pressly excavated at the suture, then obliquely longi- tudinally ribbed, decussated with faint spiral ridges ; reddish-chestnut, here and there white-dotted on the ribs ; aperture smaU, plaits three, moderate. Kienek, Co(i\iilles Vivantes, Cancellaria, p. 10. pi. 7. f. 1- Hab. Moluccas. An elegant species, conspicuously distinguished by its chestnut-red colour, sparsely dotted on the ribs with white. November, 1856. Cdncellaiiay Fl. Til. Zumib} ad,a,"hOi ■WIlceQ^ Brooks Imp CANCELLARIA. Plate VII. Species 29. (Fig. a, b, Mus. Cuming.) CiNCELLARlA uiGOLOR. Call, tesld ovato-ventricosii, late profundi umhilicatd, spird breviusculd, turritd, anfrac- tibm ad suturam late, excavatis, acute angulatis, lon- gUudituilifer remote eoatatis, tenue spiraliter liratis ; mfo-castatwd, vermis apicem albd; aperturd trigono- omtd, basi sinuatd, plicis iribus, mbprominentibus. The Two-coLoiJUED Canceu.aeia. Shell ovately ven- tricose, broadly deeply umbilicated, spire rather short, turreted, whorls broadly excavated at the suture, sharply angled, longitudinally distantly ribbed, faintly spirally ridged ; reddish-chestnut, white towards the apex. ; aperture triangularly ovate, sinuated at the base, plaits three, rather prominent. Hinds, Zool. Voy. Sulphur, Moll. p. 43. pi. 12. f. 13, 14. Hub. Island of Samar, Philippines ; Cuming. A. sharply angled broadly turreted shell, with the longi- tudinal ribs rather distant from each other. Species 30. (Fig. a, b, Mus. Cuming.) Cancellaria h J.MASTOMA. Can. testd pyramidali-ovatd, solidd, subanguste umbilicatd, spird obtuse turritd, an- fraciibus superne rude angulatis, longitudinaliter cras- sicostatis, suleis linearibus spiralibus decussatis ; lutes- cetde-albd, rufo-fusco maculatd et J'asciatd ; aperturd parvd.fauce liratd et corrugatd, vivide sanguined, pli- cis fribiis, angustis. The ked-mouthed Cancellaria. Shell pyramidally ovate, solid, rather narrowly umbilicated, spire ob- tusely turreted, whorls rudely angled round the upper part, longitudinally thickly ribbed, decussated with spiral linear grooves ; yellowish-white, blotched and banded with red-brown; aperture small, interior ridged and wi-inkled, bright red, plaits three, narrow. SowEEBY, Pro. Zobl. Soc. 1832, p. 54. Hub. Gallapagos Islands (dredged from a sandy bottom, at a depth of ten to sixteen fathoms) ; Cuming. A solid rudely sculptured shell, with a characteristic bright-red aperture. Species 31. (Fig. a, b, Mus. Cuming.) Cancellaria chrysostoma. Can. testd subglobosd, vix umbilicatd, spird subpyramidali, superne parum angu- latis, costis crassis et liris rude decussatis; carules- cente-albd, castaneo sparsim lineatd et punctatd ; aper- turd rotundato-expansd, fauce liratd et corrugatd, vi- vide aurautio-sanguined, plicis tribus, prominentibus. The golden-mouth Cancellaria. Shell subglobose, scarcely umbilicated, spire subpyramidal, whorls but little angled at the upper part, rudely decussated with thick ribs and ridges; bluish-white, sparingly dotted and lineated with chestnut ; aperture ro- tundatcly expanded, interior ridged and wrinkled, bright oraiige-red, plaits three, prominent. Sowerby, Pro. Zool. Soc. 1832, p. 54, Hab. Panama and St. Elena (dredged from a sandy bottom, at the depth of from eight to ten fathoms) ; Cuming. Obscurely rudely decussated with ribs and ridges, and with a more expanded aperture than the preceding species. Species 32. (Fig. a, b, Mus. Cuming.) Cancellaria goniostoma. Can. testd subglobosd, am- pliter profundi umbilicatd, spird turritd, anfractibus superne latissime excavato-angulatis, longitudinaliter costatis, costis distantibus, liris spiralibus clathratis ; purpurascente-albd, castaneo-fusco hie illic lineatd; aperturd parvd, trigond, plicis duabus, subobsoletis. The angle-mouth Cancellaria. Shell subglobose, largely deeply umbilicated, spire turreted, whorls very broadly excavately angled at the upper part, longitudinally ribbed, ribs distant, latticed- with spiral ridges ; purple-white, here and there lineated with cliestnut-brown ; apertm-e small, triangular, plaits two, rather obsolete. Sowerby, Pro. Zool. Soc. 1832, p. 51. ffab. Conchagua and St. Salvador, Central America (dredged from a sandy bottom, at a depth of about eight fathoms) ; Cuming. This fine species is characterized by its broadly angled turreted growth and bold latticed sculpture. Species 33. (Fig. a, b, Mus. Cuming.) Cancellaria rigida. Can. testd ovatd, subavipliter pro- funds umbilicatd, spird turritd, anfractibus supems late excavato-angulatis, oblique costatis, costis tenuibus, subdistantibus, liris subtilibus spiralibus decussatis; luteo-spadiced, ad angulum purpureo-fuseo maculatd; aperturd trigond, ad basin sinuatd, triplicatd. The rigid Cancellaria. Shell ovate, rather largely deeply umbilicated, spire turreted, whorls broadly excavately angled at the upper part, obliquely ribbed, ribs thin, rather distant, decussated with fine spiral ridges; yellowish-fawn, spotted at the angle with purple-brown; aperture triangular, sinuated at the base, plaits three. Sowerby, Pro. Zool. Soc. 1832, p. 53. Cancellaria costata, Sowerby, Jun. Rab. Puerto Portrero, Central America (from a sandy bottom, at the depth of thirteen fathoms) ; Cuming. This species comes near to C. goniostoma in form, but is at once distinguished by its more delicate ribs. November, Cajt/xllarta., Fl. YUI. -3 -i '-> \_, Mus. Cuming.) Cancellaria laMELLOSa. Can. testa ovatd, sublate pro- fundi nmbiUcatd, spird acute acuminatd, anfractd>m supmCe anguste excavatis, oblique longitudinalder cos- tatis costis pulcherrime seiraiis et lamellatu, ad an- gttlum muricato-uncinatis; albida, ad angulum rufo- fusco maculatd ; aperturd trigono-ovatu, fauce liratd, columelld triplicatd. The lamellose Cancellaria. Shell ovate, rather broadly deeply umbilicated, spire sharply acumi- nated, whoris narrowly excavated on the upper part, obliquely longitudinally ribbed, ribs beautifully ser- rated and lamellated, prickly-hooked at the angle; whitish, spotted with red-brown at the angle ; aper- ture triangularly ovate, ndgc^d within, columella three-plaited. Hinds, Zool. Voy. Sulphur, Moll. p. 43. pi. 12. f. 15, 16. Eab. Indian Archipelago. A beautifully sculptured species, the ribs being ele- gantly produced along the edge into lamellK. Fig. 66. (Mus. Cuming.) The shell here represented is in a very immature stage of growth, and may be the young of C. Spengleriana. It however has a finer pattern of sculpture than is usual with that species. Species 67. (Fig. a, b, Mus. Cuming.) Cancellaria hystrix. Cati. testa globoso-ovatd, imper- furatd, spird breviusculd, acute acuminatd, arifractilius ad suturam anguste angulatis, oblique longitudinaliter dense costatis, costis erectis, angustis, nndique pul- chrrime muricato-serratis ; albidd, livido-fuscescente palliM iinctd; aperturd ovatd, fauce rnfUineatd, co- lumelld arcuatd, plicis tribus, irreguhribus. The hedgehog Cancellaria. Shell globosely ovate imperforated, spire rather short, sharply acuminated whorls narrowly angled at the suture, obliquely Ion -ritudinally closely ribbed, ribs erect, narrow, beauti fully prickly serrated throughout; whitish, faintly tino-ed with livid brown; aperture ovate, interior marked with red lines, columella arched, plaits three, irregular. Ilab. Mauritius. This is one of the most beautifully sculptured species of the genus. The ribs are peculiariy serrated throughout at the edge into short obtuse prickles. November, 1856. Cancellaji/iJPl.J\ I % Vjncent Srooks CANCELLARIA. Species G8. (Fig. a, b, Mus. Cuming.) Cancellaria funiculata. Can. testa acuminalu-turn- td, umbilicald, spird gracili, anfractibm ad suiuram profmidi impressis, obinse angulatis, longitudinaliter costatis, costis elevatis, compressis, dktantibua, liris exilibus transversis sculptis, lined elevatd inlerveniente ; pellucido-albd, ouraiitio jjallidi tiiictd ; aperturd tri- gono-ovatd, lahro expatiso, colnmelld tripUcatd. TiiF, CORDED Cancellakia. Shell acuminately tnr- reted, umbiliciited, spire slender, whorls deeply im- pressed at the suture, obtusely angled, longitudinnlly ribbed, ribs raised, compressed, distant, sculptured with delicate transverse ridges, with a raised line in- tervening; transparent white, faintly tinged with orange ; aperture triangularly ovate, lip expanded, columella three-plaited. Hinds, Moll. Voy. Sulphur, p. 43. pi. 12. f. 5, 6. Cancellaria lyrata, Adams and lleeve. Ilab. Gulf of Magdalena, California (in sandy mud, at seven fathoms); Hinds. Characterized by its exquisitely sculptured distant ribs, which give the shell a Scalaria-WVe aspect. Although the locality given by Sir Edward Belcher to C. lyrata of the Voyage of the Samarang is China Sea, the species are evi- dently the same. Species G9. (Fig. a, b, Mus. Cuming.) Cancei,L.\ki.4. Mangelioides. Can. testa acimiinato- turritd, impcrforatd, spird acuta, anfractibm superne angulatis, longitudinalitef costatis, costis compressis, disiantiJjas, transversini striatis ; candidd ; aperturd trigono-ovatd, labro subexpamo, coltimelld tripUcatd. The Makgelia-i.ike Cancellaria. Shell acuminately turbinated, imperforated, spire sharp, whorls angled round the upper part, longitudinally ribbed, ribs compressed, distant, transversely striated ; white ; aperture triangularly ovate, lip rather expatidcd, co- lumella three-plaited. • Hab. ? Kesembling the ])rcccding species in some respects, but more compactly convoluled, and more obtusely angled round the upper pari of tiie whorls. Species 70. (Fig. fi, h, Mus. Cuming.) CaNcellaiua tlssellata. Can.' testa cylindraceo-ob- longd, soUdimculd, imperforatd, spird brevi, conicd, suturd parmti impressd, anfractUms plano-convexis, granoso-decussatis ; albidd, purpureo-ferrugineo fas- ciatd et interdum tessellatd ; aperturd anguste oblongd fatice liratd, colunielld valide biplicatd, late e?icaus- ticd. The tessellatkd Cancellakia. Shell cylindrieally oblong, rather solid, imperforated, spire short, coni- cal, suture but little impressed, whorls flatly convex, granosely decussated; -whitish, banded and some- times tessellated with purple-rust ; aperture narrowly oblong, ridged within, columella strongly two-plaited, broadly enamelled. SowERBY, Pro. Zool. Soc. 1833, p. .")1. Ilab. Bay of Caraccas, St. Elena, and Xipixapi, Central America (dredged from a sandy nmddy bottom, at a depth of from seven to ten fathoms) ; Cuming. Quite unlike any other species of the genus in its gene- ral typical form, as is sufficiently apparent in the figure. Species 71. (Fig. a, h, Mus. Cuming.) Cancellaria foveolata. Can. testa pyramidali-ovatd, anguste umbilicatd, spird exsertd, anfractibus ad su- iuram profunde declivi-excavatis, ad angulum obtuse carinatis, deinde plano-convexis, lavibus; carneo-fulvd, lineis pallide fuscescentibus cingulatd, aurantio-fusco ad angulum cingulatd ; aperturd trigono-ovatd, labro crasse varicoso, columelld arcuatd, tripUcatd. The trenched Cancellaria. Shell pyramidally ovate, narrowly umbilicated, spire exserted, whorls deeply slantingly excavated at the suture, obtusely keeled at the angle, then flatly convex, smooth ; flesh-fulvous, encircled with faint brownish lines, blotched with orange-brown at tlie angles ; aperture triangularly ovate, lip thickly varicose, columella arched, three- plaited. SowEKBY, Pro. Zool. Soc. 1848, p. 137. Hab. Algoa Bay. The excavated grooving of this species slants inward in a peculiar manner, whilst the shell is characterized by a faint linear pattern. Species 73. (Fig. a, b, Mus. Cuming.) Cancellaria corrugata. Can. testd oblcmgo-pyriformi, imperforatd, spird cvsertd, subobtusd, anfractibus de- clivi-convexis, longitudinaliter ob-iolete corrugatis, lineis impressis decussatis ; fulvo-olivaced ; aperturd anguste oblongd, fauce liratd, columelld subattenuatd, bipli- catd. The wrinkled Cancellaria. Shell oblong pear-shaped, imperforated, spire exserted, rather obtuse, whorls slantingly convex, longitudinally obsoletely wrinkled, decussated with impressed lines ; fulvous-olive ; aper- ture narrowly oblong, ridged within, columella rather attenuated, two-plaited. Hinds, I'ro. Zool. Soc. 1843, p. 48. Hab. Bay of Guayaquil (in mud, at the depth of seven fathoms) ; Hinds. Of a veiy distinct typical form, peculiarly attenuated towards the base, and having no excavated indenture at the suture. December, 1856. ((mcdhma M-MI. 4 Sov^-crby del et hth . "Vinccnv Brooks imp CANCELLARIA. Plate XYI. Species 73. (Fig. a, b, c, d, Mus. Cuming.) Cancellaeia semipelhicida. Can. testa, ovato-ventri- cosd, ienuicida, mimitmmie vmbilicatd, spird h-evitm- culd, acuta, suturd profundi impressd, anfractibus su- periie rotundatis, longitvdinaliter oblique plicato-cos- tatis, traimversim tenuiliratis ; fulvescente, subpellu- cidd ; aperturd ovaid, ad basin ailenuatd, columella triplicatd. The semitransparent Cancellaeia. Shell ovately veutricose, rather thin, very minutely umbilicated, spire rather short, sharp, suture deeply impressed, whorls rounded at the upper part, longitudinally ob- liquely plieately ribbed, transversely finely ridged; fulvous, subpellucid ; aperture ovate, attenuated at the base, columella three-plaited. Adams and Reeve, Moll. Voy. Samarang, p. 43. pi. 10. f. 3 and 3 a. Hab. Sooloo Sea. A light inflated shell, with the suture deeply impressed, peculiarly attenuated at the base. to the remarkable C. triffonostoma, the whorls being con- voluted in the same peculiar maaaer. Species 74. (Fig. a, b, Mus. Cuming.) Cancellaeia antiquata. Can. tedd ovatd, perampliter et profunde umbilicatd, spird turritd, anfractibus ad suturam late declivi-excavatis, ad awjtdum carinatis et muricatis, deinde acute plicato-costatis, lavigatis ; albd ; aperturd parvd, irlcjond, colmiwlld subobsolcie bipUcald. The axtiucated Cancellaeia. Shell ovate, very largely and deeply umbilicated, spire turreted, whorls broadly slantingly excavated at the suture, keeled and prickled at the angle, then sharply plieately ribbed, smooth ; white ; aperture small, triangular, columella rather obsoletely two-plaited. Hinds, Moll. Voy. Sulphur, p. 43. pi. 12. f. 17, IS. Hab. New Guinea (di'edged from coarse sand, at the depth of twenty-two fathoms) ; Hinds. This elegant little species has the largest umbilicus next Species 75. (Fig. a, b, Mus. Cuming.) Cancellaeia tenuis. Can. testa ovatd, tenuiculd, an- ffuste profundi umbilicatd, spird subpyramidali, an- fractibus ad suturam anguste declivi-excavatis, longi- tudinaliter laminato-costatis, transversim tenuiliratis ; fulvescente; aperturd ovatd, ad basin atlennatd, colu- melld triplicatd. The thin Cancellaeia. Shell ovate, rather tliin, nar- rowly deeply umbilicated, spire subpyramidal, whorls narrowly slantingly excavated at the suture, longitu- dinally laminately ribbed, transversely finely ridged ; fulvous ; aperture ovate, attenuated at the base, co- lumella three-plaited. ,^ (Vdams, MS., Mus. Cuming. ' ' Hab. ■ ? A light semitransparent fulvous sheU, chiefly distin- guished by the thin laminar structure of the ribs. Species 76. (Fig. a, b, Mus. Cuming.) Cancellaeia Puepueifoemis. Can. testd oblongo- ovatd, imperforatd, spird exsertd, subobtusd, anfracti- bus plano-convexis, longitudinaliter obsolete plicalis, transversim liueari-sulcatis ; fuscescente-albu ; aper- turd ovatd, columella arcuatd, triplicatd. The Purpura-shaped Cancellaeia. Shell oblong- ovate, impei-forated, spire exserted, rather obtuse, whorls slightly convex, longitudinately obsoletely pli- cated, transversely linearly grooved ; brownish-white ; aperture ovate, columella arched, three-plaited. Valenciennes, Kiener, Coquilles vivantes, Cancellaria, No. 27. Hab.- ? A simple oblong-ovate shell, without umbilicus or any depression at the suture. December, 1856. (\,mrlUmi,fl\Tn. 4 i I I Soweriy da.ct. hvh Vincent iitooka Irap CAN CELL ARIA. Plate XVII. Species 77. (Fig. a, b, Mus. (lumiiig.) ("ancellaria minima. Can. testa mbfauformi, imper- foratd, spird subelongatd, avfractibus rotundatk, ob- lique costatis, costis mtperne obtuse nodosis, interstitm nitide cancellatis ; alba, interdum fuscescenie ; colu- mella obsolete biplicatd. The veey small Cancbllaria. Shell subfusiform, im- perfoi'ated, spire nitlier elongated, whorls rounded, obliquely ribbed, ribs obtusely noduled at the upper part, interstices neatly cancellated ; white, sometimes brownish; columella obsoletely two-plaited. IM. ? A minute species, oblicjuely ribbed, with the interstices neatly latticed with fine transverse ridges. Species 78. (Fig. a, b, ilus. Cuming.) Cancellaria nitida. Can. testa ovato-tiirritd, swperfi- cialiter umbilicatd, spird acuta, aufractibus ad sutu- ram anguste angiilatis, costatis, costis compressis, valde promineniibm, acutis, interstitiis lavigatis ; alba, car- neo-tinctd ; aperturd svhquadrato-ovatd, fauce liratd, columelld conspicue triplicatd. The neat Cancellaria. Shell ovately turrctod, super- ficially umbilicated, spire sharp, whorls narrowly an- gled at the suture, ribbed, ribs compressed and very prominent, sharp, with the interstices smooth ; white, flesh-tinged ; aperture somewhat squarely ovate, ridged within, columella conspicuously three-plaited. Adams, MS. Mus. Cuming. Hab. ? Distinguished by its sharply develo})cd ribs, which re- semble those of Scalaria more than in any other species. gii.dc profundi mnbilicald, spird breviusculd, acuta, anfractibus tumidis, superne obtuse angiilatis, rude no- doso-costatis, trausversim liratis ; rufescente ; aper- turd subquadrato-ovatd, ad basin attenuatd, columella triplicatd. The baked Cancellaria. Sh.ell ovately globose, nar- rowly deeply umbilicated, spire rather short, sharp, whoris tumid, obtusely angled at the upper part, rudely nodosely ribbed, transversely ridged ; reddish ; aperture somewhat squarely ovate, attenuated at the base, columella three-plaited. Hab. ? A shell of rather tumid growth, decussated with blunt noduled ribs and ridges, of a peculiar reddish colour. Fig. 80. (Mus. Cuming.) The shell here figured pi-oves to be a variety of C. pisca- toria described at PI. XII. Sp. 55. Species 79. (Fig. a, b, Mus. Cuming.) Cancellaria coctilis. Can. testa ovato-globosd, an- Speeies 81. (Fig. a, b, Mus. Cuming.) Cancellaria TiENiATA. Can. testa subfusiformi-turritd, imperforatd, spird subgracili, anfractibus snperne pla- no-angulatis, longitudinaliter anguste costatis, subob- solete decussatim liratis ; fulvo-rufescente, fusco im- niatd; columelld biplicatd. The filleted Cancellaria. Shell somewhat fusiformly turreted, imperforated, spire rather slender, whorls flatly angled round the upper part, longitudinally narrowly ribbed, faintly decussately ridged ; fulvous- red, filleted with brown; columella two-plaited. SotvERBY, Pro. Zool. Soc. 1848, p. 137. Huh. ? A slender turreted species, neatly filleted with narrow brown bands upon a fulvous-red ground. December, IS 5 6. CanceUarm, PL MU. \ £>uilus, Chemnitz. Monodonta papillosa, Lamarck. LMorina papillosa, Deshayes. Tectarius papillosus, Adams. Eab. Zanzibar, North Australia, and New Zealand. The varieties of this extremely variable species are dis- tinguished by Philippi in his ' Abbildungen ' as vars. ele- gans, quadriseriata, rustica, subinermis, and vera. The division is but an artificial one, though characteristic of as mauy typical states of the species. The differences con- sist mainly in the development of the papillae-like nodules of the shell, which may be observed in all gradations, from prickly protuberances, to oblong, more or less obsolete, compressed tubercles. ^ ,^\. Species 3. (Mus. Cuming.) _, 'JT'^ (V't^ LiTTORiNA coronaria. Lilt, lestd pyramidali-conicd, L' crassd, imperforaid, laded, anfractibus superne con- cavo-declivibus, subangulalis, strialis et carinatis, ca- rinis undique muricato-nodulalis, columelld subcon- tortd, basi crenatd. Tin; garland Littorina. Shell pyramidally conical, thick, imperforated, cream-coloured, whorls coucavely slanting at the upper part, slightly angled, striated and keeled, keels everywhere prickly noduled, colu- mella somewhat twisted, notched at the base. Monodonta coronaria, Lamarck, Anim. sans vert. vol. ix. p. 174. Enc. Me'th. pi. 447. f. 6. Littorina coronaria, Philippi. Echinella coronaria, Adams. ,1^^ Ilab. Philippine Isli 1857. '• . lids ; Cuming. , . . \ LITTORIXA.— Plate I. This species may be readily distinguished from all varie- ties of the preceding by its more pyramidal forju, smaller, prickly sculpture, and more concave growth at the suture. Species 3. (Mus. Cuming.) LiTTOBiNA tectum-Pebsicum. LM. testd obluiue conku, crassa, hnperforatd, laded, Jitsco iiiictd ei Uneata, tramversim striata, et tuberculatd, tuberculin rudiius, promiruiitibns, declivibus, pins minus irreijularibm, colmnelld basi cremdatd. The Pbusian-koof Littorina. Shell obliquely conical, thick, imperforated, cream-coloured, stained and li- neated with brown, transversely striated and tnber- cled, tubercles rude, prominent, slanting, more or less irregular, columella slightly notched at the base. Turbo tectum-Persicum, Linnneus, Syst. Nat. p. 123i. Monodonta tectum-Persicum, Lamarck. Littorina tectum-Persicum, Deshayes. Hah. ? Intermediate in its characters, between L. bvlla/a and pagodus, and subject apparently to limited variation. Species 4. (Mus. Cuming.) Littorina pagodus. Litt. testd oblique conicd, actitd, crassd, solidd, imperforatd, fuHcescente-lacied, fusco tinctd et Uneata, anfractibus rugoso-striatis, et com- presse uodulatis, superne declivibus, rude subpUcatis, anfractu ultimo conspicue bittcberculato. The pagoda Littorina. Shell obliquely conical, sharp, thick, solid, imperforated, brownish cream-colour, stained and lineated with brown, whorls roughly striated and compressly noduled, slanting round the upper part, rudely subplicated, last whorl conspicu- ously bitubercled. Turbo pagodus, Linnaeus, Syst. Nat. p. 1234. Trochus pagodus, Chemnitz. Monodonta pagodus, Lamarck. Littorina pagodus, Deshayes. Tectarius pagodus, Guerin. This well-known species is chiefly remarkable for its uniformly large size and more angular sharp growth, the entire svirface being more or less plicately striated and tu- bercled, the tubercles on the last whorl being developed in a prominent double row. liUonmi, Ft. II. 4 4 % 4 4 SevreiW ad etlitli "i^Ticent Bioofc Irap. LITTORIN A. Species 5. (Mus. (Jiiming.) LiTTORiNA spiNHLOSA. LM. tenia conicd, acuta, angwsti profiinde umUlicata, itinbilico interdam oldecto, rufo- carned, anfractibm rngoso-striatis, dKlixu-ancjnlatk, seriatim ndntife nodidatis. The spined Littorina. Shell broadly conical, sharp, narrowly deeply umbiiicated, umbilicus sometimes covered, reddish flesh-colour, whorls roughly striated, slantingly angled, sculptured with rows of small no- dules. Philippi, Abbild. und Besch. Conch, vol. iii. p. 17. \A. 6. f. 24. Ilab. Singapore ; Cuming. The reddish flesh-colouring of this species, as compared with the uniform livid-grey that prevails in the group, is not among the least characteristic of its peculiarities. Species 6. (Mus. Cuming.) LiTTOKiNA LEMNiscATA. Lift, testd a7iguste coiiicd, imper- foratn, nigra, striis transversi-t et granulormn seriebus tribm, basi obscure albifasciaid, columella concavo- effusd. The filleted Littokina. Shell narrowly conical, im- perforated, black, sculptured with transverse striae and three rows of granules, base obscurely white- banded, columella concavely effused. Philippi, Pro. Zool. Soc. 1845, p. 139. Hab. Cuba? k small pyramidally conical shell, sculptured with raised transverse lines and granules. Species 7. (Mus. Cuming.) Littorina Malaccana. Litt. testa sublate conicd, acutd, nigricante-grised, anfractibus superne declimbus, irans- versim striaiis, gramdis albicantibus biseriatim cingu- latis. The Malacca Littorina. Shell somewhat broadly co- nical, sharp, blackish-grey, whorls slanting at the upper part, transversely striated, encircled with two rows of whitish granules. Philippi, Abbild. und Eesch. Conch, vol. iii. p. 15. pi. 6. f. 17. Ilab. I'ulo Penang, Malacca. More tumid in the lower whorl than the preceding spe- cies, with the granules whitish. Species 8. (Mus. Cuming.) Littorina Cumingii. Litt. testa abbreviato-conicd, pro- funde ■umbilicatd, acutd, carneo-cinered, anfractibm superne plano-declivibiis, minute aquamulato-striatis, squamis mnricatis prominentibus biseriatim cingutaiis, basi mnlti-squamafd. Cuming's Littorina. Shell shortly conical, deeply um- biiicated, sharp, flesh-tinged ash-colour, whorls flatly slanting at the upper part, minutely squamulately stri- ated, encircled with two rows of prominent prickly scales, base many-scaled. Philippi, Abbild. und Besch. Conch, vol. iii. p. 17. pi. 6. f. 22. Echindla Cumingii, Adams. Hab. Island of Guimaras, Philippines. This very beautiful species is prominently distinguished by its winding periphery of prickly scales and deep umbi- licus. Species 9. (Mus. Cuming.) Littorina dilatata. Litt. tesld subpyramidali-conicd, crassiusculd, imperforatd, livido-grised, nodulis albi-i cingulatd, anfractibus superne declivibus, columelld late concavo-dilatatd, purpnrascen te-fuscd. The dil.ated Littorina. Shell subpyramidally conical, rather thick, imperforated, livid-grey, encircled with white nodules, whorls slanting at the upper part, co- lumella broadly coucavely dilated, purplish-brown. D'Orbigny, Moll. Cuba, p. 307. pi. 14. f. 20-23. Hab. Cuba. Chiefly remarkable for the broadly excavated purple- brown columella, and conspicuous white nodules upon a livid-gi'ey ground. Species 1 0. (Mus. Cuming.) Littorina subnodosa. Litt. iestdovato-conicd, solidd. imperforatd, yrised, purpureo-fusco iesscllatd, trans- versim triliratd, liris distantibus tenne nodulatU ; aperturd parviusculd, purpureo-fuscd. May, 1857. LITTORINA.— Plate II. The subnodose Littorina. Shell ovately conical, solid, imperforated, grey, tessellated with purple-brown, transversely three-ridged, ridges distant, finely no- dded ; aperture rather small, purple-brown. Philippi, Abbild. und Bescb. Couch, vol. ii. p. 19. pi. 3. f. 8 and 9. Hab. Red Sea. A solid, rather tumid species, encircled with three ra- ther distant, finely noduled ridges, tessellated with rich purple-brown, and having the columella and interior deeply stained with the same colour. Species 11. (Mus. Cuming.) Littorina MURICATA. Lilt, testa ovato-conicd, acuta, an- ffuste excavato-umiilicatd, violascente-cinered, anfrac- tibus rotundatis, ad mtiiram subimpressis, driatis, no- dulls granularibits undique seriatim sculptis. TiiF. PRICKLY Littorina. Shell ovately conical, sharp, narrowly excavately umbilicated, violet-ash, whorls rounded, rather impressed at the suture, striated, en- circled throughout with rows of granuled nodules. Turbo muricatus, Linnaeus, Syst. Nat. 12th edit. p. 1232. Z« Boson, Adanson. Littorina muricata, Deshayes. Hab. West Africa, Cuba, Honduras. In this- species the whorls are more rounded and the suture more impressed than in its congeners, and the i;ranulated sculpture is more defined. flab. New Zealand. Distinguished from the allied species by its more slen- der, sharply pyramidal form. Species 12. (Mus. Cuming.) l>lTroRiNA viLls. Lilt, testa pyramidali-couied, acuta, im- perforatd, transversitn elevato-striatd, virescenle-gr'ised, anfractibus supenie plano-dedivibus, nodulis albidis medio biseriatim cinctk, aperlitrd purpureo-fuscd. The WORTHLESS Littorina. Shell pyramidally conical, shai-p, imperforated, transversely elevately striated, greenish-grey, whorls flatly slanting round the upper part, encircled round the middle with two rows of white nodules, aperture purple-brown. -Menke, Philippi, Abbild. und Besch. Conch, vol. ii. p. 15. pi. 2. f. 21, Species 13. (Mus. Cuming.) Littorina nodosa. Litt. testd obovatd, tumidiuseuld, im- perforatd, spird brevi, acuta, anfractihus superne de- clivibus, delude convexls, liris linearibm et nodulis te- nuibus muricatis cingulatis, fusco-grised, rufo tinctd, columella late excavatd, apertura fauce fused. The nodose Littorina. Shell broadly ovate, rather swollen, imperforated, spire short, siiarp, whorls slanting round the upper part, then convex, encircled with linear ridges and fine prickly nodules, fuscous- grey, stained with red, columella broadly excavated, interior of aperture brown. Gray, Zoology of Beechey's Voyage, p. 139. Uab. North coast of Australia. A shortly conoid swollen species, with a somewhat Pur- /i«rfl-like aspect, sculptured with fine granose nodules. 14. (Mus. Cuming.) Littorina pyramidalis. Lilt, testd pyramidali-ovatd, imperforatd, spird turritd, anfractibus superiw concavo- decUvibus, deinde angulatis, et tuberculorum seriebus dtcabus cotispicue cingulatis, purpureo-adustd, apertura parvd, columella latissime excavatd, purpurasceiile, basi subproductd. The pyramidal Littorina. Shell pyramidally ovale, imperforated, spire turreted, whorls concavely slant- ing at the upper part, then angled, and conspicuously encircled with two rows of tubercles, purple-brown, aperture small, columella very broadly excavated, purplish, rather produced at the base. QuoY and Gaimard, Voy. de I'Astrolabe, vol. ii. pi. 33. f. 12-15. Hah. New Zealand. .A rather abnorii its cliaracters. form of the genus, quite peculiar in littxn'iria, Till I. Soweiiy 3eL si litK Vincent Brooks Imp. LITTORINA. Species 15. (Fig. b, c, Mus. Cumiug.) LiTTORlNA AHENEA. Litt. tcstd ovato-turbinatd, imper- foratd, spira acuta, mttird impressd, anfractibua con- vexis, dense scabroso-striatis ; albidd vel lutescenle, ci- nereo-fmco et cteruleo varie oblique strigatd sen leti- tiffinosd. The bronzed Littoiiina. Shell ovately turbinated, im- perforated, spire sharp, suture impressed, whorls con- vex, densely scabrously striated ; whitish or yellow- ish, variously obliquely streaked or freckled with ash- brown and blue. Hob. Senegal. The two shells lieve represented, from Mr. Cuming's collection, were figured by Dr. Philippi in his 'Abbildun- gen,' pi. 5. fig. 13 and 14, as varieties of L. angulifera, Lamarck. They appear to me, on further examination and comparison, to belong to different species. Fig. 15 a I take to be a variety of L. scabra, described at PI. 5. Sp. 21, while the shell Fig. 15 i and 15 c appears not to have been described. Species If). (Fig. a, b, Mus. Cuming.) LiTTOBiNA GRANDis. Litt. testd oblique turbiitatd, crassd, solidd, imperforald, anjractibus superne con- caviusculis, lavibm vel obsolete carinatis, versus api- ceni striatis ; Cfsrulescente-grised, carinis interrupte nigricante-ficscis, columella late callosd, albd, labro fusco mucidato. The LARGE LiTTORiNA. ShcU obliquely turbinated. thick, solid, imperforated, whorls slightly concave round the upper part, smooth or obsoletely keeled, striated towards the apex ; bluish-grey, keels inter- ruptedly blackish-brown, columella broadly callous, white, lip spotted with brown. MiDDENDORF, Beit. Malac. Rossica, part 2. p. 57. Hab. Island of Schantar, Sea of Ochotsk ; Middendorf. A fine species of solid massive growth, of a bluish-grey colour, encircled with narrow interrupted black-brown bands, indicating keels that with age have become obso- lete. Species 17. (Fig. a, b, Mus. Cuming.) J''^ LiTTORiNA PULCHRA. Litt. testd ovato-turgidd, imp'er- foratd, apice acutd, anfractibus dense lirato-striatis, superne concavo-declivibus ; aurantio-rufescenle,flam- mulis atratis obliquis strigatd, columelld late exca- vatd. The beautiful Littorina. Shell ovately turgid, im- perforated, apex sharp, whorls densely ridge-striated, concavely slanting at the upper part; orange-red, streaked with oblique black flames, columella broadly excavated. SowERBY, Genera of Shells, Littorina, f. 2, 3. Ilab. Panama. Another fine species, better known to collectors than the preceding, distinguished by its conspicuous pattern of ob- liquely waved stripes upon a rich orange-red ground. May, 1857. Zittorma,Il.IV. 4 S Sovferby del, etMii LITTORINA. Species 18. (Fig. a, b, c, d, Mus. Cuming.) I.ITTORINA LITTOEEA. Litt. testd omto-turbinatd, im- perforaid, crassd, leevigald vel spiraliter elevato-dri- atd, anfractibus interdum superne concavo-impres»is ; oUvaced, aut cinered, aid ntfd, nigricanU interdum fasciatd et lineald ; coiumelld late caUosd,sii6excavaid, alba. The shore Littorina. Shell ovately turbinated, im- perforated, thick, smooth or spirally elevately stri- ated, whorls sometimes coiicavely impressed round the upper part ; olive, or ash, or red, sometimes banded and lineated with black ; columella broadly callous, slightly excavated, white. Turbo littoreus, Linnajus, Syst. Nat. p. 1232. Turbo ustulatus, Lamarck. Littorina vulgaris, Sowerby. Littorina liltorea, Johnston. Hab. Atlantic shores of Europe. Of tliis species, the well-known eatable Periwinkle of our market, we have selected four varieties, difl'ering in colour and even in form, so far as regards the angular depression of the upper portion of the whorls. Species 19. (Tig. a, b, Mus. Cuming.) Littorina varia. Litt. testd acuviinato-ovatd, imper- forald, crassiusculd, dense irregularlter carinatd, prope suturam canaliculatd ; lutescente-albd, lineis nigris undique tessellato-lentiginosd ; coiumelld sublate exca- vatd, margine nigro-lineato. The varied Littorina. Shell acuminately ovate, im- perforated, rather thick, densely irregularly keeled, somewhat channelled next the suture; yellowish- white, everywhere tessellately freckled with black lines; columella rather broadly excavated, margin black-lined. Sowerby, Genera of Shells, No. 37. Hab. Panama. A prettily marked species, densely irregularly keeled throughout. Species 20. (Mus. Cuming.) Littorina fasciata. Litt. testd ovato-turbinatd, sub- ventricosd, iniperforatd, lavigatd; albidd, fasciis li- neisque fusco-griseis oblique undatd ; aperturd subcon- tractd, coiumelld late eicavatd, margine fusco-lineato. The banded Littorina. Shell ovately turbinated, somewhat ventrieose, imperforated, smooth ; whitish, obliquely waved with brownish-grey bands and lines ; aperture somewhat contracted, columella broadly ex- cavated, margin brown-lined. Gray, Zool. Beechey's Voyage, p. 139. Hab. Tumbez, Peru ; Cuming. A fine bold species, lineated and obliquely banded, cha- racterized by a dark blotch upon the columellar area, which is more than usually twisted. May, 1S57. LuiMriria , J^l. Y. Ziu. 4 4 $ SowerW dfi etlith. . "Vincent Brooks Imp LITTORINA. Plate V. Species 21. (Fig. a, b, Mus. Cuming.) LiTTORiNA scABRA. LM. testd acuminalo-ovaU'i, tenui- culd, aiifraclibus declivi-convexis, spiraliter dense lira- lis, stria elevatd s/epe inter liras decurrente, infertie obsolete tinicarinatis ; lutescente aut rosed, nunc ob- lique fiisco strigatd et pnnctatd, nunc immacwlatd ; aperiurd sidicontractd, columella excavato-appressd. The scabrous Littorina. Shell acuminately ovate, rather tiiin, whorls slantingly convex, spirally densely ridged, with a raised stria often running between the ridges, obsoletely keeled towards the lower part; yellowish or rose, sometimes obliquely streaked and dotted with brown, sometimes unspotted ; aperture rather contracted, columella excavately appressed. Helix scabra, Linnseus, Syst. Nat. p. 1243. Phasianella aiiffulifera, Lamarck. Littorina scabra, Philippi. Hab. Philippine Islands ; Cuming. Mostly characterized by a painting of oblique inter- rupted dark-brown streaks, though it has varieties of yellow or rose-colour entirely without marking. Species 22. (Fig. a, b, Mus. Cuming.) Littorina Philippiana. Litt. testd acvmiuato-ovatd, lenui, anfractibus declivi-convexis, spiraliter regulari- ter filoso-liraiis, interstitiis oblique longitudinaliter striatis, in/erne obsolete carinatis ; purpuraacente-spa- diced, obsctire punctata, versus apicem nfd; aperturd subcontructd, columella appressd, purpurascentc. Philippi's Littorina. Shell acuminately ovate, thin, whorls slantingly convex, spirally regularly thread- ridged, interstices obliquely longitudinally striated, obsoletely keeled at the lower part; purple-fawu, obscurely dotted, red towards the apex ; aperture rather contracted, columella appressed, purplish. Hab. Philippine Islands ; Cuming. This species very closely resembles the L. Sieboldii, which immediately foUows, but the spiral ridges are of a finer thread-like character, and there : in the substance of the shell. more transparency Species 23. (Fig. a, b, Mus. Cuming.) Littorina Sieboldii. Litt. testd acumiuato-ovatd, te- nuiculd, anfractibus declivi-convexis, spiraliter eari- nato-liratis, strid elevatd inter liras decurrente; lu- tescente-spadiced, obscure punctatd ; aperturd subcon- tractd, columelld excavato-appressd. Siebold's Littorina. Shell acuminately ovate, rather thin, whorls slantingly convex, spirally keel-ridged, with a raised stria running between the ridges; yel- lowish-fawn, obscurely dotted ; aperture rather con- tracted, columella excavately appressed. Philippi, Pro. Zool. Soc. 1845, p. 142. Abbild. und Besch. Conch, pi. 6. f. 3. Hab. Japan. A fine acuminated species, of rather solid growth, spi- rally keel-ridged throughout with great regularity. Species 24. (Fig. a, b, c, Mus. Cuming.) Littokina pilosa. Litt. testd acuminato-otatd, tenui, subventricosd, anfractibus convexis, spiraliter JUoso- liratis, liris regularibiis, subdistantibus, strid elevatd inter liras raro decurrente ; cinereo-grised aut rosed, fitsco sape promiscuii punctatd ; aperturd subrotundatd, columelld teiiue contortd. The thread-bound Littokina. Shell acuminately ovate, thin, somewhat ventricose, whorls convex, spi- rally thread-ridged, ridges regular, rather distant, with rarely a raised stria running between the ridges ; ash-grey or rose, often promiscuously dotted with brown ; aperture nearly round, columella thinly twisted. SowERBY, Genera of Shells, Littorina, f. 5. Hab. Island of Zebu, Philippine Islands (on the rocks at half-tide) ; Cuming. Of light substance, with the thread-like ridges more than usually distant, while the cohiuiella is peculiar in beins: thiulv contorted. May, 1S57. lUUHna, M. VT. * 4 « ^ ^ 4 > 4 Smvenbv ad etlith Vinosm Brooks Imp. LITTORIN A. Plate VI. Species 25. (Mus. Cuming.) LiTTORlNA ciNGULATA. Litt. testd conico-ovatd, soUd'ms- culd, anfraclibus convexis, spiraliter filoso-costatis, in- terstitiis dense elevato-striatis ; cinereo-rufd, cosiis pallidis, obscure maculatis ; aperturd parviusculd, co- lumelld subcallosd, alba. The belted Littorina. Shell conically ovate, rather solid, whorls convex, spirally thread-ribbed, inter- stices densely elevately striated ; ash-red, ribs pale, obscurely spotted ; aperture rather small, columella rather callous, white. Philippi, Pro. Zool. Soc. 1845, p. U2. Hah. North coast of New Holland ; Driiig. Distinguished by its strong spiral ridges, the interstices between which are prominently excavated and of darker colour. Species 36. (Fig. a, b, Mus. Cuming.) LiTTOKlNA castanea. Litl. tcstd siibgloboso-ovatd, solidi- usculd, spird brevi, anfractibus superne depressiuscuUs, deinde rolundatis et spiralUer carinatis, carinis regu- laribus, subdistantibus ; intense rufo-castaned ; aper- turd cireulari, columelld late callosd. The chestnut Littorina. Shell somewhat globosely ovate, rather solid, spire short, whorls somewhat de- pressed at the upper part, then rounded and spirally keeled, keels regular, rather distant ; deep reddish- chestnut; aperture circular, columella broadly cal- lous. Adams and Reeve, Moll. Voy. Samarang, p. 49. pi. 11. f. 8. Hab. Eastern Seas ; Belcher. Of a dark reddish-chestnut colour, encircled throughout witii stron 4 4 ^ « 4 ^ Sowcrby tkl AlitK . ASncent Biooks Imp LITTORIN A. Plate XIII. Species 63. (Mus. Cuming.) LiTTORiNA LUCTUOSA. Litt. testd acuminato-ovatd, im- perforatd, anfractihm decUvi-cotwexis, hngitudinali- ter plicato-driath, infenie spiraliter sulcatis ; livido- fmcd; aperturd parviuscicld, columella ptirpuroicente. The sad Littorina. Shell acumiiinlely ovate, imper- forated, wliorls slantingly convex, longitudinally pli- cately striated, spirally grooved towards the lower part; livid-brown; aperture rather small, columella piu'plish. Hab. New Zealand. A rather light acuminated species, of a bluish livid- brown colour, cliestnut in the aperture. Species 6G. (Fig. a, 6, Mus. Cuming.) LiTTORiNA punctata. ZM. testd ovato-veniricosd, spird breviuscidd, acuta, anfractibtts convexis, regttlariter Uneari-siilcatis ; olivaceo-fuscd, punctk albis quadra- its midiqiie tessellatd ; aperturd subpaiuld, columelld late appressd. The dotted Littokina. Shell ovately ventricose, spire rather short, sharp, whorls convex, regularly linearly grooved ; olive-brown, tessellated throughout with square white dots ; aperture rather open, columella broadly appressed. Turbo punctata, Gmelin, Syst. Nat. p. 3597. Le Marnat, Adanson. Hub. Senegal. Mostly of ventricose growth, thickly tessellated with small square white dots upon a dark-olive ground. Species 67. (Fig. a, b, c, d, Mus. Cuming.) LiTTORiNA UNDfLATA. Litt. tcstd ovato-conoided, imper- foratd, soUdimculd, anfractibus superne subconcavo- mpressis, deinde convexis, nunc lievibiis, nunc suleatis et liratis; lutescente-albd, rufo-fusco seepe faseiatd aut Jlammatd ; aperturd mbcontractd, columelld cal- loso-appremd, intense violacea. The waved Littorina. Shell ovately conoid, imper- forated, rather solid, whorls slightly eoncavely im- round the upper part, then convex, some- times smooth, sometimes grooved and ridged ; yel- lowish white, frequently banded or flamed with red- brown ; aperture rather contracted, columella cal- lously appressed, deep violet. Gray, iiool. Beechey's Voyage, p. 140. Hab. Society and Philippine Islands. This is the most variable of all Littorina. Some spe- cimens are smooth and marbled with chestnut-brown, others pale and spirally ridge-striated ; but all are charac- terized by a deep-violet enamelled columella. Species 68. (Fig. a, b, Mus. Cuming.) Littorina granularis. Litt. testd ovato-ventricosd, spird pared, acutd, anfractibus convexis, dense irregu- lariter granoso-liratis ; fulvd, cceruleo tinctd; coln- >nelld late excavatd et dilatatd, carneo-fuscescente. The grained Littorina. Shell ovately ventricose, spire small, sharp, whorls convex, closely irregularly granosely ridged ; fulvous, tinged with blue ; colu- mella broadly excavated and dilated, flesh-brown. Gray, Zool. Beechey's Voyage, p. 140. Hab. ? The grained ridges are on the middle and upper por- tion of the whorls; on the lower part the ridges are smooth, and more numerous and close-set. Species 69. (Mus. Cuming.) Littorina ARCTICA. Litt. testd subglobosd, spird breti- usculd, anfractibus rotundatis, plus minus erosis ; sordide fused; aperturd subcirculari, columella sub- callosd. The ARCTIC Littorina. Shell subglobose, spire rather short, obtuse, whorls rounded, more or less eroded ; dirty-brown; aperture nearly circular, columella somewhat callous. MbiiLER, Fauna Gronlandica, p. 9. Hab. Kamtschatka, Nova Zembla. A globose, rather light inflated species, of a dingy hue, generally more or less eroded. June, 1857. Uttonna Fl. UV. 4 73 a- ( Mxiderately enlarged . ) So'-^^Br"byM.eLllth, Yinceat Ircoofc Imp. L I T T 0 K, I N A. Plate XIV. Species 70. (Mus. Cuming.) LiTTOKiNA DEBiLis. Litt. testd subpyramidali-conoiM, solidiumild, anfractibus plano-convexU, infern^ ab- rupte angnlatk, laviffata, nitenie, tenumini^ Uneari- sulcatd; ceerulescente-albd, lineis carneia muMatis paUidissmis longUudinaliter pictd ; aperturd parvms- culd, columella callosd, violaceo-fmcescertfe. The faint Littobina. SheU somewhat pyramidally conoid, ratber solid, whorls flatly convex, abruptly angled at the lower part ; smooth, shining, very finely linearly gi-ooved ; bluish-white, painted longitudinally with faint zigzag flesh-Unes ; aperture rather smaU, columella callous, violet-brown. Philippi, Pro. Zool. Soc. 1845, p. 140. Hab. ? A solid subpyramidal shell, of a smooth, bluish aspect, marked with faint zigzag flesh-lines. the upper part, slanting, then stout, solid ; whitish, banded with a livid-red; aperture small, columella somewhat callous, red. Turbo Neriloides, Linnffius, Syst. Nat. p. 1232. Eelix petraa, Montagu. Turbo petr tens, Maton and Rackett. Turbo ccerulesceim, Lamarck. Littorina Basieroti, Payraudeau. Rissoa elegans, Kisso. Paludina glabrata, Ziegler. Liltorina cesrulea, Costa. Littorina petraa, Gray. Littorina Neritoides, Philippi. Hab. Mediterranean and other seas of Europe. To Dr. Philippi is due the merit of having rcc this species the true Linn^an Turbo Neritoides. Species 71. (Pig- a, b, Mus. Cuming.) Littorina balteata. Litt. testa gioboso-turbinaid, spird brevi, ttcutd, anfractibus superne declivibus, deinde ventricosis, spiraliter fortiter earinatis, carinis subdis-^ tantibus obsolete granosis ; livido-plmnbed ; aperturd parvd, columelld late excavatd et dilatatd. The belted Littorina. Shell globosely turbinated, spire short, sharp, whorls slanting round the upper part, then ventrieose, spirally strongly keeled, keels rather distant, obsoletely grained; livid lead-colour; aperture smaU, columella broadly excavated and di- lated. Eah. China; Fortune. Allied in form to L. brevicula, but of thinner substance, with the ribs sharper and more distant. Species 72. (Mus. Ciuning.) Littorina Neritoides. Litt. testa ovato-conoided, spird breviicsculd, anfractibits lavibus, superne subimpressis, declivibus, deinde obesis, solidis ; albidd, Uvido-ru/es- cente fasciatd; aperturd parvd, columella subcallosd, rufd. The Neritoid Littorina. Shell ovately conoid, spire rather short, whorls smooth, slightly impressed round Fig. 73. (Mus. Cuming.) This sheU, L. Canariensis of D'Orbigny, is identi vitli L. striata, King. Species 74- (Mus. Cuming.) Littorina NoviE-ZELANDi.E. Litt. testa subgloboso- iurbinatd, spird breviuseuld, acutissimd, anfractibus ro- tundatis, spiraliter irregulariter Uneari-sulcatis ; opa- co-albd, obscure palMissime rufo-famviulaid ; aper- turd subcirculariyfauce castaneo-fuscd, columelld latis- sime excavatd, livido-castaned. The New Zealand Littorina. Shell somewhat glo- bosely turbinated, spire rather short, very sharp, whorls rounded, spirally irregularly linearly grooved; opake-white, obscurely very faintly red-flamed ; aper- ture nearly rounded, chestnut-brown in tlie interior, columella very broadly excavated, Uvid-clifistnut. HaL New Zealand. Curiously resembling L. Jfricana in colour and mark- in'', but of lighter and rounder form. Species 75. (Fig. a, b, ilus. Cuming.) Littorina Knysnaensis. Litt. testa subgloboso-turbi- natd, temiiculd, venlricosu, anfractibus declivi-convexis, dense spiraliter elevato-striatis ; aM,ferrugineo-fusco 1857. LITTORINA.— Plate XIV. lentiginosd, inferne livido-tiigricante tinctd; apertura fauce nigricante-castmied, colnmlld callosd, rufd, ml- The Knysna Littorina. SheU somewhat globosely turbinated, rather thin, ventrinose, whorls slantingly convex, densely spirally elevately striated ; whitish, freckled with rust-brown, tinged with livid-black to- wards the lower part; interior of the aperture black- ish-chestnut, columella callous, red, slightly exca- vated. Krauss, Philippi, Abbild. und Besch. Conch, pi. 4. f. 4. Hob. Mouth of the Knysna, Cape of Good Hope. There is a peculiarity in the freckled marking of this species which renders it easily recognizable. Species 76. (Mus. Cuming.) LiTTOKiNA GUTTATA. Litt. testd subpyramidali-conoided, solidd, anfractibm plano-convexis, inferne abrvpie an- gulatis, lavigatis ; olivaceo-grised, punctis albis lenti- ginosd et tcssellatd; aperturd parviusculd, columella callosd, rufescente. The spotted Littorina. SheU somewhat pyramidally conoid, solid, whorls flatly convex, abruptly angled at the lower part, smooth ; olive-grey, freckled and tessellated with white dots ; aperture rather small, columella callous, reddish. Philippi, Abbild. und Besch. Conch, pi. 4. f. 7. Phadanella punctata, Pfeiffer. Uab. St. Vincent, Cape de Verds. Of rather solid acuminated growth, freckled throughout with whitish dots upon an olive-grey ground. Littemm.Tl.lY. # % 4 ^ 4 ( Consider abh' eaalaiiecl.) Yinoent Brooks Imp LTTTORINA. Plate XV. i 77. (Mus. Cuming.) LiTTOUiN.^ MESPILUM. Litt. testd oUvM conoided, sub- umhiUcatd, solidiusculd, anfractibus convexis, lavibus ; fuscescente-rufd ; aperturd mhcirculari, cohmelld cal- losd. The medlar Littoeina. Shell obtusely conoid, slightly umbilicated, rather solid, whorls convex, smooth; brownish-red; aperture nearly circular, columella callous. HeUx vmpilum, MuhlfekU, Verh. Berl. Ges. Nat. vol. i. p. 219. pi. 8. f. 8. Littorinafusca, Pfeiffer. LiUorina mespihmi, Philippi. Littorina Naticoides, D'Orbigny. Hab. Jamaica. A small solid shell, of a characteristic brownish-red or drab colour. grained ril)s, which, in specimens of more mature growth, become somewhat obsolete. Species 7S. (Fig. a, b, Mus. Cuming.) Littorina Thersites. Litt. testa obtuse ovata, soMius- culd, spird brevi, acutd, anfractibus tenne linean-sul- catis, plano-convexis, in/erne subangulatis ; attidd, virescente-caruleo fasciatd ; cohmelld appresso-exca- vatd ; apertum fauce purpttreo-fnscd. The Theusites Littorina. Shell obtusely ovate, ra- ther solid, spire short, sharp, whorls finely linearly grooved, flatly convex, slightly angled at the lower part; whitish, banded with greenish-blue; columella appressly excavated; interior of aperture puqile- brown. Hab. Valparaiso. A small, solid, humped shell, conspicuously linearly grooved, of a pale ash-colour, banded with grey-blue. Species 80. (Fig. 80 a, 4, and 81, Mus. Cuming.) Littorina picta. Litt. testd ovato-turbinatd, anfractibus convexis vel obsolete lineari-suleatii, inlerdim granu- latis; olivaceo-nigricante, maculis grandibus amphs irregular iter marmoratd ; columella excavatd, aper- turafauce intense purpured. The painted Littorina. Shell ovately turbinated, whorls convex or obsoletely linearly grooved, .some- times granulated; olive-black, irregularly marbled with large white spots; columella excavated, inte- rior of the aperture deep-purple. Philippi, Abbild. und Besch. Conch, pi. 3. f. 36. Hab. Sandwich Islands. The specimen of L. picta here represented is Dr. Phi- lippi's var. marmorata. Species 79. (Mus. Cuming.) Littorina grano-costata. Litt. testd subglobosd, spird brevi, acuta, anfractibus convexis, subventricom, spi- raliler lineari-sulcatis, longitndinaliter granoso-cos- tatis; carukscente-albd ; cohmelld appresso-excavatd ; aperturm fauce purpureo-fmcd. The grain-ribbed Littorina. Shell sub-globose, spire short, sharp, whorls convex, sub-ventricose, spirally linearly grooved, longitudinally granosely ribbed ; bluish-white ; columella appressly excavated ; interior of the aperture purple-brown. Hab. Brisbane Water, Australia ; Strange. A pretty little opake blue-white sheU, latticed with Species 82. (Fig. a, b, Mus. Cuming.) Littorina Feejeensis. Litt. testd ovato-conoided, tenui- culd, spird brevi, acuta, anfractibus ventricosis, planu- latis, inferne angulatis, undique irregulariter granoso- liratis; nigricante, granulis pallidis ; columella exca- vatd, apei-tura fauce purpureo-fuscd. The Feejee Littorina. Shell ovately conoid, rather thin, spire short, sharp, whorls ventricose, rather flat, angled at the lower part, everywhere irregularly granosely ridged ; blackish, granules pale ; columella excavated, interior of the aperture purple-brown. Hab. Feejee Islands ; Macgillivray. A dull, angularly convoluted shell, encircled with small chains of whitish grains. Species 83. (Mus. Cuming.) Littorina picea. Litt. testd obtuse conoided, anfracti- bus plano-convexis, oblique striatis et interdum gram-^ latis, inferne angulatis ; intense piceo-nigrd ; aperturd parvd, columelld excavatd, purpured. The pitchy Littorina. Shell obtusely conoid, whorls flatly convex, obliquely striated, sometimes granu- lated, angled at the lower part ; dark pitch-black ; aperture small, columella excavated, purplish. Hab. ? A solid, pitch-dark, berry-like shell, of a distinct typical form from any other of the genus. June, 1857. lmmnxi,n.M[. 4 4 4 (Considerably eaalargecl.) Sovrerby dil.dlitii. ^ncent Bxooks Ttsfi . LITTORINA. Plate X\I. Species 84. (Mus. Cuming.) TjITTORINa Paludinella. Litt. testa mbglobosd, tenid, corned, spird parvd, acuta, anfractibus ad suturam mbimpressis, rotutidalis, lavibus ; olivaceo-castaned ; aperttird subcirculari, columella excavatd, callosd. TuE LITTLE Paludina Littorina. Sliell subglobose, tbin, horny, spire small, sharp, whorls rather im- pressed at the suture, rounded, smooth ; olive-chest- nut ; aperture nearly circular, columella excavated, callous. Hab. Tasmania. A minute, dark-brown, horny-like shell, with the whorls narrow and more than usually rounded. Species 85. (Fig. a, b, Mus. Cuming.) LiTTORiKA Adamsii. Litt. teUd ovato-turbimtd, subtnr- rild, anfractibus Uiteari-sulcatis, superne et iti/ente au- gulatis ; lutescente-albd, ptmctis fuscis vittatd, ptmc- fis ad angulum inferum majoribiis ; aperturd subcir- culari. Adams's Littorina. Shell ovately turbinated, somewhat turreted, whorls linearly grooved, angled above and below; yellowish-white, filleted with brown dots, dots larger at the lower angle ; aperture nearly cir- cular. Littorina pukheUa, C. B. Adams, MS., Mus. Cuming. Hab. Jamaica. A minute yellowish shell, of a peculiar turreted form, filleted with brown dots. Distinguished by a very characteristic clear pattern of small, distiuct red dots upon a blue-white ground. Species 8(1. (Mus. Cuming.) Littorina minima. Litt. testa otatd, Natic(pformi, sub- unibilicatd, spird parvd, acuta, anfractibus convexis, tdtimo subexpanso; cartilescente-albd, punctis pur- pureo-fmcis regulariter seriatim aspersd ; columella plano-callosd, apertura fauce violaceo-purpured. The very small Littorina. Shell ovate, Natica- shaped, slightly umbilicated, spire small, sharp, whorls convex, the last somewhat exiwnded; bluish-white, sprinkled with regular rows of purple-brown dots; columella flatly callous, interior of the aperture vio- let-purple. Tnrbo minimus. Wood, Index Test. Supp. pi. 6. f. 29. Species 87. (Mus. Cuming.) Littorina rufa. Litt. testd ovato-tiirbinatd, solidiim- culd, minute wMlicatd, anfractibus declivi-eonvexis, lavibus, politis; rufofuscescerite; aperturd parvd, fauce callosd. The red Littorina. Shell ovately turbiiuited, rather solid, minutely umbilicated, whorls slantingly convex, smooth, polished; red-brown; aperture small, inte- rior callous. Recluz, MS., Mus. Cuming. Hab. ? A minute, solid, bright red-brown shell, with a liright polished surface. Species 88. (Mus. Cuming.) Littorina araucana. Litt. testd oblomjo-omtd, spirit elevatd, anfractibus declivi-eonvexis, tavigatis ; pur- pureo-castaned ; aperturd ovatd, parvinsculd, colu- mella subexcavatd, ad extremitatem dilalatd, apertura- fauce nigrican te-p nrp ured. The slender Littorina. Shell oblong-ovate, spire raised, whorls slantingly convex, smooth; purple- chestnut; aperture ovate, rather small, columella slightly excavated, dilated at the extremity, interior of the aperture blackish-purple. D'Orbigny, Voy. dans I'Ame'r. Mcrid. p. 393. pi. 58. f. 3, 4. A dark, shining, chestnut shell, faintly banded, of a slender acuminated form. Si>ecie3 S9. (]\Ius. Cuming.) Littorina porcata. Litt. testd globoso-ovatd, subveiitri- cosd, profundi umbilicatd, spird parvd, anfractibus declivi-eonvexis, inferni expansis, uttdique spiraliter costal is; cierulesceute-alld ; columella excavatd, aper- ture fance molaceo-ptirpured. The ribbed Littorina. Shell globosely ovate, subven- tricose, deeply umbilicated, spire small, whorls slant- ingly convex, expanded towards the lower part, spi- June, 1857. LITTOEINA.— Plate XVI, rally ribbed throughout; bluish-white; colmuelki excavated, interior of the aperture violet-purple. PuiLlPPi, Pro. Zool. Soc. 1845, p. 139. Hah. Galapagos Islands (found on high exposed rocks) ; Cuming. A small, open, bluish-white shell, spirally ribbed, violet- purple in the interior. Species 90. (Fig. a, h, Mus. Cuming.) LiTTORiNA TABALis. Litt. testd globosd, tenui, spird brevissimd, minutd, anfractibus angudu, ultimo ex- pamo ; castaneo-rufd, lineis obscure reticulata; aper- iurd ampld, columella excavatd. The little bean Littorina. Shell globose, thin, spire very short, minute, whorls narrow, the last expanded ; chestnut-red, obscurely reticulated with lines ; aper- ture large, columella excavated. Turbo fabalis. Zoological Journal, vol. ii. p. 366. pi. 13. f. 10. Littoritui Beanii, Macgillivrav. Littorina fabalis, Thorpe. Hub. Northern shores of England. It is somewhat doubtful whether this little species is uot an extreme variety of L. littoralis. Species 91. (Mus. Cuming.) Littorina saxatilis. Litt. testa ovato-turbinaid, spird acuta, anfractibns rotundatis, spiraliter tenuissinw li- neari-sulcatis ; olivaceo-fuscd, nitente ; aperturd cir- eulari, columella tenue callosd. The rock-inhabiting Littorina. Shell ovately turbi- nated, spire sharp, whorls rounded, spirally very finely linearly grooved ; olive-brown, shining ; aper- ture circular, columella thinly callous. Johnston, Berwick Club, vol. i. p. 268. • Littorina neglecta. Bean. Hab. Northern shores of England. This also is referred by some authors to a typical Bri- tish species, L. rudis. Litlemm PI .rni % % 4 ^ 96 h ♦ ;iiy, di:l,et^jtl'- "ViTj; ent B r 3;)l!s ,in^ . L I T T 0 R I N A. Plate XVII. Species 93. (Mus. Cuiuing.) LiTTORiNA DECOLLATA. Litt. testcl ovatd, apice obtusd, erosa, lavissimd, albidd, fascia lata carulescente cin- gidatd ; anfractibus parum eonvexis, ultimo vix angu- lato ; aperturd ovatd, nigro-fuscd, zonis duabiis albis, columella excavato-depressd, nigro-fuscd. The decollated Littorina. Shell ovate, obtuse and eroded at the apex, very smooth, whitish, encircled with a broad blue band ; whorls but little convex, the last slightly angled ; aperture ovate, blackish- brown, with two white zones, columella excavately depressed, blackish-brown. Krauss, Philippi, Alibild. und Besch. Conch, vol. ii. p. 197. pi. 4. f. 3. Hab. Natal. A small patulate species, of a jjcculiar blue colour, white at the sutures, with aperture and columella dark chestnut- brown. Species 93. (Mus. Cuming.) Littorina ventricosa. Litt. testa ovatd, venin'cosn, basi rotuniald, trunsversim sulcatd, snlcis nonnunquam granulatis ; albidd, strigis undatis rufis pictd ; anfrac- tibus eonvexis ; aperturd semiorbiculari, patuld, earned, columelld excavato-depressd, stibcallosd, earned. The ventbicose Littorina. Shell ovate, ventricose, rounded at the base, transversely grooved, grooves sometimes granulated ; whitish, painted with waved red streaks ; whorls convex ; aperture semiorbicular, patulate, flesh-colour, columella excavately (Kiu'cssed, rather callous, flesh-colour. Philippi, Abbild. und Besch. Conch, vol. iii. p. 15. pi. 6. f. 19. Hab. Pulo-Penang. A liueai'ly grooved inflated shell, faintly red-streaked, with the aperture and columella of a characteristic flesh- Species 94. (Mus. Cuming.) Littorina Diemenensis. Litt. testa ovato-oblovgd, btisi subangulatd, transoersim tenuissinie striata, albido- ccerulescente ; anfractibus planiusculis, ultimo medio carulescente vittato ; aperturd ovatd, parviusculd, eastaneo-fuscd. The Diemen Littorina. Siiell ovateiy oblong, .slightly angled at the base, transversely very flnely striated, whitish-blue ; whorls rather fiat, the last blue-banded Oclobi round the middle ; aperture ovate, rather small, chest- nut-brown. QuoY and Gaimard, Voy. de I'Astrolabe, vol. ii. p. 479. pi. 33. f. 8-11. Hab. New Zealand. A rather solid oblong species, conspicuously blue- banded, shining chestimt-brown in the aperture. Species 95. (Mus. Cuming.) Littorina l,evis. Litt. testa ovato-oblongd, acuta, albidd, cinereo marmoratd, interdum caruleo fasciatd ; anfractibus parum eonvexis, laoibus, sub lente spiraliter striatis, ultimo basi angulaiv ; aperturd ovatd, fusco- violaced, columelld excavato-depressd, fusco-violaced. The smooth Littorina. Shell ovateiy oblong, sharp, whitish, marbled with ash, sometimes blue-banded ; whorls but little convex, smooth, beneath the lens spirally striated, last whorl angled at the base ; aper- ture ovate, brownish-violet, columella excavately de- pressed, brownish-violet. Philippi, Pro. Zool. Soc. 1845, p. 140. Hab. ? A shell of rather solid growth, angled towards tlie base, blue-banded or mottled, while the aperture and columella are deep brownish-violet. Species 96. (Fig. a, b, Mus. Cuming.) Littorina Sayi. Litt. iestd ovatd, acutd, subventricosd, Iraiisversim multimlcatd, alba, punctis pallid^ rufis ornatd ; spird violascente, anfractibus convexiusculis, superne declivibus ; aperturd ovato-orbiculari, colu- melld riifd. Say's Littorina. Shell ovate, sharp, rather ventricose, tva\isversely many-grooved, white, ornamented with l)ale red dots; spire violet, whorls rather convex, slanting round the upper part ; aperture ovate-orbi- cular, columella red. Philippi, Pro. Zool. Soc. 1845, p. 140. Hab. Florida. Of rather solid, ventricose growth, closely spirally grooved throughout, with the columella characteristically stained with red. 1-, 1858. LITTORINA.— Plate XVII. Species 97. (Mus. Cuming.) LiTTORiNA coLUMELLABis. LUt. testd ovato-couicd, acu- ta, subventricosd, dense striata, albidd, interdttm punc- tis luteis ferruffineisve sape in strigis conflnentibus pictd; anfraetibus convexis, mduris excamtis ; aper- turd semiorbiculari, columella excavato-depressd,fusco- violaceo tinctd. The pillared Littorina. Shell ovately conical, sharp, rather ventricose, densely striated, whitish, sometimes painted with yellow or rust spots, often running into streaks ; whorls convex, sutures excavated ; aperture semiorbicular; columella excavately depressed, stained with brownish-violet. D'Orbigny, Voy. dans I'Amer. Merid. u. 284. Hab. Pernambuco. It is not without some doubt as to its correctness, that I adopt this shell as M. D'Orbigny's L. columellaris, from Pernambuco. It belongs, rather, to the eastern type of the genus, represented by L. undulala, and approaches closely to some colourless varieties of that species. Species 98. (Mus. Cuming.) Littorina obligata. Litt. testd globoso-tnrbinatd, (eniii, ventricosd, spiraliter dense elevato-striatd, olivaced vel rufo-castaned, fasciis luteolis interruptis interdum cin- gulatd ; an/ractibus rotundalis ; aperturd orbicnlari. The tied Littorina. Shell globosely turbinated, thin, ventricose, spirally densely elevately striated, olive or reddish-chestnut, sometimes encircled with inter- rupted yellowish bands; whorls rounded; aperture orbicular. Turbo obligaius, Say, Journ. Acad. Nat. Sci. Philadelphia, vol. ii. p. 241. Littorina rudis, Gould. Hab. Maine, United States. A light, turbinated shell, mostly of a bright reddish- chestnut colour, more or less freckled with yellowish interrupted bands. Species 99. (Mus. Cuming.) Littorina millegrana. Litt. testd ovato-conoided, ven- tricosd, acuta, albidd; anfractihus convexis, spiraliter dense grano-liratis ; aperturd suborbicnlari, carneo-fus- cescente. The thousand-grained Littorina. Shell ovately conoid, ventricose, sharp, whitish ; whorls convex, spirally densely grain-ridged ; aperture nearly orbicu- lar, flesh-brown. Philippi, Abbild. und Besch. Conch, vol. iii. p. 65. pi. 7. f. 15. Hab. Red Sea. Allied to the group figured in Plate II., of which L. di- latata is the type. Species 100. (]\Ius. Cuming.) Littorina Mauritian a. Litt. testd ovato-conicd, solidd, ccei-ulescente-albd, transversim tenuissime striatd; an- fraetibus parum convexis, ultimo subangulato ; aper- turd purpureo-fuscd, fascid solitarid albd basalt. The Mauritius Littorina. Shell ovately conical, solid, bluish-white, transversely very finely striated ; whorls but little convex, the last slightly angled; aperture purple-brown, with a solitary white band at the base. Phasianella Mauritiana, Lamarck, Anim. sans vert. vol. ii. p. 244. Littorina unifasciata, Gray. Hab. Mauritius. New Holland. Distinguished by its solid, sharply conical form, and peculiarity of colouring. LittoriimPlU'lH^ w ^iflfp Sawerhy, del. et lith. "Virxeni Brocks. I-mp. LITTORINA. Plate XVIII. Species 101. (Mus. Brit.) LiTToniN.\ TNTERMEDLi. Litt. t.est/i ohlongo-cordcd, hasi ventricosd, ternd, colore vurid, lineis impresm exaratd; apird acutd, an/raciiiua convexiuscidis, ultimo rotun- dato ; columelld attd vel violaced. The intermediate Littorina. Shell oblong, conical, ventrieose at the base, thin, various in colour, grooved with impressed lines , spire sharp, whorls convex, the last rounded ; columella white or violet. PuiLiPPi, Pro. Zool. Soc. 1845, p. 141. Ilab. Eed Sea, Natal, New Holland, Philippine Islands, Tahiti. Closely allied to L. scabra, of which there are man}' forms not always readily definable. Species 102. (Mus. Brit.) LiTTOEiXA Natalensis. Lilt, testdparvd, omto-conicd^ acutd, cinered, tratisversim striata, tuherculato-twdosd ; apertiird ovali, columelld nigra, planimculd, infeme productd et dilatatd. The Natal Littorina. Shell small, ovately conical, sharp, ash-coloured, transversely striated and tubercu- larly nodose ; aperture oval, columella black, rather flat, produced and dilated at the lower part. Krauss, Philippi, Abbild. und Besch. Couch, vol. ii. p. 100. pi. 3. f. 4. Ilab. Natal. A small, solid species, belonging to that characteristic group of the genus represented most conspicuously by L. dilatata. Fig. 103. (Mus. Brit.) Having figured a transversely banded example of Litto- rina fasciata. Gray, at Plate IV. fig. 20, which is not very typical of its general character, a specimen is here repre- seuted with longitudinally waved bands. Species 104. (Mus. Brit.) Littorina glabeata. Litt. testd ovato-oblongd, acidd, albido-carned, strigis pallide fuscis obliquis pictd ; an- fractibtis parnm convexis, laviius, ultimo basi angu- lato ; apertiird ovatd, ri'feseeiUe, columelld depressd, violaced. The smooth Littorina." Shell ovately oblong, sharp, whitish-flesh-colour, painted with oblique pale-brown streaks ; whorls but little convex, smooth, the last angled ; aperture ovate, reddish, columella depressed, violet. Philippi, Pro. Zool. Soc. 1845, p. 140. Hob. Payta, Peru ; Cuming. Of a rather solid narrowly conical form, smooth, painted in a characteristic manner with oblique brown hair-streaks. Species 105. (Mus. Cuming.) Littorina trochoides. Litt. testd ehngato-conicd, subpyramidali, sordide grised ; anfractibus convexis, valide tubercidato-nodosis, ad snturam impressis; aperturd parvd, subcjuadrato-orbicidari, columelld CTcavafo-depressd, idgrescente. The trochoid Littorina. Shell elongately conical, somewhat pyramidal, dull grey ; whorls convex, strongly tubercularly nodose, impressed at the suture ; aperture small, somewhat squarely orbicular, columella excavately depressed, blackish. Gray, Zoology of Beechey's Voyage, p. 140. ffai. ? ' Cliiefly distinguished from its congeners by a more con- tracted and pyramidal growth. Species 106. (Mus. Cuming.) Littorina granosa. Litt. testd ovato-ventricosd, crassd, granoso-tuberculatd, sordide grised; aperturd parvd, columelld arcuato-depressd, subcallosd. The grained Littorina. Shell ovately ventrieose, thick, granosely tubercled, dull grey ; aperture small, columella arcuately depressed, rather callous. Philippi, Abbild. und Besch. Conch, vol. iii. p. 65. pi. 7. f 14. Hab. Guinea, Liberia. The growth of this species is quite the opposite to the preceding, being broad and obese though belonging to the same type. Species 107. (Mus. Brit.) Littorina modesta. Litt. testd ovato-oblongd, albidd. October, 1858. LITTORINA.— Plate XVIII. rarius obsolete rufo-pmictatd, transveisim profundi sulcata; anfractibus convexiusculis ; aperturd semi- orbicularis columella latissimi excavato-depressd, au- ranlio-fmcd, supertie purpureo-maculaid. The modest Littorina. Shell ovately oblong, whitish, rarely obsoletely dotted with red, transversely deeply grooved ; whorls rather convex ; aperture semiorbi- cular, columella very broadly excavately depressed, orange-brown, blotched with purple at the upper part. Philippi, Pro. Zool. Soc. 1845, p. Ul. Hab. Sitka, A duU-white shell, sometimes speckled with red, chiefly distinguished by the regularity with which it is spirally grooved. LITTORINA. Plate. aberrans, I'IdUppi XII. Adamsii, Reeve XVI. Africans, PhiUppi VIII. ahenea, Reeve III. albicans, Metcalfe IX. ambigua, NuttaM XII. araucana, B'Orhigny XVI. arboricola. Reeve VI. arctica, MUller XTII. arenica, Nuttall VIII. balteata, Reeoe XIV. Baderoli, Payrautleau XIV. Bi'uuii, MacgiUivray XV [. brcvioula {Turbo), Philippi X. Cfsrulea, Costa XIV. buUata (Troehtis), Martyii .... I. Canariensis, D'Orbigny \lll. carinata, D'Orbiffiiy X. carinifera {Phasianella), Menkc VI. castanea, Adams and Reeve .... VI. castaitea, Desliaycs X. cincta, Qitoi/ : XI. cingulata, PJtUippi. VI. columellai'is, D'Orb'ujmj XVII. coniea, Philippi VIII. coronaria {Monodoiita), Lam. . . I. Cumingii, Pldlippi II. debilis, Philippi XIV. decoUata, Erauss XVII Diemenensis, Quay XVII. dilatata, D'Orbigriy II. fabaUs (3'«r5o) XVI. fasciata, &ray IV. Feejeensis, Reeve . ... XV, filosa, Sowerby V. flammea, Philippi IX. Portunei, Reeve IX. Frascri, Reeve X. fusea, Pfeiffer XV. glabrata, P/«7(>i)i XVIII. glans. Reeve XII. grandis, Middendorf III. 36 2 8 70 92 94 9 90 20 82 24 46 42 47 77 104 62 16 grano-costata, Reeve XV. granosa, Philippi XVIII. granulans, Gray XIII. Grccnlandica, Meiilce X. guttata, Philippi XIV. intermedia, Oray XVIII. irrorata {Turbo), Say XI. Knysnaensis, Erauss XIV. tevis, Philippi. . .1 XVII. lemniscata, Philippi II. littoralis {Nerita), Limi VII. littorea {Turbo), Linn IV. luctuosa, Reeve XIII. Malaccana, Philippi II. Manritiana (P/m4Ja»eWa), Lam. XVII. melanostoma. Gray IX. mespilum {Helix), Miiblfeldt . . XV. millegrana, PhiUppi XVII. minima {Tarbo), Wood XVI. modesta, Philippi XVIII. rauricata {Turbo), Linn 11. Natalensis, Erauss XVIII. Naticoides, D'Orbigny X^^ uebulosa {Phasianella) , Lam. . . XL neglecta. Bean XVI. Neritoides {Turbo), Linn XIV. Newcoinbi, Reeve VI. niijroliueata. Gray VII. nodosa, Gray II. Novse-Zelandiai, Reeve XIV. obesa, Sowerby IX. obligata {Turbo), Say XVII. obtusata, Mcukc VII. pagodus {Turbo), Linn I. pallescciis, Philippi IX. palliata {Tarbo), Say \il. Paludinella, Reeve XVI. papulosa, Deshayes I. perdix. King VI. pehva. Gray XIV. Philippiana, Reeve V. picea, Reeve XV. 7 100 LITTORINA.— INDEX. picta, Philippi XV. Pintado {Turbo), Wood XI. Planaxis, Nitttall VIII. porcata, Philippi XVI. puMeUa, C. B. Adams XVI. pulchra, Sowerlnj III. punctata (r«r4o), Gmelin .. XIIl. pyramidalis, Qiioy II. i-udis {Turbo), Donovan VII. rufa, Rechiz XVI. rugosa, Menke VII. saxatilis, Jolmston XVI. Sayi, Fliilippi XVII. scabra {Helix), Limi V. Sieboldii, Philippi . V. simplex, lieeve |XI1. Sitchana, Philippi X. spinulosa, Philippi II. striata, Kinr/ VUl. subnodosa, Philippi II. mlcaia, Menke X. 52 sulculosa, Philippi VIII. 39 tectum-Persicura {Turbo), Linn. I. 3 teiiebrata, Nuttall XI. .58 tenebrosa {Turbo), Montagu . . . VII. 30 tenuis, Philippi VIII. 35 tesseUata, Philippi X. 48 Tbersites, TJeeoe XV. 78 trochoides. Gray XVIII. 105 undulata, Gray XIII. 67 undulata, D'Orbigny X. 48 unifasciata, Gxay XVII. 100 varia, Sowerby IV. 19 ventricosa, Philippi XVII. 93 v\^%, Menke II. 12 vulgaris, Sowerby IV. 18 zebra (T«rH Wood XII. 61 ziczac {Trochus), Chemnitz .... XI. 57 zonaria, Bezn VII. 33 MONOGRAPH OF THE GENUS SOLETELLINA, •' My soul is full of longing For the secret of tlie sea, And the heart of the great ocean Sends a thrilling pulse through me." Lontjfellun SoletdlmcLj IPL I. ^^% f Sowerty id etlitK^ %icen.t Brooks Ie SOLETELLINA. Plate I. Gonus SOLETELLINA, Be Blahmille. Testa oblougo-trausversa vel ovata, compressa, plerumqu (eqidvalvk, mbaquilateralis, lavigata vel concentrice striata, plerumqite purpurea, poslice sape biradiata, epidennide corned inditta, latere atUico rotundato, pos- tico vario, mine brevi, iruncato, nunc acuminato, um- boiiibm parvis. Cardo dente unico parvo ereclo in valvd sinistra, duobus in valvd sinistra interdum M- farcaiis. Ligamentum subamplum, externum, sub cal- lositate oblougd conspicud inte>'7id positutn. Impressio mnscidarix palUi ampliter sinuata. Shell oblong-transverse or ovate, compressed, generally equivalve, nearly equilateral, smooth or concentri- cally striated, generally purple and mostly two-rayed posteriorly, covered with a horny epidermis, anterior side rounded, posterior various, sometimes shortly truncated, sometimes acuminated, umboes small. Hinge with a single small erect tooth in the left valve, two teeth in the right valve, sometimes bifur- cated. Ligament rather large, external, placed upon a conspicuous oblong internal callosity. Muscular impression of the mantle largely sinuous. The genus SoletelUna was founded by Dc Blainville in his ' Manuel de Malacologie ' for the purpose of grouping together " four or five species of Soleii of Lamarck." He does not particularize the species, but takes Lamarck's Solen rostratiis (Solen diphos, Linnaeus) as the type. The genus, as lately arranged and named by M. Deshayes in Mr. Cuming's cabinet, includes but this one Lamarckian species. It includes also the Solen orbicitlatics of Wood, In(.le,x. Test. Supplement, typical of another section ; and, agreeing with these two very well-defined types, we intro- duce a series of twenty-one characteristic species. The species of large size allied to S. diphos are from the Moluccas or Philippine Islands. Of the other division of the geuus the finest and most characteristic example is S. Nuttallii, from California, and an allied species, S. Ja- ponica, which iuiiabits a nearly similar latitude in the opposite hemisphere. An intermediate, represented by J. uitida, appears in New Zealand. 1. (Mus. Cuming.) SoLETELLiN.v coNsoBRiNA. Sol. testd ovato-transversS , jlexuoso-arcuald, sufixquilaterali, rugoso-striald, pur- pnrascente-camled, epidermide corned olivaced indutd, latere antico subangitste rotundato, postico oblique truncato, compress!; rostrato. The allied Soletellina. Shell ovatcly transverse, flexnously arched, nearly equilateral, roughly striated, purple-blue, covered with an olive horny epidermis, anterior side rather narrowly rounded, posterior ob- liquely truncated, compressly beaked. Deshayes, MS., Mus. Cuming. Ilab. Philippine Islands ; Cuming. Distinguished by a compressed beak-like flexure on the posterior side. Species 2. (Mus. Cuming.) Soletellina nymphalis. Sol. testd ovato-transversd, snperne trigond, plam-compressd, vix aquilaterali, Icevigatd, fulvescente-carned, nitente, versus umbones roseo-tinctd, epidermide lutescente corned prope mar- ginem indutd, latere antico late rotundato, postico breviore, subattennato-rostrato. The water Soletellina. Shell ovately transverse, tri- angidar at the upper part, flatly compressed, scarcely equilateral, smooth, fulvous-flesh, shining, stained with rose towards the umboes, covered near the mar- gin with a yellowish horny epidermis, anterior side broadly rounded, posterior shorter, somewhat atte- nuately beaked. Deshayes, MS., Mus. Cuming. Ilab. Australia. An Australian species, of a distinct typical character from the preceding, flat and smooth, sloping triangidarly on each side from the umboes. Species 3. (Mus. Cuming.) Soletellina epidekmia. Sol. testd ovato-transversd, convexiusculd, vix aquilaterali, rude plicato-striatd, sordide calcareo-albd, versus umbones carneo-tinctd, epidermide corned fulvd nitente indutd, latere antico lata rotundato, postico breviore subattenuato-rostrato. The epidermid Soletellina. Shell ovately transverse, rather convex, scarcely equilateral, rudely plieately striated, dull chalk-white, flesh-tinged towards the umboes, covered wilh a fulvous shining horny epi- 1837. SOLETELLINA.— Plate I. dermis, anterior side broadly rounded, posterior side shorter, somewhat attenuately beaked. Deshayes, MS., Mus. Cuming. Hal. Port Adelaide, Australia. More convex than the preceding species, and differing also in being roughly plicately striated, covered with a peculiarly glittering transparent deciduous horny epider- Species 4. (Mus. Cuming.) SoLETELLiNA CuMiNGiANA. Sol. testd oblongo-tratisversS, compressiusculd, ceguilaierali, rugoso-striata, purpu- rmcmtt-caruled, postice biradiatd, epidermlde oUvaced indutd, lateribus superni subatjiiatiler reetis, autico late rolmtdato, posdco oblique rotundato, subflexuoso- impresno. Cuming's Soletellina. Shell oblong-trausverse, rather compressed, equilateral, roughly striated, purple-blue, posteriorly two-rayed, covered with an olive epider- mis, sides almost equally straight at the upper part, anterior broadly rounded, posterior obliquely rounded, slightly flexuously impressed. Deshayes, MS., Mus. Cuming. Hab. Island of Negros, Pliilippines ; Cuming. Tiie form of this elegaut species is simply oblong-ovate, the anterior side being the broader, whilst the posterior is but slightly flexuously impressed. SoUtdUna.Il.II. ^ So-»vercy M «tlith ^fecent Brooks Imp SOLETELLINA Plate II. Species 5. (Mus. Cuming.) SoLETELLiNA Adamsii. Sol. testd elomjato-trattSKersd, convexiusculd, inaquilaterali, cceruleo-purpured, pos- tice birad'iaid, epidermide olivaced nitente indntd, la- tere antico rotundato, postico paiilo lotigiore, oblique compresso-truncato. Adams'8 Soletellina. Shell elongately transverse, ra- ther convex, inequilateral, bluish-purple, posteriorly two-rayed, covered with a shining olive epidermis, anterior side round, posterior a little the longer, ob- liquely compressly truncated. Deshayes, MS., Mus. Cuming. Hab. Island of Negros, Philippines. Chiefly distinguished by the posterior end being slightly obliquely truncated, and rather compressed. Species 6. (Mus. Cuming.) Soletellina nitida. Sol. testd oblongo-ovatd, compres- siusculd, subceguilaterali, purpuraxcente-albd, epider- mide corned Itsvi translucidd nitente indutd, latere antico rotundato, postico breviure, declivi-acuminato, et concentrice rugosd. The shining Soletellina. Shell rather compressed, nearly equilateral, purplish-white, covered with a smooth, shining, transparent, homy epidermis, an- terior side rounded, posterior shorter, slopingly acu- minated, and concentrically wrinkled. Gray, MS., Mus. Brit. Hah. New Zealand ; Strange. Of an extremely delicate purple-white substance, co- vered with a peculiarly clear, glittering, horny epidermis. Species 7. (Mus. Cuming.) Soletellina biradiata. Sol. testd ovato-lramversd, couve.vo-pland, aquilaterali, lavigatd, purpureo et (jriseo trausvenim strigatd, postice biradiata, lateribus superne arcuato-declimbiis, deinde subattenuato-rotmi- datis. The biradiate Soletellina. Shell ovatcly trans- verse, conve.xly flattened, equilateral, smooth, trans- versely streaked with purple and grey, posteriorally two-rayed, sides areuately sloped at the upper part, then somewhat attenuately rounded. Solen biradlatus. Wood, Gen. Conch, pi. 33. f. 1, Index Test. pl. 3. f. 26. Hab. Port Adelaide, Australia. Characterized on the posterior side with two conspicu- ous narrow purple rays, on a fulvous halo-like ground, breaking through the transverse blue and purple streaks. Species 8. (Mus. Cuming.) Soletellina diphos. Sol. testd elottgato-tran-sversd, stib- eompressd, subcequilaterali, purpured, postice biradiata, epidermide corned olivaced indutd, latere antico ro- tundato, postico flexuose subacuminato-rostrato. The two-bayed Soletellina. Shell elongately trans- verse, rather compressed, nearly equilateral, purple, posteriorally two-rayed, covered with an olive horny epidermis, anterior side rounded, posterior flexuously sub-acuminately beaked. Solen diphos, Linnaeus, Mantissa, p. 554. ('hemnitz. Conch. Cab. vol. vi. p. 68. pl. 7. f. 53, 54. Solen rostratus, Lamarck. Psammobia rostrata, Deshayes., Soletellina radiata, De Blainville. Hab. Malacca. Distinguished from its allied species by the flexuous acuminately beaked form of the posterior extremity. January, 1857. MOeUmn^PLin. Viment. Brooks Imp. SOLETELLINA. Species 9. (Mus. Cuming.) SoLETELLiN.v TRUKCATA. Sol. testd ovalo-trmisversa, peculiariier oblique conlortd, suiaqualiferali, inaequi- valvi, valvd sinktrd ccmvexd, dextrd plana, nigricante- purpured, epidermide olivaeed itidutd, latere aniico rotundato, poslico brevi, laiissimi trnncato. The truncated Soletellina. Shell ovaicly transverse, peculiarly obliquely contorted, nearly equilateral, in- equivalve, left valve convex, right flattened, blackish- purple, covered with an olive epidermis, anterior side rounded, posterior short, very broadly truncated. Hab. Moluccas. An interesting species, distinguished from all others by the flattened growth of the right valve, and by its general oblique contortion. Species 10. (Mus. Cuming.) Soletellina siliqva. Sol. testd anguaie tramversd, tenui, aqwlateraU, lavi, carneo-albd, epidermide cor- ned olivaeed translucidd nitente induld, postice pallide biradiatd, latere antico rotundato, postico oblique acu- minato-rotundato . The pod Soletellina. Shell naiTowly transverse, thin, equilateral, smooth, flesh-while, covered with a shin- ing transparent olive horny epidermis, faintly two- rayed on the posterior side, anterior side rounded, posterior obliquely acuminatcly rounded. Hab. New Zealand ; Hart. A delicate flesh-tinged shell, covered with a thin trans- parent shining horny epidermis, exhibiting the two pos- terior rays so frequently characteristic of this genus. This little species does not present the usual inequality in the form of the lateral extremities, and it is enveloped in an unusually thick transiwrent horny epidermis, re- sembling that of Solemya. Species 12. (Mus. Cuming.) Soletellina acuminata. f>ul. testd elongato-transverm. inaquilaterali, carulescente-purpured, epidermide ni- gricanle-olivaced indutd, ad umbones erosd, latere an- tico rotundato, postico oblique Jlexuoso-acuminafo, nii- gulum obtnsum rugosum formante. The acuminated Soletellina. Shell elongately transverse, inequilateral, bluish-purple, covered with a blackish-olive epidermis, eroded at the umboes, anterior side rounded, posterior obliquely flexuously acuminated, forming an obtuse wrinkled angle. Deshayes, MS., Mus. Cuming. [lab. Philippine Islands. Of rather more rough and solid structure than its allies, with a darker epidermis, and conspicuous above all in having the posterior extremity obliquely acuminated. Species 11. (Mus. Cuming.) Soletellina Donacioides. Sol. testd oblongo-transversd, tenui, incequilaterali, Irtvigatd, late castaneo-radiald, epidermide crassd corned translucidd indutd, lateribu^ cBqualiter rotundatis, postico multo breviore. The Donax-like Soletellina. Shell oblong-transverse, thin, inequilateral, smootli, broadly chestnut-rayed, covered with a thick, transparent, homy epidermis, sides equally rounded, posterior much the shorter. Ilab. Port Adelaide, Australia. } Species 13. (Mus. Cuming.) 1 Soletellina incerta. Sol. testd oblongo-transversd, postice latiore, tenui, ineequilaterali, lavi, epidermide \ tenui corned olivaeed indutd, postice obscure biradiatd, latere antico rotundato, postico oblique truncate. I The doubtful Soletellina. Shell oblong-transverse, I broader posteriorly, thin, inequOateral, smooth, co- j vered with a thin horny epidermis, obscurely two- rayed posteriorly, anterior side rounded, posterior obliquely truncated. Deshayes, MS., Mus. Cuming. ITab. New Zealand ; Strange. Of simple form, with the posterior side only very slightly compressly truncated. Species 14. (Mus. Cuming.) Soletellina atrata. Sol. testd ovato-transversd, pos- tice latiore, tenui, concentrice striatd, atro-purpured, epidermide corned olivaeed indutd, postice biradiatd, latere aniico rotundato, postico tumidulo, rotundato- triincalo. SOLETELLINA.— Plate IJl The dark Soletellika. Shell ovately transverse, broader posteriorly, thin, concentrically striated, dark pui-ple, covered with a horny olive epidermis, two-rayed posteriorly, anterior side rounded, poste- rior rather swollen, rotundately truncated. Deshayes, MS., Mus. Cuming. Ilab. Catanauan, Island of Luzon, Philippines ; Cuming. Closely allied to the preceding species, but of a moi'c _DowOT-like form, and darker-coloured. Species 15. (Mus. Cuming.) SOLETELLINA PLANULATA. Sol. testd oblougo-iransverii jjlmio-couvexd, mbxqidlalerali, atro-purpured, epider- mide olivaceo-fmcd indutd, latere antico rotundato, postico oblique rotundato-truncato. The ri-AT Soletellina. Shell oblong-transverse, flatly convex, nearly e{[uilateral, dark purple, covered with an olive-brown epidermis, anterior side rounded, posterior obliquely rotundately truncated. Hab. Moluccas. Chiefly distinguished from the larger typical species of the genus by its less elongately transverse growth and darker colour. SoletdUna^BJV. Sowerby ddetith . '\fiiicent brooks Imp s()L^:telli na. Species l(). (Mus. Cuiiunjj;.) * SoLF.TELLlNA Japonica. Sol. li'sid orbiculari-trnnsversa, plano-convexd, iruequilaterali, lamgatd, pnrpurascente- albd, eximie radiatd, epidermide corned fn/vo-oiivaced Iranducidd indutd, latere anlico Mi rotundnto, postieo brevi, oblique subactiminato-truncalo. 'I'll K Japan Soletellina. Shell orbicularly transverse, llatly convex, inequilateral, smooth, pur]ile-whitc, de- licately rayed, covered witii a transparent, fulvons- olive, horny epidermis, anterior side broadly rounded, posterior short, obliquely subacuminat(^ly truncated. Deshayes, MS., Mus. Cuming. Ilab. Japan; l>r. Siebold. Delicately ])urple-rayed upon a white f^ronnd, beneath a cliaractcristie, transparent, shining, fulvous-olive epi- dermis. Species 17. (Mus. Cuming.) Soletellina beversa. Sol. tesld oblique orbicidari, tenui, peUucidd, valde ituequilalerali, Imvigatd, caru- lescenie-albd, epidermide tenui corned translucidd Jla- vescente-corned indutd. Mere antico brevimitw, poslico oblique Me expanso, mnbobm rotundalis. The reversed Soletellina. Shell obliquely orbicular, thin, transparent, very inequilateral, smooth, bluish- white, covered with a thin, transparent, yellowish- horny epidermis, anterior side very short, posterior obliquely broadly expanded, l)oth rounded. Hnb. Malacca ; Dr. Traill. In this and the following species, l)oth very thin and horny, the sides arc, as it were, reversed, the posterior being much more broadly and more largely developed ihan the anterior. Species 18. (Mus. Cuming.) Soletellina oiibiculata. Sol. ledd oblique orbiculari, lenui, semipellucidd, valde intequilaterali, lavigatd, ni- lente, cterulescenle, epidermide corned translucidd Jla- vescente-corned indutd, Mere antico brevissimo, por- tico lata mboblique expanso, ambubun rotimdalis. TuE orbicular Soletellina. Shell obliquely orbicu- lar, thin, semitransparent, very incciuilatcral, smooth, shining, bluish-white, covered with a yellowish-olive, transparent, horny epidermis, anterior side very short, posterior side broad, rather obliquely e,xpanded, both rounded. Solen orbicuMus, Wood, Index Testaceologicus, Supp. p. 3. pi. i. f. 4. Hab. Sumatra; Captain Adolphe Martin. This species scarcely differs from the preceding, yet it is scarcely so obbquely expanded, and the diU'erencc, though slight, is characteristic. Specie? Ul. (Mus. Cinning.) Soletellina Ndttallii. So/. Icstd oblique orrdd, nub- (/■qnilatei-ali, inaqnivalvi, valvd dextrd pluniore, l.(evi- (jal.d, ad mnrginem poiiticnm denni' Hriatd, albidd, pw- purascmte exmu- lim-lii. er towards the margins, anterior side serai-ellip- tic, obtuse, equally convex above and below, poste- rior side straight at the upper part, a little slanting, with a bipartite concave augle. Deshayes, Pro. Zool. Soc. ISS*, p. 322. Hab. Moluccas. Eather elongate in form, with the ])Osterior end pro- duced into a bipartito couKively angled beak, with the stria; raised upon it in concentric wrinkles. Species 16. (Mus. Cuming.) PsASlMOBiA pr.estans. Psam. testa elomjato-trauHversd, conveximcnld, tvmiL, iueegiiilaterali, intense molaceo, albo niiidejloccald, transmrsim et oblique minute regu- lariter striata, ad latm poslicum striis subito inter- ruptis, latere antico breviore, superne convexiusculo, obtmo, latere postico latiore, aiujulo ohtuso obliquo. The surpassing Psammobia. Shell elongately trans- verse, rather convex, thin, inequilateral, deep violet, neatly flaked with white, transversely and obliquely minutely regularly striated, stria; suddenly inter- rupted on the posterior side, anterior side shorter, rather convex and obtuse at the upper part, posterior side broader, with an obtuse oblique angle. Deshayes, Pro. Zool. Soc. 1854, p. 322. Hab. Moluccas. Very characteristic in its style of colouring, which varies from rose-purple to very deep violet, prettily flaked witli white. Species 17. (Mus. Cuming.) Psammobia vespektina. Psam. testa ovato-transversd, tKmidiusculd, subaqdlaterali, Imvi, nitente, tranwer- sim striato-sulcatd, striis ad latus posticum conferti- oribus, rufescente et caruleo-purpured, albo floceatd et iriradiatd, extremitatibus rotundatis. The evening Psammobia. Shell ovately transverse, slightly swollen, nearly equilateral, smooth, shining, transversely striately grooved, striae on the posterior side closer, reddish and blue-purple, flaked and three- rayed with white, extremities rounded. Solen vespertinus, Gmelin, Syst. Nat. p. 3228. Lux vespertina, Chemnitz. Tellina depressa, Pennant. Tellina variabilis, Pulteney. Tellina alhida, Dillwyn. Psammobia vespertina, Lamarck. Psammobia Jlorida, Lamarck. Samjuiuolaria vespertina, Fleming. Psammocola vesper tiualis, De Blaiuville. Hab. Mediterranean. This well-known species is mostly flaked and ihr..- rayed with white upon a deep purple-blue rust-tingti! ground. Species 18. (Mus. Cuming.) Psammobia solida. Psam. testa late ovato-tramversu, gibbosd, inaquilaterali, lateribus ad umbones decUvibus, extremitatibus rotundatis; sordide alba, concmtrid- rugoso-striatd, prope margines epidermide vestitd. The solid Psammobia. Shell broadly ovately trans- verse, gibbous, inequilateral, sides sloping from the umboes, rounded at the extremities; dead-white, concentrically roughly striated, covered near the mar- gins with an epidermis. Geay, MS., Brit. Mus. Hab. Chili; Cuming. A roughly-striated gibbous dead-white .l/yw-like species, covered towards the margins with a brown fibrous epi- dermis. (Species 19. !Mus. Cuming.) Psammobia ametiiystls. Psam. tesld elongato-trans- versd, compressd, suljtequUaterali, dense tenuistriatd. December, 18f>5. PSAMMOBIA.— Plate III. strii3 ad latus posticum sulobliquis, elevatis ; Uvido- purpurascente, purptireo-roseo pallide radiaid, latere antico rotundato, posiico oblique angulato et trmicaio. The amethyst Psammobia. Shell elongately transverse, compressed, nearly equilateral, densely finely striated, striae on the posterior side rather oblique and raised ; livid-purple, faintly rayed with pnrple rose, interior side rounded, posterior obliquely angled and trun- cated. Ha/j. Ceylon ; E. L. Layard. Of a delicate livid-purple colour, rayed at rather distant intervals with faint purple-rose. Species 20. (Mus. Cuming.) Psammobia tripartita. Paam. testa elongato-transverad, elUpsoided, compressd, aquilaterali, tnaculis minimis albis canjlueidibus irregulariter sparsis notatd sen ob- scure albo radiatd, tratisversim striata, striis antice latis et planis, in medio Upartitis et duplo numerosi- oribics, in latere subito lamellosis, imbricatis, acutis, latere antico semi-elliptico, obtuse, latere postico paulo latiore, obliqui truncato, angulo acutiuseulo in/erne terminato, angulo obtuso obsoleto ab umhone decur- rente. The tripartite Psammobia. Shell elongately trans- verse, ellipsoid, compressed, equilateral, violet, marked with irregularly sprinkled confluent minute white spots or obscurely white-rayed, transversely striated, striae anteriorly broad and flat, bipartite and twice as numerous in the middle, on the posterior side suddenly lamellose, imbricated, and sharp, anterior side semi-elliptic, obtuse, posterior side rather broader, obliquely truncated, terminated at the lower part by a rather sharp angle, an obsolete obtuse angle run- ning from the umbo. Deshayes, Pro. Zool. Soc. 1854, p. 3!)1. Hab. San Nicolas, Island of Zebu, Philippines ; Cuming. This interesting species may be readily recognized, by its surface being curiously separated into three distinct patterns of sculpture. Species 21. (Mus. Cuming.) Psammobia nitosa. Psam. testa ovaio-tratisversa, soli- duld, compressiusculd, utroque latere hiante, inarqiii- laterali, tratisversim snbstriatd, roseo-purpurascente, macitlis sparsis niveis irroratd, latere antico breviore, late rotundato, postico latiore, supei-ne recto, non de- clivi, liorizo7itali, late obtuse truncato. The snowy Psammobia. Shell ovately transverse, rather solid, somewhat compressed, gaping on both sides, inequilateral, transversely faintly striated ; rose-pur- ple, bedewed with scattered snowy spots, anterior side shorter, broadly rounded, posterior side broader, straight at the upper part, not sloping, horizontal, broadly obtusely truncated. Deshayes, Pro. Zool. Soc. 1854, p. 317. Hah. Dumaguete, Island of Negros, Philippines ; Cuming. Closely allied to P. occidens, but uniformly distinguished by the various characters detailed in the foregoing de- scription. w Jimmifwhi/i, M.IV. 0- Si.ivraiiy (H 9Llith. Vincent Brooks Itp PSAMMOBIA. Plate IV. Species 22. (Mus. Cuming.) Fs.\MMOBiA AFFiNis. PmM. testd ovato-transversd, (equi- lalerali, transvenhn rude striata, striis in medio suli- ubaoletis, antice distinciis, postici suhplicatis ; lutes- cenie-albd, cartieo-roseo verms margines promisctie ra- diatd, lateribm rotundatis, postico parum truncato. The allied Psammobia. Shell ovately transverse, equi- lateral, transversely rudely striated, strite almost ob- solete iu the middle, distinct anteriorly, slightly pli- cated posteriorly ; ycUovvish-white, promiscuously rayed towards the margins with flesh-rose, sides rounded, the posterior but little truncated. Hah. New Zealand and the Philippine Islands. A species intermediate in its character between v^. ^ro/a and wspertina. Species 23. (Mus. Cuming.) Ps.^MMOBlA PULCHELLA. Psam. testd subaiiffuste trans- versa, compressd, uiaquilaterali, oblique nitide elevato- striatd, striis ad mari/iuem arece posticm abrnpte ter- minatis ; c/eruleo-purpured, ferrtigineo tinctd, albo nmltiradiaid, latere aiitico rotundato, postico declivi- Iruncaio, ared snbl^vigatd, ab mnhone superfcialiter impresso. TnK PRETTY Psammobia. Shell rather narrowly trans- ver.se, compressed, inequilateral, obliquely neatly ele- vately striated, striEB abruptly terminated at the edge of tlie posterior area ; blue-purple, tinged with rust, many-rayed with white, anterior side rounded, pos- terior slopingly truncated, impressed superficially with a nearly smooth area from the umbo. Lamaiick, Anini. sans vert. vol. vi. p. 177. Ilab. Bay of ilanila, Philippines ; Cuming. The sculpture of this species consists of numerous ob- lique raised strisr, which terminate suddenly along the edge of a superficially impressed area sloping posteriorly from tlie uinl)o. Species 24. (Mus. Cuming.) jAM.MoniA coMPTA. Psani. testd elongato-transversd , /equilaterali, compressd, temiiculd, leevigatd et pro- miseue sulcato-striatd, striis posticl plicatis; livido- c/enilescente, purpureo-viohiceo radiatd, latere antico December, rofmidato, postico decUvi-trnncato, aream concaram ab iimbone furmante. The neat Psammobia. Shell elongately transverse, equilateral, compressed, rather thin, smooth or pro- miscuously groove-striated, stria? posteriorly plicated . livid-blue, rayed with purple violet, anterior side roundcfl, posterior slopingly truncated, forming a concave area from the umbo. Deshayes, Pro. Zool. Soc. 1854, p. 321. Hob. Catbalonga, Island of Samar, Philippines ; Cuming. The striae are almost obsolete in the centre of the valves, the surface of that part being smooth, crossed by inter- rupted linear grooves. Species 25. (Mus. Cuming.) P.sammobia intermedia. I'sam. testd ovato-trumrersd, coiivexiusculd, solidd, esquilaterali, albidd, roseo teniii- radiatd, epiderinide luted partiin indutd, transversim rugosd, rugis rudibus, solidiusculis, promisciie midu- latis, postice crassioribits, valde irregularibns, latere atitico rotundato, postico subattenuato, compresso, de- clivi-trnncato. The intermediate Psammobia. Siiell ovately trans- verse, rather convex, solid, cciuilateral, whitish, finely rayed with rose, partially covered with a yellow epi- dermis, transversely wrinkled, wrinkles rude, rather solid, promiscuously waved, posteriorly thicker and very irregular, anterior side rounded, posterior rather attenuated and compressed, slopingly truncated. Deshayes, Pro. Zool. Soc. 1854, p. 319. Ilab. Faro, coast of Portugal ; M'.\ncirew. A fine species, chiefly distinguished by the boldness and irregular waved development of its wrinkled sculpture. Species 26. (Pig. a, b, Mus. Cuming.) Psammobia ornata. Psam. testd otato-transtersd, sub- veiitricosd, subaquilalerali, lutescente-albd, purpureo- caslaiieo et rufo-violaceo promi-scue maculatd et oljscuri radiatd, oblique striato-rugosd, rugis postice irregu- lariter undato-pUcatis, latere antico rotundato, postico truncato-rotundato, ab umbone convexo-impresso. The ornate Psammobia. Shell ovately transverse, subventricose, nearly equilateral, yellowish -white, 18.56. PSAMMOBIA.— Plate IV, promiscuously blotcbed and obscurely rayed with purple-cbestnut and reddish-violet, obliquely striately wrinkled, wrinkles posteriorly irregularly wave-pli- cated, anterior side rounded, posterior truncately rounded, convexly impressed from the umbo. Deshayes, Pro. Zool. Soc. 1854, p. 323. Hah. Island of Ticao, Philippines ; Cuming. The most obvious characteristic of this species is its peculiarity of painting, the surface being more or less ornamented with promiscuous blotches of purple-chestnut and reddish-violet inclining towards the margins in rays. Species 27. (Mus. Cuming.) PsASiMOBiA MARMOUEA. Psum. testd ovato-transvend, compresmisculd, soliduld, subwquilateraU, obligue stri- ato-rugosd, ritgis postice Jlexitoso-plicatis, lufescente- albd, ad itmbones hdescmite-violaced, pitrpureo-cas- taneo internipte radiatd, latere antico rotundato, pos- tico compresse truncato, ab umbcme obtuse mperfieia- liter angulato. The marbled Psammobia. Shell ovately transverse, rather compressed, rather solid, nearly equilateral, transversely obliquely striately wrinkled, wrinkles flexuously plicated, yellowish-white, yellowish-violet at the umboes, interruptedly rayed with purple- chestnut, anterior side rounded, posterior compressly truncated, obtusely superficially angled from the umbo. Deshayes, Pro. Zool. Soc. 1854, p. 824. Hab. Moluccas and New Holland. The painting of this species resembles that of the last in colour, but it is differently disposed, whilst the sculp- tured wrinkles are more obliquely pronounced, though nearly obsolete in the middle. l^sanurwhicL. PL V. ; >-. / h ^-^ Sowerby Ad eLlith IfinceTLl brooks PSAMMOBIA Plate V. Species 28. (Fig. 28 and 30, Mus. Cuming.) PsAMMOBiA BiCARiNATA. I'sttm. testd elotigato-tratis- versd, angustd, depressd, soUduld, cequilaterali, atro- violaccu, obsolete saturniiore radiatd, ti'ansversim sul- cata, S'ulcis versus manfmem ohliqiie pUeaiis, latere antico Totundato, postico oUl/jue trimca/u et rostraio, ah umbone bicarinato. The two-keeled Psammobia. Shell elongately trans- verse, narrow, depressed, rather solid, equilateral, dark-violet, obsoletely darker rayed, transversely grooved, grooves obliquely plicated towards the mar- gin, anterior side rounded, posterior obliquely trun- cated and beaked, two-keeled from the umbo. DESH.4.YES, Pro. Zool. Soc. 185-t, p. 322. Ilab. Zanzibar; T. Thome. A dark purple shell, sometimes white, stained with rose, as in Fig. 30, sculptured with obliquely sloping folds near the margin, the posterior extremity being beaked, with two-keeled angles running down from the umbo. Species 29. (Mus. Cuming.) PsAMSlOBiA ZONALIS. Psavi. ttstd miyuste tr, compressd, siiba-qnilaterali, tennissime striata, uitente, albidd, zonis transversis livido-roseis, latere antico ro- tundato, postico ah wnhone subangulato, trtmcato. The zoned Psammobia. Shell narrowly transverse, compressed, nearly equilateral, very finely striated, shining, whitish, with transverse livid-rose zones, anterior side rounded, posterior slightly angled from the umbo, and truncated. I'samriiolaa zonalis, Lamarck, Anim. sans vert. vol. vi. p. 183. Hah. Tasmania; E. C. Gunn. A smooth compressed species, very finely striated to- wards the margin and extremities, painted with delicate livid-rose zones. Species 31. (Mus. Cuming.) Psammobia Tellin^formis. Psam. testd anguste trans- versa, compressd, suhmiidlaterali, dense tenuistriatd, nitente, striis ad latus posticum plicato-elevatis ; al- bidd, livido-carneo pallide radiatd, latere antico rotun- dato, postico rotimdato-truncato, ah umbone siiperf- cialiter angulato. The Tellina-shaped Psammobia. Shell narrowly transverse, compressed, nearly equilateral, closely finely striated, shining, strife plicately raised on the posterior side ; whitish, faintly rayed with livid-flesh, anterior side rounded, posterior rotundately trun- cated, superficially angled from the umbo. Deshayes, MS., Mus. Cuming. Hab. ? Unusually compressed, with the posterior angular con- cavity only superficially developed, the surface being faintly rayed with a thin livid-tlesh tint. Species 33. (Mus. Cuming.) Psammobia castrensis. Psam. testd ovato-trarisversd, tenui, pellucidd, subaguilaterali, nitente, vix striata, purpurascente-albd, maculis hieroglyphicis purpuras- centibus picta, epiderinide tenui corned prope margines indutd, lateribtis rotimdatis, postico tumidulo. The camp-marked Psammobia. Shell ovately transverse, thin, pellucid, nearly equilateral, shining, scarcely striated, purplish-white, painted with obscure hiero- glyphic purplish spots, covered with a thin horny epidermis near the margins, sides rounded, posterior slightly swollen. Hanley, Species of Shells, p. 59. Solen castrensis, Chemnitz. Hab. Sorsogon, Island of Luzon, Philippines ; Cuming. A semipellucid smooth shell, covered towards the mar- gin with a thin horny epidermis, not unlike a Soleit in general aspect. Species 33. (Mus. Cuming.) Psammobia Ferroensis. Psam. testd anguste transversa, subcompressd, snheeguilaterali, striata, striis ad latus posticutn subplicatis, ad angnlum striis radiantihus decussatis ; albidd, roseo radiatd, ad margines epider- mide vestitd, latere antico rotundato, postico attemiato- truncalo ab umbonem angulato. Tub Ferroe Psammobia. Shell narrowly transverse, rather compressed, nearly equilateral, striated, stria> subplicated on the posterior side, decussated on the angle with radiating striffi ; whitish, rayed with pink, clothed with an epidermis at the margins, anterior December, 1856. PSAMMOBIA.— Plate V. side rounded, posterior attenuately truncated, angled from tlie umbo. Tdliiia Ferroensis, Chemnitz, Conch. Cab. vol. vi. p. 99. pi. 10. f. 91. Tellina incarnata. Pennant. Tdlina radiata. Da Costa. Tellina trifasciata, Donovan. Tellina truncata, Spengler. Psamnwbia Ferroetms, Lamarck. Ilab. Ferroe and other Northern Isles, British Isles, and throughout the European Seas. There is not much variation in this widely distributed species, the rose rays more or less predominating on a stone-white ground. Fig. 34. (Mus. De Burgh.) Ps.AMMOBiA KUBICUNDA. Psam. testd ovato-transversd, gibbosd, utroqiie latere panluluni hiante, sub(eqtiilate- rali, oblique striata, striis postice plicatis et ahruple interruptis, deinds superne contitmis, vivide sanguineo- rosed, albo jloccatd, lateribm rotundatis superficialiter ab umbone impresso. The bright red Psammobia. Shell ovately transverse, gibbous, a little gaping at both ends, nearly equi- lateral, obliquely striated, striae posteriorly plicated and abruptly interrupted, then continuous towards the upper part, bright scarlet-rose flaked with white, sides rounded, posterior superficially impressed from the umbo. Deshayes, Pro. Zool. Soc. 1854, p. 324. Ildb. Island of Ticao, Philippines ; Cuming. This beautifuDy painted species is remarkable for the brightness and delicacy of its colour, the entire surface being a deej) transparent blood-rose, flaked here and there with white. The specimen here figured is from the choice collection of Mrs. Do Burgh. Mr. Cuming also possesses a fine and equally brilliantly painted specimen. Species 35. (Fig. a, b, Mus. Cuming.) PsAMMOBtA ELEGANS. Psam. testd elongato-transversd, angustd, compressd, eequilalerali, tramversim rugoHO- plicatd, plicis subundiilatis, latere antico rotnndato, poslico atlemiato-rostrato, et ab umbone bicarinato, fuscescetde-albd, fmco-purpureo promisaie radiatd. The elegant Psammobia. Shell elongately transverse, narrow, compressed, equilateral, transversely nigosely plicated, slightly waved, anterior side rounded, pos- terior attenuately beaked, and two-keeled from the umbo, brownish -white, promiscuously rayed with brown-purple. Deshayes, Pro. Zool. Soc. 1854, p. 322. Hab. Philippine Islands. The posterior side of this species is developed in a manner very similar to that of the P. bicarinata. Species 36. (Mus. Cuming.) Psammobia amiena. Psam. testd elongato-transveisd, depressd, tetmi, semipellucidd, aquilaierali, dense tram- versim striata, striis antice lafwribus, in medio furca- tis, striis posticis in valvd dextrd sidjobsoletis, in valvd sinistra continuis ; alba, rufo-violascente palUdissime maculatd et radiatd, nitente, latere antico rotundato, poslico oblique truncato, ab umbone superficialiter an- gulato-impressd. The delicate Psammobia. Shell elongately transverse, depressed, thin, semipellucid, equilateral, densely transversely striated, strije broader anteriorly, forked in the middle, posterior striae nearly obsolete in the right valve, in the left valve continuous, white, faintly rayed and spotted with reddish-violet, shining, an- terior side rounded, posterior obliquely truncated, faintly angularly impressed from the umbo. Deshayes, Pro. Zool. Soc. 1854, p. 323. Hab. ? An extremely delicate shining species, with a charac- teristic dift'erence, as above noted, in the sculpture of the two valves. JPsnmnu>bia,Fl.Y[. m c tiwaibf MuiCh ^fccent iiroab Imp, PSAMMOBIA. Plate VI. Species 37. (Fig. a, b, Miis. Cuming.) PsAJiMOBiA TENUIS. Psam. testa elougato-transversd, con- veximculd, termi, hjalina, huequilaterali, aliidd, in- terdum roseo radiatd, oblique tenimsinie striata, striis ad laitts posticum abrupte terminafis, latere antico sub- attenuato, postico breviore, late truncato. The thin Psammobia. Shell elongately transverse, rather convex, thin, hyaline, inequilateral, whitish, sometimes rayed with rose, obliquely very finely stri- ated, striae abruptly terminated on the posterior side, anterior side slightly attenuated, posterior shorter, broadly truncated. Deshayes, Pro. Zool. Soc. 1854, p. 330. Hab. Philippine Islands ; Cuming. The posterior side of this delicate hyaline species is co'iipressly truncated and more angularly sloped in some specimens than in others. Species 38. (Mus. Cuming.) Psammobia costulata. Psam. testa elongato-transversd, tenuicttld, inaquilaterali, concentrice sulcato-striatd, albidd, intense roseo pauciradiatd, latere antico atte- nuato-rotundato, postico breviore, rotundato, radiatim tenui-costato. The finely ribbed Psammobia. Shell elongately trans- verse, rather thin, inequilateral, concentrically groove- striated, whitish, marked with a few deep rose rays, anterior side attenuately rounded, posterior shorter, rounded, radiately finely ribbed. TuRTON, Dithyra Brit. p. 87. pi. 6. f. 8. Psammobia discors, Philippi. Hab. Porto Santo, Madeiras, Sicily, British Isles. A small elongately transverse species, sculptured in a characteristic manner on the posterior side with fine ra- diating ribs. Species 30. (Mus. Cuming.) Psammobia abrupta. Psam. testa elongato-tramversd, tenui, pellucidd, aquilaterali, compressd, 'albidd, transversim costafd, cosfis obtusis, stibobliquis, postice abrupte interruptis, latere postico compresso, costis latis radiantibus sculpto, supernc recto, ad eitremita- lem rotundato-trmicato. The abrupt Psammobia. Shell elongately transverse, thin, pellucid, equilateral, compressed, whitish, transversely ribbed, ribs obtuse, rather oblique, poste- riorly abruptly interrupted, posterior side compressed, sculptured with broad radiating ribs, straight at the upper part, rotundately truncated at the extremity. Deshayes, Pro. Zool. Soc. 1854, p. 324. Hab. Philippine Islands ; Cuming. The ribbed sculpture of this delicate little transparent shell is very conspicuous. Species 40. (Mus. Cuming.) Psammobia eburnea. Psam. testa oblongo-lransversd, valde compressd, lavigatd, nitente, alba, inceqmlate- rali, latere antico late rotundato, postico breviuscalo, ad marginem superam anguste angulato-impresso, ad extremitatem rotundato. The ivory Psammobia. Shell oblong-transverse, very compressed, smooth, shining, white, inequilateral, anterior side broadly rounded, posterior rather short, narrowly angularly impressed along the upper mar- gin, rounded at the extremity. Hab. Malacca. A thin compressed smootii ivory-like shell, with a simple narrowly impressed slope along the upper posterior edge. Species 41. (Mus. Cuming.) Psammobia candidula. Psam. testa oblongo-transxersd, imniduld, crassitiseuld, subaquilaterali, lavigatd, irre- gulariter incremento mterruptd,fiavescente-albd, late- ribus rottmdatis, ab umhonem declivibus, latere postico paululum breviore, obtuse angulato. The white Psammobia. Shell oblong-transverse, rather swollen, somewhat thick, nearly equilateral, smooth, irregularly interrupted with lines of growth, yellow- ish-white, sides rounded, slanting from the umbo, posterior side rather the shorter, obtusely angled. Deshayes, Pro. Zool. Soc. 1854, p. 319. Hab. Philippine Islands ; Cuming. Of a solid dead-white aspect, smooth throughout, with only the faintest indication of an angle on the posterior side. PSAMMOBIA.— Plate VI. Species 42. (Mus. Cuming.) PsAMMOBiA Malaccana. Psam. testa ovato-transversd, subcompressd, tenui, aquilaterali, nilente-albd, nilidi obliqm sulcato-striatd, striis postice abrupte interrup- t.k, latere anlico rotundaio, postico latiore, subangu- lato-truncato et concentrice striata. Thf. Malacca Psammobia, Shell ovately transverse, somewhat eompiessed, thin, equilateral, shining white, neatly obliquely groove-striated, striae abruptly interrupted on the posterior side, anterior side rounded, posterior broader, slightly angularly trun- cated and concentrically striated. Huh. Malacca. A delicate shining white shell, neatly sculptured with ()bli((ue gi-ooved striae, which suddenly tenniuate on the posterior side. Species 43. (Mus. Cuming.) I'sAMMOBiA Menkeana. Psam. testa elongato-transversd, angmtd, cBquilalerali, liris plicatis subirregularibus concentrice sculptd, Jlavescente-albd, pallidissime vio- laceo radiatd, latere antico late rotundaio, postico oh- litse truncato obtmissime angulato. Menke's Psammobia. Shell elougately transverse, nar- row, equilateral, concentrically sculptured with irre- gular plicated ridges, yellowish-white, very faintly violet-rayed, interior side broadly rounded, posterior obtusely truncated, very obtusely angled. Ilttb. East coast of Australia. A narrow species, sculptured concentrically with some- what irregular plicated ridges. subaquilaterali, tenui, fragili, transversim inaqualiter plicato-striatd, striis posticc anguste elevatis, Jlaves- cente-albd, lateribus rotundatis, postico obscure obtuse angulato. The naurow Psammobia. Shell elongately transverse, nearly equilateral, thin, fragile, transversely some- what plicately striated, strise posteriorly nan'owly raised, yellowish-white, sides rounded, posterior ob- scurely obtusely angled. Deshayes, Pro. Zool. Soc. 1854, p. 320. Ilab. Senegal. The striae in this as in the preceding species incline to be obliquely plicated, but are developed on the posterior side in narrow ridges. Species 44. (Mus. Cuming.) Ps.\MMOBiA AKGUSTA. Psaiii. tesfd elongato-transversd. Species 45. (Mus. Cuming.) Psammobia Layardi. Psam. testa elongato-tra7isversd, depressd, aquilaterali, oblique minute sulcato-striatd, striis ad latus posticum ahrupte terminatis, latere pos- tico striis concentricis et radiantibiis fortiter decussate, sublate obtuse angulato, rotundato-truncato ; flaves- cente, albo et violaceo-fusco marmoratd. Layakd's Psammobia. Shell elongately transverse, de- pressed, equilateral, obliquely minutely groove-stri- ated, strise abruptly terminated on the posterior side, posterior side strongly decussated with concentric and radiating striae, rather broadly obtusely angled, rotundately truncated ; yellowish, mottled with white and violet-brown. Deshayes, Pro. Zool. Soc. 1854, p. 323. Hab. Philippine Islands ; Cuming. Elegantly sculptured and mottled throughout with violet-brown and white. I'sammehia, PI. TU. Sowsrbv dd.g. ith "WxKjarit Brooks Imp P S A M M 0 B I A Species 46. (Mus. Cuming.) I'sAM.MQBiA PDLCHEREIJIA. Psam. testd elonguto-trmu- versa, compressd, ienui, mbaquilaterali, violaceo- rosed, obsolete albo-radicdd, intns ro-ieo-purpurascente, oblique tramverdm costatd, costis siniplicibns, de- prems, superne acutiusculis, ad latus podicum subito interriip(is, latere postieo panic Mante, costiilis radi- antibus scabrosis, ad mar(jmem denticidatls. The very beadtiful Psammobia. Shell elongately transverse, compressed, thin, nearly equilateral, vio- let-rose, obsoletely white-rayed, iuterior rose-purple, obliquely transversely ribbed, ribs simple, depressed, rather sharp at the upper part, suddenly interrupted at the posterior side, posterior side a little gaping, with small scabrous radiating ribs, denticulated at the edge. Deshayes, Pro. Zool. Soc. 1854, p. 335. This beautiful little species is remarkable for its strongly marked and strongly contrasted sculpture, the posterior radiating ribs being obtusely prickly scaled. Species 47. (Mus. Cuming.) Psammobia palmula. Psam. testd oblongo-transversd, arcuatd, tenui, fragili, inaqvilaterali, oblique costu- latd, costulis antice subtilibus, snbuiidvlatis, postice continuis et radianfibus, lutescente-albd, maculis per- paucis pallide rufesceiitibus aspersd, latere antico at- tenuato-rotimdalo, postieo oblique trnncato el paulu- lum liianle. The little oar Psammobia. Shell oblong-transverse, arched, thin, fragile, ineijuilateral, obliquely finely ribbed, ribs auteriorly fine, slightly waved, posteriorly continuous and radiating, yellowish-white, sprinkled with a few faint red spots, anterior side attenuately rounded, posterior obliquely truncated and a little gaping. Deshayes, Pro. Zool. Soc. 1854, p. 325. Hab. Sydney, New Holland. The obliquely sloping ribs in this species are not inter- rupted on the posterior side, but become gradually open and raved. Species 48. (Mus. Cuming.) Psammobia uispar. Psam. testd ovato-transversd, tenui, wcequilaierali, lutescente-albd, roseo-marmoratd, ob- lique lirato-stiiatd, striis ad latus posticum interrup- lis, latere antico latiusculo, atfenmto-rotundato, pos- tieo brevi, subrostrato, paulo Mante, conspicue radia- tim costato. The unequal Psammobia. Siiell ovately transverse, thin, inequilateral, yellowish-white, rose-mottled, obliquely ridge-striated, strife interrupted at the pos- terior side, anterior side rather broad, attenuately rounded, posterior short, somewhat beaked, a little gaping, conspicuously radiately ribbed. Deshayes, Pro. Zool. Soc. 1854, p. 325. Ilab. Philippine Islands ; Cuming. Chiefly distinguished by the posterior side being some- what beaked and conspicuously cross-ribbed, in contrast with the obliquely sloping stria.'. Species 49. (Mus. Cuming.) Psammobia denticulata. Psam. testd elongato-trans- versd, arcuatd, tenui, subaquilaterali, albidd, ad um- bones roseo tinctd, oblique undato-liratd, postice ra- diatim costatd, costis scabrosis, latere postieo oblique truiicato, liianle, ad marginerii denticulato. The toothed Psammobia. Shell elongately transverse, arched, thin, nearly equilateral, whitish, tinged with rose at the umboes, obliquely wave-ridged, posteriorly radiately ribbed, ribs scabrous, posterior side ob- liquely truncated, gaping, denticulated at the edge. Adams and Reeve, Moll. Voy. Samarang, p. 80. pi. 24. f. 2. ffab. China Sea. The ribs on tlie posterior side are prickly-scaled, radia- ting openly, so as to show the interstices deeply grooved. 50. (Fig. a, b, Mus. Cuming.) Psammobia squamosa. Psam. testd oblongo-transversd, arcuatd, tenui, subaquilaterali, oblique undato-liratd, postice radialim costatd, costis prominentibus, squamo- sis, subdistantibus, cccrulescente-violaced, interdum al- bidd, roseo marmoratd, latere antico rotundato, postieo oblique truncato et kiante. January, 1857 P5AMM0BIA.— Plate VII. The scaled Psammobia. Shell oblong-transverse, arched, thin, nearly equilateral, obliquely wave- ridged, posteriorly radiately ribbed, ribs prominent, scaled, rather distant, blue-violet, sometimes whit- ish, mottled with rose, anterior side rounded, poste- rior obliquely truncated and gaping. Lamarck, Anim. sans vert. vol. vi. p. 176. Hab. Island of Masbate, Philippines ; Cuming. A delicate and beautifully sculptured species, chiefly distinguished by the prominent openly spread develop- ment of the posterior ribs and gaping extremity. Species 51. (Mus. Cuming.) Psammobia bugulosa. Psam. testa elongato4ransverad, subarctiatd, tenui, inaquilaterali, oblique rugulono- Uratd, postice radiaiim cosialo, costk scabrosk, lules- eente-albd, latere antico attenualo-rotundato, postico ailenualo-rodraio et obliqui Inmcalo. The -wrinkled Psammobia. Shell elongately trans- verse, slightly arclied, thin, inequilateral, obliquely wrinkle -ridged, posteriorly radiately ribbed, ribs scabrous, yellowish-white, anterior side attenuately rounded, posterior attenuately beaked and obliquely truncated. Adams and Eeeve, Moll. Voy. Samarang, p. 81. pi. 24. f. 4. Hab. China Sea. The posterior side of this species is more attenuately beaked than in other examples of the genus. rupted at the posterior side, posterior side rather depressed, scarcely truncated, bipartite, divaricately wrinkle-ribbed. Deshayes, Pro. Zool. Soc. 18.54, p. 325. Hab. Philippine Islands ; Cuming. The posterior side of this species is less distinguished in form from the anterior than usual, and both sides gape at the extremity. (Species 52. Mus. Cuming.) Psammobia pennata. Psam. testa ovato-tra/tsversd, in- aquilaterali, utrinqne hiante, albo-grised, albo et ru- bescenie irregulariter minute maculatd, oblique tenuis- sime striatd, striis ad latm posticum abrupte interrup- tis, latere postico depressinsculo, vix truncato, bipar- tito, divaricatim corrugato-coslato. The winged Psammobia. Shell ovately transverse, in- equilateral, gaping at each side, whitish-grey, irre- gularly minutely spotted with white and pale red, obliquely very finely striated, stria; abruptly inter- species 53. (Mus. Cuming.) Psammobia petalika. Psam. lesid oblongo-trailsversd, tenuissimd, pelliicidd, valde inaquilaterali pallide violascente, violaeeo quinqueradiatd, nitente, latere antico elongato, postico brevi, ambobus rotundatis. The little petal Psammobia. Shell oblong-trans- verse, very thin, transparent, very inequilateral, pale- violet, five-rayed with darker violet, shining, anterior side elongated, posterior side short, both rounded. Deshayes, Pro. Zool. Soc. 1854, p. 320. Hab. China Sea. An extremely delicate, transparent, violet-rayed shell, without any indication of the peculiar sloping sculpture which is chiefly characteristic of this genus. Species 54. (Mus. Cuming.) Psammobia suffusa. Psam. testd oblongo-transversd, tenui, subcompressd, subaquilaterali, ubliqiie lirato- striatd, striis ad latus posticum subitu interruptis, purpurascente-violaced, albo tenuiradiatd, latere antico rotwidato, postico latiore, lavigato, mbangulato-lrun- cato. The blushing Psammobia. Shell oblong-transverse, thin, rather compressed, nearly equilateral, obliquely ridge-striated, stria; suddenly interrupted on the pos- terior side, purple-violet, finely rayed with white, anterior side rounded, posterior broader, smooth, somewhat angularly truncated. Hab. Malacca. A thin, purple-violet shell, delicately rayed with white, conspicuously sculptured with obliquely sloping ridges. 1 T.uurtjrwMa.J^l. Wl. ocwBrbv 1 'Vinoen.t Brooks Imi PSAMMOBIA. Plate VIII. Species 55. (Mus. Hanley.) PsAMMOBiA CASTA. Piam. tedd obJongo-ovatd, plano- convexd, pellueido-albd, pallidi rosacea, postice jkxn- oso-angulatd, sulcis linearibui femiissimis oblique sciilp- td, ad angulum postiaim interruptis. The chaste Psammobia. Shell oblong-ovate, flatly con- vex, transparent white, faintly rose-tinted, poste- riorly flexuously angled, obliquely sculptured with very fine minute linear grooves, which are inteiTupted at the posterior angle. Hnb. Guatemala. A very delicate semitransparent shell, sculptured ob- liquely with very fine linear grooves, which terminate some little distance before reaching the posterior flexu- osity. Species 56. (Mus. Cuming.) Psammobia parvula. Psam. testd oblongd, planiusculd, posiwe impresso-Jlexuosd, tenuisdme decussatini striald, nitente-albd, versus umbonein cameo tinctd. The small Psammobia. Shell oblong, rather flat, pos- teriorly impressly flexuous, finely decussately stri- ated, shining-white, flesh-tinged towards the umbo. Hab. ? Of very simple form, but distinct from any hitherto described species. )7. (Mus. Cuming.) Psammobia vaginoides. Psam. testd oblongo-ovatd, convexiuseuld, cequilaterali, lateribus rotundatis, term- issime decussatim striata^ sordide alba, versus umbonem rosaced, epidermide siramined ad marghiem indutd. The sheath-like Psammobia. Shell oblong-ovate, rather convex, equilateral, sides rounded, very finely decussately striated ; dull white, pink towards the umbo, covered at the margin with a straw-coloured epidermis. Hab. ? Equilateral, with the sides uniformly rounded, pink- tinged about the umbo, with a pale straw-coloured epi- dermis at the margin. Species 58. (Mus. Cuming.) Psammobia lineolata. Psam. testd oblongd, ad latera subacuminatd, plana, postice subattgulato-Jlexuosd ; car- neo-rosaced, lifieis opaco-albis concentrice fasciatd. The LiNEOLATED PsAMMOBiA. Shell oblong, somewhat acuminated at the sides, flat, posteriorly, slightly angularly flexuous ; flesh-pink, banded with irregular, concentric, opake white lines. Gray, MS., Mus. Brit. Hab. New Zealand. A rather flatly-compressed shell, of a deep flesh-pink colour, peculiarly marked with wliitish concentric bands and lines. Species 59. fFig. a, b, Mus. Cuming.) Psammobia convexa. Psarrt. oblongo-ovatd, plano-con- vexd, crassiuscitld, lateribus subagualibus, lavigatd, nitente ; carneo-albd, rosacea varie radiatd el minu- tissime marmoratd. The convex Psammobia. Shell oblong-ovate, flatly con- vex, rather thick, sides nearly equal, smooth, shining ; flesh-white, variously rayed with pink, and very mi- nutely mottled. jfab. ? Distinguished chiefly by its convex though flattened form. Fig. 60. (Mus. Cuming.) Psammobia cjirulescens. Psam. testd subelougalo-ob- loiigd, depressd, postice late superficialiler Jlexuosd, subangulaid, striis elevatis obliquis sculptd, striis ad angulum posticum interrvptis ; pallide violaceo-creru- lescente, umbonihis purpurea biradiatis. The bluish Psammobia. Shell somewhat elongately oblong, depressed, posteriorly broadly superficially flexuous, slightly angled, sculptured with obhque raised stria;, stria' interrupted at the posterior angle ; pale violet-blue uraboes, two-rayed with purple. Lamarck, Anim. sans vert. vol. vi. p. 170. Psammobia bipartita, Philiiipi. Hab. Ceylon. Of a delicate violet-blue, with the sculpture suddenly interrupted at the edge of the posterior angle. June, 1857. PS AMMO BI A. abrupta, Deshayes VI. affiuis, Reeve IV. amethvstus, Wood III. angusta^ Deshayes VI. amcena, Deshayes V. anomala, Deshayes I. bicarinata, Deshayes V. csrulesceus, Lamarck \lll. hrpartUa, Philipi)! VIII. candidula, Deshiiyei VI. casta, Reeve VIII. eastrensis {Solen), Chemnitz ... V. compta, Deshayes IV. convexa, Reeve VIII. c'oiTugata, Deshayes II. costulata, Turton VI. (lenticulata, Adam and Reeve . . VII. (ii.tcors, Philippi VI. dispar, Deshayes VII. eburnea, Reeve VI. elegans, Deshayes \. FeiToensis {Tellina), Chemnitz. . V. florida, Lamarck III. forida, Turton I. grata, Deshayes II. insignis, Deshayen III. intermedia, Deshayes IV. lata, Deshayes I. Layardi, Deshayes \l. Lessoni, De Blainville II. lineolata, Gray VIII. Malaccana, Reeve \'I. maxima, Deshayes . I. 4 marmorea, Deshayes IV. 27 Menkeana, Reeve VI. 4:5 modesta, Deshayes I. 3 nivosa, Deshayes III. 21 occidens {Solen), Chemnitz II. 11 oriens, Deshayes I. 1 ornata, Deshayes IV. 26 palmula, Deshayes VII. 47 parvula, Reeve VIII .56 pennata, Deshayes VII. 52 petalina, Deshayes VII. 53 prsestans, Deshayes III. 16 puella, Deshayes I. 2 pidchella, Lamarck IV. 23 pulcherrima, Deshayes VII. 46 rubicunda, Deshayes V. 34 x\xg\Ao?,9., Adams and Reeve ... . VII. 51 solida, Philippi . III. is squamosa, Lamarck VII. 50 Stangeri, Gray II. 12 suifusa, Reeve . . VII. 54 Tellinfeformis, Deshayes V. 31 Tellinella, Lamarck I. f5 tenuis, Deshayes VI. 37 togata, Deshayes II. 14 tripartita, Deshayes ... III. 20 tristis, Deshayes II. 13 vaginoides. Reeve VIII. 57 vespertina (&;«k), Gmelin .. III. 17 zonalis {Psammotaa), Laitiarek . V. 29 ERIt.VTUM. Sp. 18, P. solida, for Gray read Philippi in Abbildungen. MONOGRAPH OF THE (lENUS PSAMMOTELLA. ' Yet Nature's charms, the hills and woods, The sweeping vales and foaming floods, Are free alike to s!i."—J}urns. ]*.mmnwtfJla/. M. I. ^ .incor, sooHs imp PSAMMOTELLA. Genus PSAMMOTELLA, Bcshmjes. Testa ovato - irmt-wena, couvexiusciila, subaquilateralis, tttrinque hians, mike rotundata, podice longior, trun- cata vel suhrostrata, concentrice striata, aut lutea aid violacea, epidermide teniti decidud corned. Cardo dentibits parvis centralibus erectis in valvd sinistra, in valvd dextrd nnicd, callositate oblont/d in ambabiis. Ligamentum externum. Impressio muscularis paltii sinu oblongo peramplo. Shell ovately transverse, rather convex, nearly equilateral, gaping at botli ends, anteriorly rountled, posteriorly longer, truncated or slightly beaked, concentrically striated, yellowish or violet, with a thin horny deci- duous epidermis. Hinge with two small erect cen- iral teeth in the left valve, and one in the right, and an oblong callosity in both valves. Ligament ex- ternal. Muscular impression of the mantle distin- guished by a very large oblong sinus. This genus, of which we have here represented seven species, was recently founded by M. Deshayes during an examination of the family to which they belong, lately made by that distinguished conchologist in the collection of Sir. Cuming. While engaged in arranging the Psam- moVuB and their allies, M. Deshayes recognized a distinct generic type to which these were severally referable, none of which had hitherto been descril)ed. They are distinguished by. a pecularity of form, and they agree especially in substance and tone of colouring. With a convexly oblong nearly equilateral form, the posterior side being rather the longer, they are all densely concentrically striated, and either yellowish or deep violet, chiefly of the latter colour, with a thin deciduous epidermis. So far as the localities are known, two are from the Philippine Islands, one from Malacca, one from Ceylon, and one from the Red Sen. irregularly plicatelj striated, whitish, covered towards the margin with a fidvous epidermis, sides sloping at the upper part, anterior rather narrowly rounded, posterior obliquely attenuately truncated, lower mar- gin semicircular. Deshayes, MS., Mus. Cuming. Uab. San Nicolas, Island of Zebu, Philippines ; Cuming. Of light swollen structure, nearly equilateral, and ovately attenuated at each end. Species 2. (Mus. Cuming.) Ps.\MMOTELLA Malaccensis. Tsam. testa ovato-irans- versd, tenui, cequilaterali, convexiuseuld, lavigatd vel subtilissinie striata, pellitcido-albd, latere antico sub- anguste rotundato, postieo subeompresso, truncato-ro- tundato. TUE Malacca Psammotella. Shell ovately transverse, thin, equilateral, slightly convex, smooth or faintly striated, transparent white, anterior side rather nar- rowly rounded, posterior somewhat compressed, trun- cately rounded. Deshayes, MS., Mus. Cuming. Hab. Malacca. A small species, of simple form and semitransparent substance, the posterior side being rather i Species 1. (Mus. Cuming.) Psammotella Philippinensis. I'sam. testa ovato-trans- versd, convexiuseuld, subcequilalerali, concentrice irre- gidariter pUcato-striatd, albidd, epidennide fulvd ver- ms marginem indtttd, lateribiis superne declivibus, an- tico subanguste rotundato, postieo oblique attenuato- truncato, margine inferiore semicirculari. The Philippine Psammotella. Shell ovately trans- verse, rather convex, nearly equilateral, concentrically March, Species 3. (Mus. Cuming.) Psammotella Skinneri. Psam. testa oblongo-transversd, minute impresso-striatd, temdssimd, subvitred, lineis nigricantibus undatis, radiisque duobus, notald, epi- dermide corned olivaced nitente indutd, lateribus sub- attenuatis, postieo breviore, vix truncato. Skinneii's Psammotella. Shell oblong transverse, mi- nutely impressly striated, very thin, somewhat glassy, marked with black zigzag lines and two rays, covered with a shining olive horny epidermis, sides rather attenuated, posterior rather shorter, scarcely trun- cated. Eab. Ceylon ; Major Skinner. Of very distinct character from the rest of the genus, the shell being exceedingly thin and transparent, marked with bl-ickish zigzag lines, covered with a shining horny epidermis. PSAMMOTELLA.— Plate I. Species 4. (Mus. Cuming.) PsAMMOTELLA RupPELLIANA. Psani. testd elongato- transversd, solidiusculd, suboblique contortd, inat/ui- laterali, dense irregulariter striata, albidd, Uvido-mo- laceo fasdatd, postice pallide biradiatd, epidermide decidud prope marginem indutd, latere antico rolitn- dato, postico oblongo-truncato. Ruppell's Psammotella. Siiell elongately transverse, rather solid, rather obliquely twisted, inequilateral, densely irregularly striated, whitish, banded with livid violet, posteriorly faintly two-rayed, covered near the margin with a deciduous epidermis, anterior side rounded, posterior oblong-truncated. Hob. Red Sea; RuppeU. A rather solid species, of oblong transverse growth, rather contorted in the posterior direction. Species 5. (Mus. Cuming.) Psammotella ambigua. Fsam. testa ovato-transversd, inaquilateraU, irregulariter rugoso- striata, sordide ciolaced, lateribus supenie declivibus, antico subanguste rotuudato, postico snbcompresso producto, d' >* Hab. Guinea ; Dr. Tams. Delicate in substance, verj' closely finely striated through- out, and of a rich dark-purple colour ; collected by Dr. Tams at Guinea. Species 12. (Mus. Cuming.) Mytilus latus. Myt. testa ehngalo-ovatd, concentrice irregulariter striata, olivaced, sub epidej-mide tenui corned viridi vivide decussatim radiatd; latere postico recto, obtuse declivi, antico arcuato, vix anyulato. The broad Mytilus. Shell elongately ovate, concen- trically irregularly striated, olive, decussated with rays of bright-green beneath a thin horny epidermis; posterior side straight, obtusely slanting, anterior arched, scarcely angled. Lamarck, Anim. sans vert. vol. vii. f. 4]. Hub. New Zealand. Of a peculiar straight olilong form, swollen and bluntly sloping on the posterior side, which is straight at the margin, whilst the margin on the anterior side is only slightly angularly curved. Species 13. (Mus. Cumiug.) Mytilus excisus. Myt. testa oblongo-ovatd, solidiusculd, curvatd, valde gibbosd, longitiidinaliter sulcata et li- ratd, liris confertis, crenidatis, hie illic bifurcatim iJivergentihis, latere postico obtuse coniracto, antico rutundato ; albidd, purpurascente-spadiceo titictd. The engraved Mytilus. Shell oblong-ovate, rather solid, curved, very gibbous, longitudinally grooved and ridged, ridges close-set, crenulated, here and there bifurcately diverging, posterior side obtusely contracted, anterior rounded ; whitish, tinged with purple-fawn. Tichogonia excisa, Wiegman, Archives, 1837. Mytilus fuscus, Kecluz. Ffab. Madagascar. Of very gibbous solid growth, with the diverging striae enlarged into conspicuously crenulated ridges. Species 14. (Mus. Cuming.) Mytilus ovalis. Myt. testa oblongo-ovali, plus minus gibbosd, lotigitudinaliter liratd, liris parum crenulatis, undatis, subdistantibua, interstitiis versus marginem lira altera interveniente ; umbonibus tumidiusculis, in- cumbentibus ; nigro-purpured, castaneo tinctd. The oval Mytilus. Shell oblong-oval, more or less gibbous, longitudinally ridged, ridges but little cre- nulated, waved, rather distant, interstices towards the margin with another ridge intervening ; umboes rather swollen, incumbent ; blackish-purple, stained with chestnut. In this species, as Lamarck describes, the umboes are compressly incumbent, presenting a link with the typical growth of the umboes in Modiola. The sculpture con- sists of slightly waved radiating ridges, with au alternate ridge appearing in the interstices as they widen out towards the margin. The colour is blackish-purple, pass- ing beneath the umboes into thestnut. August, 185^ mtau-sRy cfby- M. et M^ . "■Vincent 3xoolis Imp. M Y T I HI S Species 15. (Mus. Cuming.) Mytiia's hostratus. Myt. testa mbelongatd, versus umbones attenuatd el rostrata, longitudinaliter tenui- striatd, striis imdalis, hie illic ohsoletis, latere postico obtuse inciirw, antico rotnudato ; purpiireo-nigrd. The beakeb Mytilus. Shell rather elongated, atte- nuated towards the umboes and beaked, longitudi- nally finely striated, striae waved, here and there obsolete, posterior side obtusely incurved, anterior rounded ; purple-blaek. . DuNKER, W- in Mus. Cuming. 'i ^ Hab. Tasmania. Of rather elongated form, attenuated towards the um- boes, which are produced into a sharp beak. The strire are very superfieial. The colouring is very dark, only sliowing purple where bruised. Species IG. (Mus. Cuming.) MvTiLUS siNUATts. Myt. testa obloiii/o-flabelliformi, peculiariter arcuatd, obtuse gibbosd, Ifevlgatd, anfice cottcentrice striata, latere postico mtdio incurvo, antico d^iclivi-rotundato ; nigricante-viridi, nigra obscure len- tigittosd. The sinuated Mytilus. Shell oblong fan-shaped, pe- culiarly arched, obtusely gibbous, smooth, anteriorly concenirically striated, posterior side much incurved, anterior slopingly rounded ; very dark green, ob- scurely freckled with black. Dlwkeb, MS. in Mus. Cuming. Hab. Philippine Islands ; Cuming. Distinguished by its peculiarly arched gibbous growth, and dark sreen freckled colouring. Species 17. (Mus. Cuming.) Mytilus Dunkeri. Myt. testa trigmo-Jlabelliformi, postice plano-incurvd et gibhosd, antice declivi-com- pressd, versus umbones .iubanguste rostrata, radiatim superfcialiter striata, striis concentricis decussatd ; niteute-atrd. Dunker's Mytilus. Shell triangularly fan-shaped, pos- teriorly flatly incurved and gibbous, anteriorly slo- pingly compressed, towards the umboes rather nar- rowly beaked, radiately superficially striated, decus- sated with concentric strife ; shining black. Hab. Philippine Islands. I have the pleasure of naming this fiue species after the intelligent naturalist of Cassel, who has worked with so much zeal on the specimens of Mytilacece in Mr. Cuming's cabinet. It is a shining black shell, of a conspicuous fau- siiape, broadly gibbous and incurved on the posterior side, with the umboes coutracted and beaked. Species IS. (Mus. Cuming.) Mytilus cuneifor.his. Myt. testa elongato-oblongd, regulariter rotundato-trigoud, latere postico brevissimo, versus um/jones peculiariter declivi-conlorto, latere an- tico pralongo, compresso ; leeoigatd, vel obsolete decu/s- satim striatd ; nitente-corned, intense viridi, postice luteo-castaned. The WEDGE-snAPED Mytilus. Shell elongately ob- long, regularly rotuudately triangular, posterior sidt- very short, peculiarly slopingly twisted towards the umboes, anterior side very long, compressed ; smooth or obsoletely decussately striated ; shining horuy, very dark green, posteriorly yellowish-chestnut. Hah. Bay of Guayaquil (on mud-banks); Cuming. Of a dark shining horny-green, passing ou the posterior side into chestnut, with the interior delicately purple- stained. The curious posteriorly contorted attenuation of this shell near the umboes renders it easily recognized. Species 19. (Mus. Cuming.) Mytilus pallio-punctatus. Myt. testd elougato-flabet- formi, solidd, gibbosd, versus umbones attemiato-ros- tratd, latere postico late incurvo ; intense purpureo- nigrd. The mantle-dotted Mytilus. Shell elongately fan- shaped, solid, gibbous, attcnuately beaked towards the umboes, posterior side broadly incurved ; dee[) purple-black. . DuNKER,>IS. in Mus. Cuming. ' ^ ^ Hab. California and Mazutlan. This species is always so much eroded it is not possible to describe the sculpture. It appears however to be deve- loped originally in fine radiating striae. Mr. Carpenter describes it, in his Catalogue of the Reigen Collection in the British Museum, as being abundant at Mazatlan, and always similarly eroded. August, 1857. Mytihi^s. FT. TI. :cbY c\d etHa-.. Ifl-ncent IiTookE Imp. MYTILUS. Species 20. (Mas. Cuming.) Mytilus bokealis. Myt. lestd oblongo-ovald, .iuharctmtd, temd, tumidiuscttld, lavigatd vel decicssatm striata, antice snbplicatim corrttgatd, umbonibus paulo divari- catis ; nitente olkaceo-nigrd, ad umbones violaced. 'I'liE NORTHEEN Mytilus. Shell oblong-oviite, somewhat arched, thin, rather swollen, smooth or decussately striated, faintly plicately wrinkled on the anterior side, umboes a little divaricated ; shining olive-black, violet at the umboes. L.\M.\RCK, Anim. sans vert. vol. vii. p. 46. Hab. Newfoundland. A light, oval, swollen shell, of a dark shining olive- bhick colour, tinged with violet at the umboes, which are somewhat removed from each other. Species 31. (Mus. Cuming.) Mytilus Chiloensis. Myt. testa oblongd, suhjlabetli- formi, Imvigatd aid minute decussatim airiatd, latere postico recto, aniico suhdepresso, ad ■niarginem rotun- dato-angulato ; luteo-olivaced, versus marginem nitente- olivaced, el obscure radialim lineatd. The Chiloe Mytilus. Shell oblong, somewhat fan- shaped, smooth, or minutely decussately striated, posterior side straight, anterior slightly depressed, rotundately angled at the margin; yellowish-olive, towards the margin shining olive, and obscurely ra- diately lineated. Philippi, Dunker, MS. in Mus. Cuming. Ilab. Island of Chiloe. Of rather light substance, of a rich shining olive-colour, rayed with fine pencil lines. Species 23. (Mus. Cuming.) Mytilus M.\gellanicus. Myt. testa elongato-jnjrifo. compressiusadd, versus umbunes urcuatim attenuatti, longitudinaliter radiutim costatd, costis tindato-corru- gatis et crenatis, interdum prope marginem obsolelis ; intense violaceo-uigrd. The Magellan Mytilus. Shell elongately pear-shaped, rather compressed, arched and attenuated towards the umboes, longitudinally radiately ribbed, ribs wave- wrinkled and crenated, sometimes obsolete near the margin ; deep violet- black. Chemnitz, Conch, vol. viii. pi. 8.3, f. 7i3. Hab. Straits of Magellan. A very characteristic flattened pear-shaped shell, of a violet-black colour, covered with waved, wrinkle-like, cre- nated ribs. Species 33. (Mus. Cuming.) Mytilus Pekna. Myt. testa angusto-elongatd, cidd, versus umbones gibbd et postice obtuse angulatd, lavigatd vel decussatim striata; violascente, versus marginem intense viridi. The Perna Mytilus. Shell narrowly elongated, rather thick, gibbous and posteriorly obtusely angled to- wards the umboes, smooth or decussately striated ; violet, stained with dark green towards the margin. Mya Perna, Linnaeus, Syst. Nat. p. 1113. Mytilus elongatus, Chemnitz. Hab. Newfoundland. Of a narrow elongated form and solid structure, gib- bously obtusely angled towards the umboes on the poste- Fig. 24. (Mus. Cuming.) A fine example in an early stage of growth of Mytilu-^ talus represented at PI. IV. Fig. 12. It is only in this state that a characteristic dark horny band descending posteriorly from the umboes is seen. August, 18.57. ]i^ijus,n. w. jowerby M. el Tiih "Vrncent ^xookis It M Y T I L U S. Plate VII. Species 25. (JIus. Cuming.) Mytilus crassus. Myt. testa elongato-flabelUfornii, pos- tice arcnatd, late gibbom, nndique radiatim undato- striatd, striis cremdath ; intense rvfo-purpured. Thk thick Mytilus. Shell elongately fan-shaped, pos- teriorly arched, broadly gibbous, radiately wave-stri- ated throughout, striio crenulated ; deep reddish- purple. Septifer crassus. Danker. Uab. ? A dark reddish-purple shell, wave-striated throughout, with a characteristic septum across tiie interior of the um- bonal extremity of each valve, and which is regarded by authors as the type of a distinct genus, Septifer. Species 26. (Mus. Cuming.) Mytilus Menkeanus. Mi/t. testa subtrigono-elonyaia, solitld, valde gihbosS, radiatim valide corrugato-cos- taid, costis antice divergentibiis, ared posticd lata, de- pressd, creberrime crenulato-Uratd ; nitente luteo-cas- taned, intiis intense purpurea. Menke's Mytilus. Shell somewhat triangularly elon- gated, solid, very gibbous, radiately strongly wrinkle- ribbed, ribs diverging anteriorly, posterior area broad, depressed, very closely crenulately ridged ; shining yellowish-chestnut, deep purple in the interior. Philippi, Dunker, MS. in Mtis. Cuming. JM. New Holland. The sculpture is curiously developed, on the same plan, but in three different degrees. The posterior, anterior, and middle areas present a striking contrast. as representing Mytilus pictus. Born, M. Afer, Gmelin, described at Plate II. Species 28. (Mus. Cuming.) Mytilus smaragdinus. Myt. testa elongato-oblougd, convexd, margine antico declivi-angulatd, lievigatd aut decussatim striata, latere postico swbrecio, medio leviter arcuato; nigro-olivaced, versus margitiem vivide sma- ragdind. The bkight-green Mytilus. Shell elongately oblong, convex, slo])ingly angled at the anterior margin, smooth or decussately striated, posterior side nearly straight, slightly arched in the middle; very dark olive, bright-green towards the margin. Chemnitz, Conch. Cab. vol. viii. pi. 83. f 745. Mytilus opalinus, Lamarck. Hah. Borneo. This well-known species, in an advanced stage of growth, with the epidermis more or less worn oft' or eroded, shows a pearly structure, and is in this state the M. opalinus of Lamarck. Fig. 27. (Mus. Cuming.) This shell, here figured and which Mr. Cuming possesses Species 29. (Mus. Cuming.) Mytilus Grunerianus. Myt. tesldelongato-Jlabelli/ormi, postice late gibbosd, subrectd, antice ad margineni de- clivi-arcnatd, lavigatd, nitente, concentrice corrugato- striatd ; lutescente-spadiced, ad margineni purpureo- nigrd, intus plumbeo-carnled. Gruner's Mytilus. Shell elongately fan-shaped, pos- teriorly broadly gibbous, nearly straight, anteriorly slopingly arched at the margin, smooth, shining, con- centrically wrinkle-striated; yellowish-fawn, purple- black at the margin, lead-blue in the interior. DuNKEK, }jiSCm Mus. Cuming. '< ij Hab. Iceland. A fine new species, of a peculiar yellowish-fawn-colour, richly coloured towards the margin with purple-black, while the interior is of a dull leaden-blue. August, 1857- MytdiAs, n. vm. owate dtldlitii ■^ncsni Broiiks Imp. M Y T I L U S Species 30. (l\Ins. Ciiming.) Mytilus obscurus. Myt. testa mbquadrato-ohlongd, convexd, posttce hand impressd, concentrice striata; albida, sordide olioaceo aut rvfescente tinctd. The obscure Mytilus. Shell somewhat squarely ob- oblong, convex, not impressed on the posterior side, concentrically striated ; whitish, tinged with dull- olive or green. DuNKEK, Pro. Zool. Soc. 1856, p. 360. Halj. Sydney. Distinguished liy an even convex growth, not impressed, as is commonly the case in this genus, on the posterior side. Species 31. (Mus. Cuming.) Mytilus obesus. Myt. testa elongato-ovatd, soliduld, versus umhoms sitbangulato-attenaatd, rosiratd, lavi- gatd, plus minus rude erosd, obscure divaricatim pli- catd ; intense purpureo-atrd. The stout Mytilus. Shell elongately ovate, rather solid, somewhat angularly attenuated towards the umboes, beaked, smooth, more or less roughly eroded, obscurely divaricately plicated ; deep purple-black. DuNKER, MS. Mus. Cuming. Hub. Van Diemen's Land ; R. C. Gunn. A shell of solid structure and rough purple-black sur- face ob.?curely divaricately waved with rude folds. Species 32. (Mus. Cuming.) Mytilus gracilis. Myt. testa anguste elongald, tenia, versus umbunes attenuate productd, postice vix im- pressd, concentrice dense stria td ; albida, epidermide corned olivaced et intense caruko-viridi indutd. The slender Mytilus. Shell narrowly elongated, thin, attenuately produced towards the umboes, posteriorly but little impressed, concentrically densely striated ; whitish, covered with an olive and dark blue-green epidermis. Hab. Mexico. Distinguished in a conspicuous degree by its narrowly elongated form. Species 33. (Fig. a, b, Mus. Cuming.) Mytilus edulis. Myt. testa obligue trigond, concentrice striatd, carulescente-nigrd, vel olivaced nigro-radiatd, postice. subcompressd, antice arcuatim impressd. The edible Mytilus. Shell obliquely triangular, con- centrically striated, blue-black or olive, rayed with black, rather compressed posteriorly, anteriorly arcu- atcly impressed. LiNN.«us, Syst. Nat. (13th edit.) p. 1157. Mytilus pellucidus, Pennant. Mytilus incurvatus, Pennant. Mytilus vulgaris. Da Costa. Mytilus Jlavus, Poll. Mytilus sagittatns, Poli. Mytilus abbreviatus, Lamarck. Mytilus retusus, Lamarck. Mytilus hesperianus, Lamarck. Mytilus dilatatus. Gray. Mytilus subsaxatilis, Williamson. Hab. North Atlantic shores. The numerous synonyms annexed to this well-known species, evidence in a striking degree the many variations it assumes under ditferent circumstances of habitation. Fig. 34. (Mus. Cuming.) This tine shell proves to be a dark full-grown variety of M. Ifitifs, represented at Plate IV. Species 35. (Mus. Cuming.) Mytilds pilosus. Myt. iestd late trigond, versus urn- bones valde (jibbosd, postice concavo-impressd, midique forliter liratd, liris granulalo-scrralis ; liiteo-olivared, sparsim pilosd. The hairy Mytilus. Shell broadly triangular, very gibbous towards the umboes, posterioriy concavely impressed, everywhere strongly ridged, ridges granu- larly serrated, yellowish-olive. s])aringly hairy. Recluz, MS. in Mus. Cuming. Hub. ? A broadly triangular shell, very gibbous and contracted towards the umboes, the surface being densely seirately ridged throughout, covered with a yellowish-olive horny epidermis, bearded with rather distant bristly hairs. January, 1858. MyUlus, R. JL % % Vir:cer.T Bxoijlta lirrp. MYTILUS Species 36. (Mus. Cuming.) Mytilus angustands. Myt. testa angude oblongd, gib- hosiusculd, nmbonibus subconiractis, tumidis, margari- taceis, lavibus, exire7nitate concenirice striata, fidvo- fmcd, rotundatd. The narrow Mytilus. Shell narrowly oblong, rather gibbous, umboes somewhat contracted, swollen, pearly, smooth, extremity concentrically striated, fulvous-brown, rounded. Lamakck, Anim. sans vert. vol. vii. p. 1(5. Hub. Valparaiso. Distinguished by its narrow prolonged growth, par- taking somewhat of Modiola form. Species 37. (Mns. Cuming.) Mytilus tenuistkiatus. Myt. lestd trigono-oblongd, subcurvatd, postice gibbosd, antice compresse angulatd, radiatini dense striata, striis medio plus minus obsolc- tis ; olicaceo-fuscd, circa umbones alba, purpurascente tittctd. The pinely-sthiated Mytilus. Shell triangularly ob- long, rather curved, posteriorly gibbous, anteriorly comprcssly angled, radiately densely striated, striaj more or less obsolete in tlie middle; olive-brown, white, tinged with purple around the umboes. DiiNKEK, MS. Mus. Cuming. Hab. ? A shell of light substance, pui-ple-brown in colour, closely rayed with striae, which commence on the umboes, and then become obsolete, reappearing more strongly de- veloped at the margin. Species 38. (Mus. Cuming.) Mytilus Morrisi. Myt. testd anguste curvatd, versus umbones gibbosd, postice pecuUarifer concavd, undique radiatim sulcata, liris angustis, hie ilUc bifurcatis ; cairuleo-nigrd. Morris's Mytilus. Shell narrowly curved, gibbous towards the umboes, posteriorly peculiarly concave, everywhere radiately grooved, ridges narrow, here and there bifurcated ; blue-black. DuNKER, Pro. Zool. Soc. 1856, p. 3G0. Hab. Guinea. A narrow, peculiarly curved shell, bifurcately grooved and ridged after the manner of M. Nicobaricus. Species 39. (Mus. Cuming.) Mytilus Galloprovincialis. Myt. testd oblongd, pos- tice subdepressd, gibbosd, antice compresse dilatatd, undique lavi, cceruleo-nigrd, nitente. The Provence Mytilus. Shell oblong, posteriorly ra- ther depressed, gibbous, anteriorly compressly di- lated, everywhere smooth, shining, blue-black. Lamarck, Anim. sans vert. vol. vii. p. 46. Hab. Shores of Provence, Mediterranean. This species may be nothing more than a local modifi- cation of M. edulis ; it is, however, peculiarly compressly dilated on the anterior side. Fig. -10. (Mus. Cuming.) The shell here represented, Mytilus Kraussii, Kuster, is a characteristic orange-red variety of M. Nicobaricus, of which species the dark bronze-green state, described and figured at Sp. 43, is the type. Species -l-l. (Mus. Cuming.) Mytilus bifurcatus. Myt. testd trigo?io-ovatd, postice depressd, valdt' gibbosd, undique late conspicue sulcata, sulcis hie dlic bifurcatis, liris obtuse granulatis ; in- tense ceeruleo-nigrd. The bifurcated Mytilus. Siiell triangularly ovate, posteriorly depressed, very gibbous, everywhere con- spicuously grooved, grooves here and there bifurcated, ridges obtusely granuled ; deep blue-black. Co.NKAD, Journ. Acad. Nat. Sci. Philadelphia, vol. vii. pi. 241. A very .strongly grooved species, of a dark indigo blue- black colour. Species 42. (Mus. Cuming.) Mytilus Nicobaricus. lifyt. testd stibquadrato-oblongd, crassiusculd, postice late concavo-depressd, valde gib- bosd, ad umbones rostratd, antice Jlextwso-compressd, undique dense sulcata, liris granulato-serratis, hie illic bifurcatis ; intense cteruleo-viridi. The Nicobau Mytilus. Shell somewhat squarely ob- long, rather thick, posteriorly broadly concavely de- pressed, very gibbous, beaked at the umboes, ante- riorly flexuosely compressed, everywhere densely grooved, the ridges being granulately serrated, and here and there bifurcated; deep blue-green. Chem.mtz, Conch. Cab. vol. viii. p. 155-1 .57. pi. 82. f. 73G a, b, and 737 nos. 2 and 3. Mytilus bilocularis, Lamarck. Tichogonia bilocularis, Wiegman. Septifer bilocularis, Dunker. Hab. Eastern Archipelago, A characteristic densely-grooved species, of dark bronze- green colour, chambered within the umboes. January, 1857. Mtih.s. 11. X. % ^ ^ ^ ^ ^ SowcrW dd ellith. Vincent l&njots Imp M Y T 1 L L S Species V.i. (Mus. Cuming.) MvTii.us Amkuican'us. Mi/f. ledd Irigono-ovala, k'uni, convexd, conceiitrice striata; olivaced, subserieed. The American Mytilus. SIicll triangularly ovate, tliin, convex, concealrically striated ; olive, somewhat silky. Drcmma Amtrkaua, Kecluz, WS. in Mus. Cuming. Hah. Florida. A delicate silky olive shell, of thiu substaiur, rather convex. Species W. (Mus. Cuming.) MvTii.i's Sallei. Mijt. testa Ingouo-flabeUatd, ciirmld, postice impressa, umbonibus acute roslraiis ; sordide fuscescente, strujis nigricantiJbus remotk concentrice j)idd. Salle's Mytilus. Shell triangularly fan-shaped, curved, posteriorly impressed, umboes sharply beaked ; pale dirty-brown, concentrically painted with distant blackish streaks. Dreissetm Sallei, Recluz, Revne de Zool. 1819, p. 6;); Journ. de Conch, vol. iii. p. 2.55. pi. 10. f. 9. JIab. Central America. Of a ( neath thi beaked. I fan-shape, impressly nipped be- uianner to render them sliarply Species 45. (Mus. Cuming.) Species -K;. (Mn<. Cuming.) Mytilus tknebuosi.-s. Mt/t. tedd elongald, postice valde tjibbosd, latissimd, plano-impressd, ad amjulum acuta ; cmriduHcente-ulbd, nigra concentrice strigatd, epider- mide Jibrosd olivaceo-nigricante indutd. The dark Mytilus. Shell elongated, posteriorly very gibbous, very broad, flatly impressed, sharp at the angle ; bluish-white, eoucentrically streaked with black, covered with an olive-black tibrous epidermis. Dreisseua Cumingiana, llechiz, IMS. in Mus. Cuming. Ilab. Mississippi. Of elongated form, remarkably gibbuus, aiid broadly flatly impressed on the posterior side. Species 47. (Mus. Cuming.) MYTlHiS AfeicanUS. Myl. testd sitbeloiigafd, postice vix imprcssd ; sordide fused, epidermide Jibrosd concentrice indutd. TjiB African Mytilus. Shell rather elongated, poste- riorly scarcely im])ressed ; dirty-browu, concentrically invested with a fibrous epidermis. Dreissena ///"Wfiowa, Vanbenedeu, Ann. de Sci. Nat. 1S35. Hub. Senegal. The peculiarity of this species consists in its simple convexly elongated form, the posterior side showing scarcely any of the depression commonly typical of the Dreissena group. Mytilus Rossmassleri. Myt. testd trigono-Jlabellatd, subcurvatd, solidiasctdd, postice late impressa, gibiosd, \ albidd, epidermide tenui fiiscesceide concentrice Jtoc- catd. j Bossmassler's Mytilus. Shell triangularly fan-shaped, I somewhat curved, rather solid, posteriorly broadly impressed, gibbous; whitish, concentrically flaked [ with a thin light-brown epidermis. j Dreissena Eossmassteri, Dunker, MS. in ,Mus. Cuming. ' Hab. United States. ,' Chiefly distinguished by its broadly impressed gibbons I growth on the posterior side, and characteristic epidermis, which consists onlv of thin concentric flakes. Species 48. (Mus. Cuming.) Mytilus Domingensis. Mgt. testd elongatd, subcurvatd, versus umboues attenuatd el rostrald, postice subim- pressd ; purpvreo-fuscd, subrude concentrice striata. The Domingo Mytilus. Shell elongated, slightly curved, attenuated and beaked towards the luuboes, faintly impressed posteriorly ; purple-brown, some- what rudely concentrically striated. Drdssena Donungensis, Recluz, Journ. de Conch, vol. iii. p. 255. pi. 10. f. 8. J/ab. St. Domingo ; Salle. Characterized by a ] in the direction of the nttenuatelv beaked contour MYTILUS.— Plate X. Species 49. (Mus. Cuming.) MvTiLDS POLYMOKPHUS. Mi/t. testd trigono-lrapezoidea, postice valde gibbosd, latisdme concavo-imprensd, ad angnhim acuta, concentrice striata; luted, strigis acute midatis olivaceu concentrice variegatd. The many-shaped Mytilus. Shell triangularly trape- zoid, posteriorly very gibbous, very broadly coucavely impressed, sharp at the angle, concentrically striated ; yellow, concentrically variegated with zigzag olive streaks. Pallas, It. Russ. vol. i. p. 478 ; Chemn. Couch, fab. vol. xi. p. 256. pi. 20.5, pi. 202S. Mytilus Hagenii, De Baer. Mytilus area, Kicks. Dreissena polymorpha, Vanbeneden. Hah. Rivers of Northern Europe. This well-known species is distinguished from all others of the Dreissena group by its extreme trapezoidal form and variegated painting. Species 50. (Mus. Cuming.) Mytilus cochleatus. Myt. testa elongalo-ohlongd, tice snhangulatd, postice impressd, concentrice striata ; sordide fnscescente, purpurea concentrice strigatd. The spoon-shaped Mytilus. Shell elongately oblong, anteriorly slightly angled, posteriorly impressed, con- centrically striated ; dirty light-brown, concentrically streaked with purple. Dreissena cochleata, Kickx, Dunker, MS. in ilus. Cuming. Hab. r Of a rather oblong-produced form, streaked with a characteristic pattern of concentric purple bands. Species 51. (Mus. Cuming.) Mytilus Moechianus. Myt. testd trigond, subcurvald, postice subimpressd, umhonibus rostratis ; eroso-albd, vpidermide lutescente fibrosd partim indutd. Morch's Mytilus. Shell triangular, slightly curved, posteriorly faintly impressed, umboes beaked ; eroded- «hite, partially covered with a yellowish fibrous epi- dermis. Dreissena Morchiana, Dunker. Hab. Island of St. Thomas, West Indies. Of paler substance than usual in the Dreissena group, more or less invested with a yellowish fibrous epidermis. M^ulu^s PI. IT. ^ •"%. ^ «rl-xdii dMi Ymrent, Brooks Imp M Y T I L U S . PLATE Xr. Species 53. (Mus. Cuming.) Mytilus Cumingianus. Myt. leUd trigono-Jlahellatii, valde gibbosd, postice late subconcavo-impressd, nndiqw; radiaiim dense granoso-Uratd, Uris versus marymem plus minus diclmtomu ; pellucido-lutescente, riifo et vivide virescente variegatd. Cuming's Mytilus. Shell triangularly fan-shaped, very gibbous, posteriorly broadly somewhat coucavely im- pressed, radiately densely granosely ridged through- out, ridges more or less dichotomous towards the margin ; transparent-yellow, variegated with red and bright-green. Recluz, MS. in Mus. Cuming. Hab. Panama. A conve.v gibbously-eompressed shell, prettily varie- gated with red or bright-green upon a light semitranspa- rent ground. Species 53. (Mus. Cuming.) Mytilus curvatus. Myt. testd anbtrigond, soUduld, valde arcuatd, postice peculiariter impressd, v.mboni- bus subrostraiis ; fusco-corned, costidis diclwlomis ra- diatd. The curved Mytilus. Shell somewhat triangular, ra- ther solid, very much arched, posteriorly peculiariy impressed, umboes rather beaked ; brownish-horny, rayed with fine dichotomous ribs. Du.N-KER, Pro. Zool. Soc. 1856. Hab. Island of Luzon, Philippines ; Cuming. A short curved shell, curiously compressed, or pinched, as it were, beneath the umboes in the vicinity of the byssal orifice. Species 54. (Mus. Cuming.) JIytilus Lavalleanus. Myt. testd oblongd, Modioli- formi, valde gibbosd et tumidd, latere postico subtus impresso, radiatim obsolete sulcatd ; castaneo-fuscd. Lavalle's Mytilus. Shell oblong, l/o(/«o/a-shaped, very gibbous and swollen, posterior side impressed beneath, radiately obsoletely grooved ; chestnut- brown. D'Orbigny, Moll, de Cuba. Hab. Cuba. A short, swollen, gibbous species, partaking very much of the character of Modiola. Species 55. (Mus. Cuming.) Mytilus Adamsianus. Myt. testd ovato-trigond, valde gibbosd, postice plano-compressd, ad umbones attenitulo- rostratd, antice fiabellatd, undique nitide Jlexuoso-cos- tellatd, costelUs granulato-serratis, versus marginem dichotomis ; olivaced, nigra tinctd. Adams's Mytilus. Shell ovately triangular, very gib- bous, posteriorly flatly compressed, attenuately beaked at the umboes, fan-.shaped anteriorly, everywhere neatly flexuously ribbed, ribs granularly serrated, dichotomous towards the margin ; olive, tinged with black. DuNKER, Pro. Zool. Soc. 185G, p. 300. Hab. Panama; Cuming. A very pretty species, rayed throughout with finely ser- rated flexuous dichotomous riblets. 56. (Mus. Cuming.) Mytilus minimus. Myt. testd trigono-oblotigd, postice gibbosd et concavo-impressd, utrinque subacute angu- latd, dense conceiUrice striata ; albidd, fusco-piir- pureo tinctd. The VERY SMALL Mytilus. Shell triangularly oblong, posteriorly gibbous and concavely impressed, rather sharply angled on each side, densely concentrically striated ; whitish, stained with fuscous-purple. PoLi, Test. utr. Sicil. vol. ii. pi. 32. f. 1. Hab. Mediterranean. An unusually sharply-angled species, densely eoncentri cally striated, and darkly stained with fuscous-purple. Species 57. (Mus. Cuming.) Mytilus cubitus. Myt. testd Irigono-oblongd, subcur- vatd, postice obtuse gibbosd, impressd, undique radia- tim granoso-Uratd ; ulivaceo-luted. TuE COUCH Mytilus. Shell triangularly oblong, some- what curved, posteriorly obtusely gibbous, impressed, radiately gi'anularly ridged ; olive-yellow. Say, Journ. Acad. Nat. Sci. Philadelphia, vol. ii. p. 263. January, 1858. MYTILUS.-Pl.a,te XL Hab. ? Of simple, ratiK throuo-lioiit. gibbous form, graiiularly ridged Species 58. (Mus. Cuming.) Mytilus Charpentieri. Myt. testa oblongd, pecidiari- ter gibbosissimd, postice concavo-impressd et obtuse an- (julatd, undique dense flexuono-Uratd ; fiisco-hdm. Charpentier's Mytilus. Shell oblong, peculiarly very gibbous, posteriorly concavely impressed and obtusely angled, densely flcxuously ridged througbout ; fus- cous-yellow. Dunker, MS. in Mus. Cuming. ; s ^ -' Hab. Guinea. A densely-ridged fuscous-yellow species, remarkable for its extremely gibbous growth. Of rather narrow contracted growth, rayed with flexuous ridges, which are rather more than commonly distant. Species 60. (Mus. Cuming.) Mytilus glomeeatus. Myt. tesld oblongo-ovald, subob- liqttd, concentrice rude rugosd ; intense cteruleo-nigrd. The grouped Mytilus. Shell oblong-ovate, rather ob- lique, concentrically rudely wrinkled ; deep blue- black. Gould, Ms. in Mus. Cuming. v ^ / Hab. ? Named glomcralus fro such dense clusters. its habit of attaching itself Species 59. (Mus. Cuming.) Mytilus ustulatus. Myt. testa angusfe oblongd, gib- bosd, postice impressd, versus umbones subatlenuald, radiatim liratd, Uris subdistantibus, flexuosis ; albidd, nigricante-fnsco tinctd. The scorched Mytilus. Shell narrowly oblong, gib- bous, posteriorly impressed, rather attenuated towards the umboes, radiately ridged, ridges rather distant, flexuous ; whitish, stained with blackish-brown. Lamarck, Anim. sans vert. vol. vii. p. 40. Hab. Borneo. Species 61. (Mus. Cuming.) Mytilus granulatcs. Myt. testa oblongd, gibbos, ! postice concavo-impressd, radiatim liratd, liris con- j spicue granulatis ; olivaceo-luted. The granulated Mytilus. Shell oblong, very gibbous, j posteriorly concavely impressed, radiately ridged, j ridges conspicuously granulated ; olive-yellow. j IIanley, Recent Bivalve Shells, p. 246. I Hab. South America. This shell partakes so much of the form and colour of M. Charpentieri, that it would seem to be a variety of that species. It is however remarkable ibr its very de- fined granulated sculpture. MYTILUS. Mreviaiu-i, Lamarck VI li. Adarasiauus, Dunker XI. Afer, Gmelin II. Afrkanus, Chemnitz II. Africaniis(/)rms«w),Vaiibeiieden. X. Amcricaiuis (Dreissena), Recluz . X. atropurpureus, Dunker IV. angustus, PhiUppi IX. bifurcatus, Conrad IX. hilociilaris, Lamarck IX. borealis, Lamarck VI. Califoi-nianus, Conrad I. Charpeiitieri, Bmikcr XI. Chiloeiisis, PhiUppi VI. cochleatiis (Dreissena), Kickz . . X. oompressus, PhiUppi II. crassus (^'cy^/z/w), Dunker .... VI i, cubitus, Say XI. Cumingianus, Reclus XI. cuneiformis, Reeve V. curvatus, Dunker XI. dilalalus, Gray VIII. Domingensis {Dreissena), Recluz. X. Dunkeri, Reeve V. edulis, Linnreus VIII. elonr/atus, Ghemuitz VI. excisus (jTic^oyoj/fo), Wiegman . IV. exustus, Lamarck IV. flavus,Vo\{ VIII. Gallo-provincialis . IX. gloraeratus, Gould XI. gracilis, Reeve VIII. granulatus, Hanley XI. Grunerianus, Dunker A'll. Ilagenii, De Baer X. liamaUis, Say III. Iifsperianus, Lamarck VIII. PUte. hirsutus, Lamarck III. horridus, Dunker III. incuroatus. Pennant VIII. Kraussii, Kuster IX. latus, Lamarck IV. Lavalleanus, D' Orbitjny XI. Magellanicus, Chemnitz VI. Menkeanus, PhiUppi VII. minimus, PoU XI. Morchianus {Dreissena), Recluz . X. Morrisi, Dunker IX. Nicobaricus, Chemnitz IX. obesus, Dunker VIII. obscurus, Dunker VIII. opaUnus, Lamarck VII. ovalis, Lamarck IV. pallio-puuctatus, Dunker V. pellucidus, Pennant VIII. Perna {Mya), Linnicus VI. pilosus, Recluz VIII. polymorphus, Pallas X. retusus, Lamarck VIII. Rossmasleri {Dreissena), Recluz . X. rostratus, Dunker V. sagittalus, Poli. VIII. Sallei {Dreissena), Recluz X. sinuatus, Dunker V. smaragdinus, Chemnitz VII. striatus, Baines III. subsaxalilis, Williamson VIII. tenebrosus, Reeve X. tenuistriatus, Dunker IX. tortus, Dunker III. ungulatus, Linnaus II. ustulatus, Lamarck XI. vuhjaris. Da Cosla A'lII. MONOGRAPH OF THE GENUS M 0 D I 0 L A. " Fame is the spur that the clear spirit doth raise (That last intirmity of uoble minds) To scorn delights, and live laborious days."— J/itoi/. MorhdaPlJ. ■owralw ■ofl.el.lith.. "\ilTiceiit -Bt(io> ■ M 0 D I 0 L A. Plate I. Genus MODIOLA, Lamarck: Testa ohlonga, aquivalvis, plm minus ventricosa, umbombus patris, tumidiusculis, haud terminalibus, latere antico sape expanso, postico arcuato, coniracto. Cardo line- aris, ligamento marginali, subinieriio. Impresuo mus- cularis compodta, sublateralis. Shell obloug, equivalve, more or less veutricose, witli the iimboes small, rather swollen, not terminal, anterior side often expanded, posterior arched, contracted. Hinge linear, with the ligament marginal and par- tiaUy internal. Muscular impression compound, sub- lateral. The typical distinction between Mylilm and Modiola consists in the latter having a lighter and more cylindri- cally oblong shell, with the umboes rounder and not ter- minal, in consequence of the posterior extremity of the sheU protruding beyond them. This generic form' is, how- ever, subject to more decided variation than MytilL, and excellent subdivisions have been established under the names Modiolarca, Crenella or Lanistim. Modiola is somewhat more numerous in species than Mytilus, omitting even the Lithodond, which form an ex- tremely characteristic group, and they are often beauti- fully painted while less sculptin-ed. Their range of habi- tation is equally widely spread. dMlus. It is iiL-atJy ornamented throughout with raised thread-like stria;, but they exist apparently only in the epidermis. Species 1. (Mus. Cuming.) Modiola Philippinarum. Mod. testa oblongo-trapezi- formi, ventricosa, aniice sniexpansd, conceutrice deme filo-striald ; pnllide castanm, liiteo-radiatd. The Philippine Modiola. Shell obloi>g-trapeziform, ventricose, anteriorly somewhat expanded, concentri- cally densely thread-striated ; light-chestnut, yellow- rayed. Hanley, lleccnt Bivalve Shells, p. 235. Ilab. Philippine Islands. This interesting species, from the Philippine Islands, luLs very much the typical form of the European M. mo- Species 2. (Mus. Cuming.) Modiola modiolus. Mod. testa oblongd, subtrapeziformi, versus umbones ventricosa, laevigata vet obsolete corru- gato-striatd ; intense castaned. The bushel Modiola. Shell oblong, somewhat trape- ziform, ventricose towards the umboes, smooth or obsoletely wrinkle-striated ; dark-chestnut. Mytilus modiolus, Linn»us, Syst. Nat. p. U5S. Mytilus icmbilicatus, Pennant. Mytilus curtus. Pennant. Mytilus curvirosfraius. Da Costa. Modiola Papuana, Lamarck. Modiola m.odiolus, Turton. Modiola vulgaris, Fleming. Ihb. North Atlantic shores of Europe and America. This, the largest species of the genus, well known on our own shores, is common throughout the whole of Northern Europe and America. Species 3. (Mus. Cuming.) Modiola vagina. Mod. testa cylindraceo-oblonyd, recta, lenui, aubdepressd, concentrice dense subiilisdmi striata, radiatim linear i-striatu et obsolete undato-corrugatd] nltente-castanea. The sheath Modiola. Shell cyliudrically oblong, straight, thm, rather depressed, concentrically densely very fiiwly striated, radiately linearly striated and obsoletely wave-wrinkled ; shining-chestnut. Lamakck, Anim. sans vert. vol. vii. p. 22. Mytilus areuarius, Rumphius ? IM. Philippine Islands ; Cuming. A peculiarly straight, cyliudrically oblong species, of slight substance, with a delicate silky surface of a shinin.r- chestnut colour. " '^ January, 1858. ModioU.n.Ji. So'A'erisv del d.lith MODIOLA. Plate II. Species 4. (Mus. Cuming.) MoDIOLA ELONGATA. Mod. tests, elongato-trapeziformi, mbangmtd, tenui, latere postico subimpresso-arcuato, antico carinato-produclo ; nU.eute-castaned, olivaceo- luteo tinctd, imdique conceritrice striata. The elongated Modiola. Shell elongately trapeziform, rather narrow, thin, posterior side rather irapressly arched, anterior produced into a compressed keel: shining chestnut, stained with olive-yellow, concen- trically striated throughout. SwAiNsoN, Exotic Conchology, Second Edition, p. 81. f. S Rab. Moluccas. A delicate glossy fulvous-chestnut shell, of light sub- stance, elegantly produced in form. Fig. 5. (Mus. Cuming.) This fine shell proves on examination to be a specimen of very advanced growth of M. tulipa, described at PI. IV. Species 6. (Mus. Cuming.) Modiola nitida. Mod. testa elongato-oUoiigd, subcur- mtd, tenuiculd, tiimidd, concentrice striata, nitente- castaned, fulvo tinctd, latere postico recto, antico ver- sus extremitalem subjlabelliformi. The shining Modiola. Shell elongately oblong, some- what curved, rather thin, swollen, concentrically stri- ated, shining-chestnut, fulvous-tinged, posterior side straight, anterior a little fan-shaped towards the ex- tremity. Hab. Port Essington, New Holland. This pretty glossy species resembles M. elvngata, but more foreshortened, with the anterior side less produced into a keel. Species 7. (Mus. Cuming.) Modiola albicosta. Mod. testd subtrigono-oblongd, so- lidiuscttld, valde tumidd, latere postico subimpresso- arcuato, antico superne producto, Quasi alato ,- intense castaned, obscure fulvo-radiatd. The white-kibbed Modiola. Shell somewhat trian- gularly oblong, rather solid, very much swollen, pos- terior side rather impressly arched, anterior side pro- duced at the upper part, as if winged ; dark-chestnut, obscurely fulvous-rayed. Lamarck, Anim. sans vert. vol. vii. p. 19. Hab. Tasmania. We are indebted to the beautiful work of M. Delessert for being able to identify this species. The character which suggested to Lamarck the name " white-ribbed " arose apparently from the epidermis beit)g worn off the prominent central ridge of the shell. August, 1857. Mdw^^MM ^verl>Y oiLdlith ^feicaat IhrookB Inrp M 0 1) 1 O L A . Plate HI. (Mus. Cuming.) jDlOL.v I'LICATULA. Mod. tesld mbtrigono-obloHgd, pos- iice impresso-cnrvatd, antice lonffiiiidinalUer productd et flabellatim dilatatd, midique dense mlcald, liris, iti- fermediis mbplmmlatis, caitaneo-nigrd, oUvaceo-hdeo fiiictd. Till! PLICATED MoDiOLA. Shell somewhat triangularly oblong, posteriorly impressly curved, anteriorly lon- gitudinally produced and fan-like dilated, everywhere closely grooved, the intermediate ridges being rather ilat, chestnut-black, tinged with olive-yellow. Lamakck, Anira. sans vert. vol. vii. p. 22. Myliltts demissus, Dillwyn. MytiliiS pUcatulus, Deshayea, Hah. United States. An oblong gibbous species, closely sculptured through- out with flattened ridges, excavately grooved in the inter- stiees. Species 9. (Fig. 9 and 10, Mus. Cuming.) MoDU)l,.\ BAKBAT.\. Mod. leslu, Iriyono-Jlabelliformi, subcompressd, concentrice nitide Jih-striatd, vivide cas- (aned, piiis setaeeia versus marginem dense barbatd. The bearded Modiola. Shell triangularly fan-shaped, rather compressed, concentrically neatly thread-stri- ated, bright chestnut, densely bearded towards the niarpin with bristlv hairs. Lamarck, Anim. sans vert. vol. vii. p. 22. Mytilus barbuliis, Liuna;us. Mytilus modiolus, Brooks. Hab. Seas of Europe. A fan-shaped compressed species, partaking very mucli nf the character of ifytiius, densely covered with a stifl bristly b.'ard. Species 11. (Mus. Cuming.) Modiola capax. Mod. testa oblonga, subarcvatd, postice late impressd, valde gibbosd, antice dedivi-compressd, margine svperue obtuse angulato ; intense castaned, ver- sus marginem pilis setaceis sparsim barbatd. Thf, spacious Modiola. Shell oblong, slightly arched, posteriorly broadly impressed, very gibbous, ante- riorly slopingly compressed, margin obtusely angled towards the upper part; dark chestnut, sparingly bearded towards the margin with bristly hairs. Conrad, Journ. .\cad. Nat. Sei. Philadelphia, vol. vii. p. 242. Jfab. Galapagos Islands ; Cuming. California ; Nuttall. Mazatlan ; Carpenter. This chiefly differs from the preceding species in having more the typical form of the genus, more oblong and gib- bous, with the anterior margin more slopingly produced. It a])pears also to be less densely bearded. Mr/ip/r^.J'/./l. Yin cent Brodi..- Imp M 0 D I 0 L A. Species 12. (Mus. Cuming.) MoDioL.v .4RATA. Mod. testd cylindraceo-obloiujd, suban- i/iistd, rotundato-gibbosd, tenuiculd, fulco-castaned, undique nilide coiwentrice fih-striatd, latere postico contracto, antico carinato-producto, ad fxtremilatem decUvi-angulato. Thk furrowed Modiola. Shell cylindrically oblong, ratlier narrow, rotundately gibbous, rather thin, ful- vous-chestnut, neatly concentricaUy thread-striated throughout, posterior side contracted, anterior pro- duced into a keel, which is slopingly angled at the extremity. Dl'Nker, MS. in Mus. Cuming, Hab. North Australia. This interesting species is characterized by the homy epidermis, forming a beautiful concentric series of raised striae. which, however, as in the specimen figured at PI. II. Fig. 5, becomes more obscure with age. Species 13. (Fig. 13 and 14, Mus. Cuming.) Modiola Traillii. Mod. testa obloyigo-JlabelUformi, mb- rude concentrice striatd, latere postico plano-impresso, lafusime gibboso, antico declki-eompresso, interdum niargine angulalo-producto ; vivide castatted. Traill's Modiola. Shell oblong fan-shaped, rather roughly concentrically striated, posterior side flatly impressed, very gibbous, anterior side slopingly com- pressed, sometimes angularly produced at the margin ; bright chestnut. Bob. Malacca; Dr. Traill. Remarkable for the very gibbous development of the posterior side of the shell. Species 15. (.Mus. Cuming.) Modiola tdlipa. Mod. tentd obhngd, tenuiculd, ventri- cosd, laterepostico .iubcoitracto, antico declim-producto, undique subtilissimi concentrice striatd; aurantio-lu- ted, rufo-ca-staneo plus niimi.f radiatd. The tulip Modiola. Shell oblong, rather thin, ven- tricosc, posterior side somewhat contracted, anterior slopingly produced, everywhere very finely concentri- cally striated ; orange-yellow, more or less rayed with reddish-chestnut. Lamarck, Anim. sans vert. vol. vii., p. 18. Hab. West Indies. Generally distinguished by its prettily-rayed painting. Species 16. (Fig. a, b, Mus. Cuming.) Modiola Metcalfei. Mod. testa subtrigono-oblongd, angustd, ventricosd, leevigatd aut subtilisgime striatd, latere postico recto, paulo coarctato, antico in alam compressam angulato-prodticlo ; luteo-castaned, fascia cisruleo-purpurascente ab umbone radiatim descendente; interdum epidermide pilosd versus margine-m indutd. :Metcalfe's Modiola. SheD somewhat triangularly ob- long, narrow, ventricose, smooth or very finely stri- ated, posterior side straight, a little contracted, an- terior angularly produced into a compressed wing ; yellowish-chestnut, with a bluish-purple band, radi- ately descending from the umbo ; sometimes covered towards the margin with a hairy epidermis. Hanley, Pro. Zool. Soc., 1844; Cat. Recent Bivalve Shells, p. 235. Ilab. Philippine Islands ; Cuming. The elegant keel-winged form of this shell is peculiar, but its chief characteristic is the presence of a conspicu- ous broad purple band, radiating from each umbo. Species 17. (Mus. Cuming.) Modiola Brasiliensis. Mod. testd trigono-fiabelliformi, latere postico subcontracto, Uevigato vel subtilisisime striato, antico carinato, deinde late dilatato, et con- centrice filo-striato ; ared posticd fulvo-castaned, an- ticd vivide tsrugineo-viridi, punctis et lineis fexuosis minutis lentiginosd. The Brazilian Modiola. Shell triangularly fan-shaped, posterior side somewhat contracted, smooth or very finely striated, anterior keeled, then broadly dilated, and concentrically thread-striated ; posterior area ful- vous-chestnut, anterior bright metallic-green, freckled with dots and minute flexuous lines. Chemnitz, Conch. Cab. vol. ii. pi. 205. f. 2020 and 2021. Modiola Guyanensis, Lamarck. Modiola semifusca, Sowerby. Hab. Brazil. This very pretty species may be readily distinguished by its striking contrast of colour, the posterior area being a glossy fulvous-chestnut, almost smooth, while the poste- rior is a bright pale metaUic-green, with the striae raised in thread-like ridges. August, 1857. Mcdioia n. y. Scroraibs' ddetlith. \/iiiceiix ^Brooks Imp. MOD 10 LA Species 18. (Mus. Cuming.) MoDinLA I'NDULATA. Mo(l. testa oUongd, gibhosd, ienui, latent pustico roluudalo, antico subflabelliformi, medio obtuse angulatd, ad anyulum subobscure plicato-corru- gatd ; lulemente-ficscd, iiUenle. The waved Modiola. Shell oblong, gibbous, thin, posterior side roundocl, anterior somewhat fan-shaped, obtusely angled in the middle, rather obscurely pli- cately wrinkled ; yellowish-brown, shining. Fohella undiiLata, Dunker, Pro. Zool. Soc. 18.56, p. .3eautirully sculp- lunil and coloured. Species 23. (Fig. 23 and 21, Mus. Cuming.) Modiola nitens. Mod. testa elongato-trapeziformi, an- gustd,postice attenuato-titmidd, valide gibboso-dislorld, angulatd; intense virescente-olivaced, nitente. The shining Modiola. Shell elongately trapeziforni, narrow, attenuately tumid posteriorly, gibbously dis- torted, angled ; dark greenish-olive, shining. ('aui'ENTER, Cat. Reigen Coll. in Brit. Mus. Jlab. California. .\ dark, greenish-olive, narrow, boat-shaped shell, with ilie posterior sides curiously gibbously distorted. ModiolcL, PI. M. ^ 1^ ^ Sowciiv iel.stltth, T/mcent Brooks Itlj. ]M 0 D I 0 L A . Plate VI. Species 25. (Mus. Cuming.) MoDioL.^ PLICATA. Mod. Ustd ohlongo-naviformi, tenui- r.uld, latere postico brevi, tumidiusculo,rotundato, liris brcvibus subdistantibus rugato, antico compresse dila- lato, margine angulato-producto ; subpellucidd, epider- mide tenui corned olivaceo-castaned nitente indutd. The plicated Modiola. Shell oblong-boat-shaped, ra- ther thin, posterior side short, rather swollen, rounded, wrinkled with rather distant short ridges, anterior side eompressly dilated, angularly produced at the njargin; semitrausparent, covered with a shining, olive-chestnut, horny epidermis. Lamarck, Anim. sans vert. vol. vii. p. 25. M^/iliis piieatits, Gmelin. Hab. West Africa. A very light, broad, rather compressed shell, delicately plicately wrinkled. Species 26. (JVIus. Cuming.) IVLodiola Japonica. Mod. testa cylindraceo- gmta, tenui, lateribus roiundatis, postico brevissimo, altenuato ; pellucido-virescente, roseo-pnrpureo concen- trice undatd. The Japan Modiola. Sliell cylindrically oblong, nar- row, sides rounded, posterior very short, attenuated ; transparent green, conceniiically waved with rose- purple. f'olsdta Japonica, Dunker, Pro. Zool. Soc. 1S56, p. 363. Hab. Japan. A slender shell, very elegantly painted. Species 27. (Mus. Cuming.) Modiola akcuatula. Mod. testa arcuato-eloiigatd, sub- angustd, 'medio valide gibboso-angulato, latere postico parvo, antico subjlabellato ; pellucido-corned, purpureo irregnlariter undatd. The arched Modiola. Shell arouately elongated, ra- ther narrow, strongly gibbously angled in the middle, posterior side small, anterior somewhat fan-shaped ; transparent horny, irregularly waved with purple. Hanley, Pro. Zool. Soc. 1S44. Modiola varicosa, Gould. Hub. Singapore and Philippine Islands. Chiefly distinguished by its arched form and gibbously angled growth. The painting consists of purple vein-like stains of irregular |)attern, upon a semitrausparent horny ground. Fig. 28. (Mus. Cuming.) Modiola rhomboidea. Mod. testa elongato-rhomboided, tenuiculd, latei-e postico brevi, rotundato, antico valde elongato, margine compresse angulato ; nitente luteo- castaned, postice obscure saturate fasciatd. The rhomboid Modiola. Shell elongately rhombo: rather thin, posterior side short, rounded, anteri very elongated, eompressly angled at the margi shining yellowish-chestnut, obscurely darker banded on the posterior side. Hanley, Species Recent Shells. Hab. The Gambia, West Africa. An elegantly-formed species of very simple character, beyond the concentric lines of growth inclining to become corrugated on the median angular ridge and beneath the umboes. Fig. 29. (Mus. Cuming.) The specimen here figured is a fine characteristic exam- ple of M. elegans, represented in the preceding Plate. Species 30. (Mus. Cuming.) Modiola arborescens. Mod. testa subcglindraceo-ob- longd, tenui, compresse comexd, IcBvigatd, lateribus roiundatis; Ititescente-albd, ferrugineo-tinctd, antice lineis tenuibus nigricantibm irregnlariter dense divari- catim reticulata. The arborescent Modiola. Shell somevyhat cvUn- drically oblong, thin, eompressly convex, smooth, sides, rounded; yellowish-white, stained with rust, ante- riorly irregularly densely divaricately netted with fine blackish lines. Mytilus arborescens, Chemnitz, Conch. Cab. vol. ii. pi. 198. f. 2016-17. Modiola picta, Lamarck. Hab. West Indies. Peculiarly distinguished by its arborescent pattern of network on the anterior side. Fig. 31. (Mus. Cuming.) This dark-coloured shell, tinged on the anterior side with bronze-green, is the typical M. Brasiliensis from Brazil. The light-coloured specimen represented at PI. IV. Fig. 17, is a variety from Guayaquil. }Iodiola, PL TIL xTwarbv del ^i/iith "feicervt Bicoks iTDp M 0 D I 0 L A. Species 32. (Mus. Cuming.) MoDlOLA GUBERNACULDM. Mod. tesfd subquadrato-ob- longd, arciiatd, latere postico brevisshm, mbroatrato, antico late flabelliformi, undique dense concenlrice striata; lutescente, radiis linearibits licido-nendeis pictd, versus marginem fitsco tinctd. The rdddkk Modiola. Shell somewhat squarely ob- long, curved, posterior side very short, somewhat beaked, anterior broadly fan-shaped, densely concen- trically striated throughout ; yellowish, painted with livid-blue linear rays, stained wiih brown towards the margin. Folsella ffiibeniacii/ urn, Jhmker, Pro. Zool. Sue. 1850, p. 361. IJab. ? Partaking very much of the typical character of Mi/ti- lus, and especially distinguished by its painting of livid- blue linear rays upon a yellowish ground. Species 33. (Mus. Cuming.) Modiola stei&ata. Mod. testa subeloiigatd, temii, gib- hosd, postice attenuaid, antic? subangnste producld, IrBvigatd, viridi eximie tiuctd et varit'gatd. The streaked Modiola. Shell somewhat elongated, thin, gibbous, posteriorly attenuated, anteriorly ra- ther narrowly produced, smooth, prettily stained and variegated with green. Mytilas strigatus, Ilanley, Pro. Zool. See. 1844. Hal. Philippine Islands. A thin shell, of rather narrow gibbous growth, i)rettily painted with rich green, which, on the anterior side, is in oblique bands. Species 34. (Mus. Cuming.) Modiola TiusTis. Mod. testd sicbelovgatd, tenui, postice trigojio-attenuatd, antice rectd, compressd, hevigatd ; fulvo-castaned, nitente. The sad JIodiola. Shell somewhat elongated, thin, posteriorly triangularly attenuated, anteriorly straight, compressed, smooth ; fulvous-chestnut, shining. yohella tristis, Uunker, Pro. Zool. Soc. 1S56, p. 302. Ifab. Chusan ; Capt. Benson. A light shell, of semitransparent substance, remarkablr for its straightly-produced VolseUa-X\]ii& growth anteriorly. Species 35. (Mus. Cuming.) Modiola speciosa. Mod. testa longissimd, redd, laierf postico brevi, rotundato, parum gibioso, antico clou- gato, gradatim latiore, medio oblique obtuse angulato ; pellucido-albd, epidermide corned decidud, postice ful- vd, antice siiiaragdind indntd, intus margaritaced. The beautiful Modiola. Shell veiT long, straight, posterior side short, rounded, but little gibbous, an- terior elongated, gradually broader, obliquely obtuse- ly angled in the middle, covered with a deciduous horny epidermis, which is fulvous on the posterior area and bright green anteriorly, interior pearly. I'olseUa speciosa, Dunker MS. in Mus. Cuming. IJab. Tumbez, Peru ; Cuming. A very rare and beautiful species, remarkable for its elongated form and richly-coloured horny epidermis. Fig. 30. (Mus. Cuming.) This shell proves to be the young of M. nitidn, repre- sented at Plate II. The anterior slope of the shell i.- ciiaracterized by a peculiar rippled structure. Species 37. (Mus. Cuming.) Modiola splendens. Mod. testd oblongo-ovatd, tenui- culd, ntrinque rotundatd, latere postico gibboso, im- dique lavigatd, nitente, vel miniUissime decussatim striatd ; fulvd et intense hrunned, partim iridescente- viridi. The splendid Modiola. Shell oblong-ovate, rather thin, rounded at both ends, posterior side gibbous, smooth throughout, shining, or very minutely decus- sately striated; fulvous and dark-brown, partially iridescent-green. Mylilus splendens, Dunker, Pro. Zool. Soc. 1S5G. p. 358. llab. Peru. October, 1857. MODIOLA.— Plate VII. A shining, horny shell, the surface being elegantly clouded with brown and fulvous intermixed with irides- cent green. Species 38. (Mus. Cuming.) MopiOLA EECTA. Mod. testd elongatd, medio oblique gib- boso-angnlatd, latere postico peculiariter compresse producto, antico subalaformi ; albidd, epidermide cor- ned fulvd nitente, antice sparsim pilosd indutd, poitice late fusco-fasciatd. The straight Modiola. Shell elongated, obliquely gibbously angled in the middle, posterior side pecu- liarly compressly produced, anterior somewhat wing- shaped ; whitish, covered with a shining horny epi- dermis, fulvous and sparsely hairy anteriorly, broadly brown-banded posteriorly. CoNEAD, Journ. Acad. Nat. Sci. Philadelphia, vol. vii. p. 245. pi. 19. f. 1. Hab. ? Distinguished by a strict peculiarity of form, the poste- rior side being curiously compressly produced, whilst the anterior side is wing-shaped, like some of the Avicula. JlcdjrIaJ'lTni. Sowerby M eLitii Vincent Brooks iu]) M 0 D I 0 L A. Species 39. (Mus. Cuming.) MouioLA opiFEX. Mod. teM oblongo-cuneiformi, gib- hosa, radiaiim sulcosd, latere postico brevmimo, antico angulaio-aitentmio ; caslaneo-corned, niteiUe, versus exlremitateni anticam rude setigerd. The .\etificer Modiola. Shell oblong wedge-shaped, gibbous, radiately grooved, posterior side very short, anterior angularly attenuated ; chestnut-homy, shin- ing, rudely bristled towards the anterior extremity. Say, Journ. Acad. Nat. Sci. Philadelphia, vol. iv. p. 369. Hab. Eio Janeiro. Unlike most Modiolis, this species is attenuated ante- riorly, broadly gibbous, and roughly clothed at the extre- mity with an epidermis of bristly liairs. Species 40. (Mus. Cuming.) Modiola vexillum. Mod. testa subtrigono-flabelUformi, tend, pellucidd, latere postico subgibboso, antico angu- lato-expanso ; jhvescente, olivaceo-viridi, nitide undu- latini pictd. The flag Modiola. Shell somewhat triangularly fan- shaped, thin, transparent, posterior side rather gib- bous, anterior ansularly expanded; yellowish, neatly painted with waves of olive-green. Vohella picta, Duuker (not M. picta, Lamarck). Hab. Australia. Of thin, transparent substance, prettily variegated with concentric dark-green zigzag waves. Species U. (Mus. Cuming.) Modiola Mageixanica. Mod. testa oblongo-lrapezoided, postice gibbosd, antice subexpansd, nndique radiatim sulcata; fuhescente. The Magellan Modiola. Shell oblong-trapezoid, pos- teriorly gibbous, anteriorly rather expanded, radi- ately grooved throughout ; light fulvous. Vohella Magellanica, Duuker MS. in Mus. Cuming. Hab. Straits of Magellan. Of a light fulvous colour, rayed throughout with close- set longitudinal grooves. Species 42. (Mus. Cuming.) Modiola perfeagilis. Mod. testa elongatd, lenui, iiii- dique mitmtissime decussatim striata, striis posticii longitudinalibus incisis, extremitate posticd parvn, ro- tundatd, anticd obligud ; pellucido-albd, nitente, vires- cente tinctd. The very fragile Modiola. Shell elongated, thin, very minutely decussately striated, posterior longitu- dinal, stria? engraved, posterior end small, rounded, anterior rather oblique; transparent-white, shining, tinged with pale-green. Volsella perfragilis, Dunker, Pro. Zool. Soc. 1850, p. 362. Hab. Moluccas. In substance this shell is very thin, transparent-white, tinged with sea-green, and on examination with a lens, the surface will be found to be minutely decussately sculp- tured, the longitudinal striae being irapressly engraved. Species 43. (Mus. Cuming.) Modiola scbramosa. Mod. testa subtrigono-oblongd. ieniii, sem.ipellucidd, concentrice tenuistriatd, radiatim ramoso-liratd, liris obtusis, subjlexuosis, latere postico parvo, gibboso, antico trigono-flabelliformi ; lutescenle. pitrpureo-rnfo tinctd. The branched Modiola. Shell somewhat triangularly oblong, thin, semitransparent, concentrically finely striated, radiately branch-ridged, ridges somewhat flexuous, posterior side small, gibbous, anterior tri- angularly fan-shaped ; yellowish, stained with purple- red. Hanley, Pro. Zool. Soc. 1844, p. 14. Hab. Island of Mindanao, Philippines ; Cuming. A somewhat fragile shell, neatly rayed with obtuse ridges, which branch off in a flexuous manner, particularly in the anterior direction. Species 44. (Mus. Cuming.) Modiola subpukpurea. Mod. testa elongatd, stibar- cuatd, tenuicidd, gibbosd, Icevigatd, latere postico ob- tuse rotmdato, antico compresse producto ; nitente- olivaced, subpurpured. The purplish Modiola. Shell elongated, somewhat October, 18.57. MODIOLA.— Plate VIII. arched, ratber thin, gibbous, smooth, posterior side obtusely rounded, anterior compressly produced ; shining-olive, tinged with purple. Vohella subpurptirea, Duuker, Pro. Zool. Soc. 1856, p. 362. Hab. Senegal. Of a somewhat horny substance, and dark shining pur- plish-olive colour. Fig. 45. (Mus. Cuming.) A full-grown specimen of .¥. arcuatida, described at Plate VI. Kg. 27. Species 46. (Mus. Cuming.) MoDiOLA Petagnj;. Mod. testa elongatd, tenuksimd, postice longitudinaliter striata, nilente-corned, antice concentrice striata, pulchre iridescente-aruginosd, li- neis ru/escentibtts undique palUde reticulata. Petagn's Modiola. Shell elongated, very thin, posteri- orly longitudinally striated, shining horny, anteriorly concentrically striated, beautifully iridescent-verdi- gris, faintly reticulated throughout with reddish lines. ScACCHi, Phil. Enum. Moll. Sicil. vol. ii. p. 51. Hab. Mediterranean, and Galveston, Texas. A beautifully delicate transparent shell, having the pos- terior side horny and shining, while the anterior is of a delicate verdigris-colour and iridescent. dio contractd, midique dense sulcata, lateribus rotunda- tis, antico subangulato ; fulvo-castaned, postice niteiite- corned, antice sparsim setigerd. The geooved Modiola. Shell oblong, gibbous, con- tracted in the middle, densely grooved throughout, sides rounded, anterior slightly angled ; fulvous-chest- nut, posteriorly shining horny, anteriorly sparsely bristly. Volsella submlcata, Duuker, Pro. Zool. Soc. 1856, p. 364. Eab. Bay of Manila ; Cuming. The form of this species is rather gibbous throughout, the entire surface being closely finely grooved. Species 48. (Mus. Cuming.) Species 47. (Mus. Cuming.) Modiola subsulcata. Mod. testa oblonga, gibbosd, me- MoDioLA GLABEKKIMA. Mod. testd subtrigono-elongatd, tenui, lavigafd, nitente, latere postico parvo, attenuate, antico gradatim latiore, margine oblique rotundato ; pallide olivaceo-comed, terugineo-purpurascente radia- tim lineatd et concentrice strigatd. The glossy Modiola. Shell somewhat triangularly ovate, thin, smooth, shining, posterior side small, attenuated, anterior gradually broader, obliquely rounded at the margin ; pale olive-horny, radiately lineated and concentrically streaked with light bronze- purple. Folsella glaberrima, Pro. Zool. Soc. 1856, p. 363. Hab. Sydney. A very delicate horny shell, decussated with character- istic lines and bands of red-bronze purple. Modiola. II. IX ^ Sowerby del etlilh Vincent Brooks Imp M 0 D I 0 L A. Plate IX. Species 49. (Fig. 62, Mus. Cuming.) MoDioi.A NIGRA. Mod. testa subquadrato-omtd, com- jiresuiuculd, aniice dense tenuiitriata, medio leevigatd, poslice ad extremitateiri liratd; purpureo-nigrd. The black Modiola. Shell somewhat squarely ovate, rather compressed, anteriorly densely finely striated, smooth in the middle, posteriorly ridged at the extre- mity; purple-black. Hanley, Brit. Marine Couch., Eecent Bivalve Shells, p. 242. Lanisliua nigra, Gray, Conch. Syst. pi. 100. f. 3. Hab. Orsund Bay, Sweden. A rather compressed species, of deep purple-black co- lour, belonging, together M'ith the rest of the species in this Plate, to the genus Modiolarca, CretieUa, and Lank- Una of authors. Species 50. (Fig. 63, a, 6, Mus. Cuming.) Modiola Cumingiana. Mod. testd oblongo-ctmeiformi, curimld, ienuiculd, aniice valde gibbosd, tumidd, temd- siriatd, obtuse angulatd, medio lavigatd, postice ad extremitatem obscure liratd; fulvescenle-cortied, rufes- cente-fiisco interdum nndatd. Cuming's Modiola. Shell oblong wedge-shaped, curved, rather thin, very gibbous and swollen anteriorly, fine- ly striated and obtusely angled, smooth in the middle, posteriorly obscurely ridged at the extremity ; ful- vous-horny, sometimes waved with reddish-brown. DuNKER, MS. Mus. Cumiug. Ilab. Moreton Bay, .Australia. An extremely delicate species, of a characteristic swollen wedge-shape. Species 51. (Fig. 64, Mus. Cuming.) Modiola i.mpacta. Mod. testd ovato-eimeiformi, tumidd, postice et antice radiatim liratd, liris angustis, sitbre- motis, ittrinque excavatis, medio lavigatd; intense oli- mced, corned, nitente. The driven Modiola. Shell ovately wedge-shaped, swollen, posteriorly and anteriorly ridged, ridges narrow, rather distant, excavated on both sides, smooth in the middle ; dark-olive, horny, shining. Herman, Naturforscher, vol. xvii. pi. 3. f. 5-8. Mytilus cor, Marty n. Mytilus discors, Lamarck (not of Linnreus). Hab. New Zealand (in sponge). This, the finest species in the group, is not, as shown by M. Deshayes, the Liunean Mytilus discors. It is larger and more gibbous, j)carly and purple-rayed within. Chemnitz gives a characteristic figure of the species vol. viii. pi. S6. f 768. Species 52. (Fig. 65, JIus. Cuming.) Modiola discors. Mod. testd oblongd, subciineiformi, tumidd, antice radiatim liratd, liris tenuibus, subob- scuris, liris posticis fortioribus, remotis, medio lavi- gatd; olivaeed, corned, nitente. The differing Modiola. Shell oblong, somewhat wedge-shaped, swollen, anteriorly radiately ridged, ridges fine, rather obscure, posterior ridges stronger and more distant, middle smooth ; olive, horny, shining. Mytilus discors, Linnseus, Syst. Nat. p. 1159. Mytilus discrepans, Lamarck. Hab. Massachusetts (found adhering to seaweed) ; Gould. The anterior stria; in this species are fine and close-set. Species 53. (Fig. 66, Mus. Cuming.) Modiola laevigata. Mod. testd oblongo-ovatd, antice latiore, subcompressd, undigue concentrice striata, me- dio subexcavatd, extremitate posticd obscure sulcata; olivaceo-castaned, corned, nitente. The smooth Modiola. Shell oblong-ovate, broader an- teriorly, rather compressed, everywhere concentrically striated, slightly excavated in the middle, posterior extremity obscurely grooved ; olive-chestnut, horny, shining. Lanistina lavigata. Gray. Hab. Greenland. The peculiarity of this species consists chiefly in the an- terior area not being longitudinally ridged. Species 54. (Fig. 67, Mus. Cuming.) JMoDioLA nexa. Mod. testd oblongo-ovatd, convexo-com- pressd, antice parum latiore, undique dense lineari-sul- calls et liratis, liris medianis siibtilissimis, fere obso- ktis ; castaneo-fnscd, mnbonibus plus minus ero-tis, margaritaceis. The tied Modiola. Shell oblong-ovate, convexly com- pressed, anteriorly but little broader, everywhere densely linearly grooved and ridged, middle ridges very fine, almost obsolete ; chestnut-brown, umboes more or less eroded, pearly. Gould, Invert. Massachusetts. Hab. Massachusetts Bay ; United States. A rather compressed red -brown species, in which the ])osterior and anterior portions are sculptur(;d alike with 1 densely-set stria;. December, 1857. o Mhi, PL X. m Sw/erby (M-dlitlri ■^Bn-'^enT. Btooks Imp MODIOLA. Species 55. (Fig. 68, Mus. Cuming.) MoDiOLA cosTDLATA. Mod. testa ovatd, subexpansd, pel- lucido-corned, postice et antice minnte subobsolete cos- tulatd, umbonilius parvis contractis. The finely-ribbed Modiola. Shell ovate, rather ex- panded, transparent horny, posteriorly and anteriorly minutely rather obsoletely finely ribbed, uraboes small, contracted. Risso, Hist. Nat. d'Europe Mcrid. vol. iv. p. 324. f. Ifio. Crenella costulaia, Forbes and llanley. Sail. Southern Europe. A small horny shell, with the umboes unusually con- tracted. Species 36. (Fig. 69, Mus. Cuming.) MoDloi.A nana. Mod. testd 'iiiiimtd, oblique ovatd, tenui, umboiubn» subroslratis ; pellncido-coriii'd, lineis riifes- centibus variegatd. TiiK PWARF Modiola. Shell minute, obliquely ovate, thin, umboes somewhat beaked : transparent horny, variegated with reddish lines. Lanistina nana, Dunker, Pro. Zool. Soc. 1856, p. 365. Hab. Port Lincolu, Australia. A very minute semitransparent bronze-horny shell, va- I'iegated with fine zigzag reddish lines. Species 57. (Fig. 70, Mus. Cuming.) Modiola subtokta. Mod. testd parvuld, siibtortd, oh- luiigo-trapezind, versus mtiiones attenuatd, conceiitrice riKjosd, postice albidd, antice nigricante-fuscd. The twisted Modiola. Shell rather small, slightly twisted, oblong-trapezoid, attenuated towards the umboes, concentrically wrinkled, posteriorly whitish, anteriorly blackish-brown. Modiolarca subtorta, Dunker, Pro. Zool. Soc. 1856, p. 365. Hab. New Holland. A narrow trapezoid shell, peculiarly sliirluly twisted. The wood Modiola. Shell oblong, ventricose, rather solid, shining chestnut, concentrically rudely striated, narrowly contracted in the middle, umboes globosely swollen. Hab. ? A rather solid ventricose shell, striated only concentri- cally with a smooth shining-chestnut epidermis. Species 59. (Fig. 72, Mus. Cuming.) Modiola striatula. Mod. testd elongato-trapezind, sub- angnstd, medio gibbosd, tenuiculd, undique radiatim dense tenuiliratd ; oUvaced, nigra radiatim fasciatd. The striated Modiola. Shell elongately trapezoid, rather narrow, gibbous in the middle, rather thin, everywhere radiately densely finely ridged ; olive, radiately banded with black. Hanley, Recent Bivalve Shells, p. 241. Hab. Philippine Islands. Of a peculiarly elongated trapezoid form, densely finely ridged throughout, the ridges radiating oflf wider and rather more distinct on the anterior margin. Species 60. (Fig. 73, Mus. Cuming.) Modiola emarginatus. Mod. testd oblongo-trapezind, antice oblique subflabellatd, postice contractd, subcana- Ucnlatd, radiatim tenuiliratd ; uigricante-olivaced. The emarginated Modiola. Shell oblong-trapezoid, anteriorly obliquely somewhat fan-shaped, posteriorly contracted, rather channelled, radiately finely ridged ; blackish-olive. Benson, MS. in Mus. Cuming. Hab. ? Of more solid structure and less elongated form than the preceding species, not so strongly and regularly ridged. Species 58, (Fig. 71, Mus. Cuming.) Modiola lignea. Mod. testd oblongd, ventricosd, so- lidiusculd, nUente-castaned, concenirice rude striald. medio angnste contractd, umbonibus globoso-tmnidis. January Species 61. (Fig. 74, Mus. Cuming.) Modiola sulcata. Mod. testd elongatd, antice Jlabellatd, margine sidiangulatd, compressd, radiatim dense Jlexu- o-w-liratd, medio gibbosd, umbonibus prominentibus ; virescente-olivaced, nigricante oh^cure fasciatd. The grooved Modiola. Shell elongated, anteriorly fan-shaped, slightly angled and compressed at the 1858. MODIOLA.— Plate X. margin, radiately densely flexuously ridged, gibbous in the middle, uuiboes prominent ; greenish-olive, obscurely dark-banded. Lamakck, Anim. sans vert, vol.ix. An elougately fan-shaped shell, agreeably coloured with a livid-olive hue tinged with shining chestimt, the whole surface being flexuously ridged. Species 62. (Fig. 75, Mus. Cuming.) MouioLA FoRTUNEi. Mod. testa panuld, ovato-oblongd, sabtngond, utrinque obtuse carinald, concentrice ru- (joso-striatd ; superne violaeed, inferne albidd, epider- mids virente indutd. FortUiNe's Modiola. Shell rather small, ovately oblong, somewhat triangular, obtusely keeled on both sides, concentrically roughly striated ; violet at the upper part, whitish below, covered with a greenish epi- dermis. Volsella Fortiinei, Dunker, Pro. Zool. Soc. 185(5, p. 361. Hab. China Sea ; Fortune. Of neat symmetrical form, richly coloured on the upper part, pale at the lower. Species 63. (Fig. 76, Mus. Cuming.) Modiola phaseolina. Mod. testa pyrifonrii-ovatd, tu- midiusculd, corned, concentrice striata, epidermide sub- spinosd indutd. The pease Modiola. Shell pyriformly ovate, rather swoUen, horny, concentrically striated, covered with a somewhat spinous epidermis. Philippi, Enum. Mol. Sicil. vol. ii, p. 51. f li. Hab. West coast of Scotland ; M'Andrew. A spinously beaded homy shell, originally observed by Philippi in Sicily in a fossil state, and lately found living on the north-east and west coasts of Scotland. Species 6i. (Fig. 77, Mus. Cuming.) Modiola flavida. Mod. testa oblongd, tenui, injlatd, Utiek concentricis tenuibus elecatis sculptd; Jlavidd, lined ab umbonibus ad basin oblique decurrente colore pallidiore signatd ; umbonibus tmnidis, margine ven- trali postice sinuatd. The yellowish Modiola. Shell oblong, thin, inflated, sculptured with fine raised concentric lines ; yellow- ish, with a line running down obliquely from the uniboes to the base marked with a paler colour ; umboes swollen, ventral margin posteriorly sinuated. yotsellajlavida, Dunker, Pro. Zool. Soc. 1856, p. 364. Ilai. Bay of Manila ; Cuming. A light inflated shell of yellowish-chestnut colour, deli- cately sculptured with raised concentric lines. UoJioln.FlJl. M 0 D I 0 L A Species 65. (Fig. 78 and 80, Mus. Cuming.) MoDiOLA CICERCULA. Mod. testa oblique orbiculari, convexd, umbonibus parvis, decusmtivi striata, striis radiantibiis subdivaricatis ; albidd, luteo-fmcescente tinctd. The chick-pea Modiola. Shell obliquely orbicular, convex, umboes small, decussately striated, radiating strias rather divaricate ; whitish, tinged with yellow- ish-brown. MoLi/ER, Fauna Grocnlandica. Mytilus decussatus, Montagu. Crenella elliptica. Brown. llab, Greenland ; Moller. Orkney ; M'Andrew. A small pca-likc shell, with very much the aspect of a little Cardium. Species 66. (Fig. 79, Mus. Cuming.) Modiola kiiombba. Mod. tes/d oblique quadratd, aiitice tatiore, subproductd, medio valde gibbosd, obtuse a/t- gulatd, unJique radiatim l/tnuistriatd ; rosacco-albd, subpellucidd. The rhomboid Modiola. Shell obliquely quadrate, anteriorly broader and somewhat produced, very gib- bous in the middle, obtusely angled, everywhere rayed with fine stria;; piukish-white, slightly trans- parent. Berkeley, Zool. Journ. vol. iii. ]). 329. Supp. pi. 18. f. I. Bab. Tunis ; M'Andrew. A rather solid, gibbous, rhomboid shell, of a pinkish hue. Species 67. (Fig. 81, Mus. Cuming.) Modiola marmobata. Mod. testa oblique rhomboided, valde gibbosd, obtuse angulatd, postice et antice radi- atim liratd et sulcata, medio Icemgatd ; viresccHle-ci- nered, rosaceo tinctd. The marbled Modiola. Shell obliquely rhomboid, very gibbous, obtusely angled, rayed posteriorly and anteriorly with grooves and ridges, smooth in the middle ; greenish-ash, tinged with rose. Forbes, Malacol. Monens. p. 40. Modiola tumida, Hanley. Modiola PoUana, Philippi. Crenella marmorata, Forbes and Ilanley. Ilab. Britain. An interesting small species, of the characteristic Lanis- tina group. Species 69. (Fig. 82, Mus. Cuming.) Modiola glandula. Mod. testa suboblique orbiculari, convexd, umbonibus parvis, decussatim striata, striis l-ongitudinalibus fortioribus, subdivaricatis; sordidi alba, epidermide luted induld. The acorn Modiola. Shell somewhat obliquely orbi- cular, convex, umboes small, decussately striated, longitudinal striae the stronger, rather divaricate ; dull white, covered with a yellow epidermis. Totten, Silliman's American Journal of Science, vol. xsvi. p. 367. f. 3. A Corrfi«»«-shaped species, of the same typical form as M. cicercula. Fig. S3. (Mus. Cuming.) A young specimen of M. strigata, Hanley, described at PI. VII. Fig. 33. Species 69. (Fig. 84, Mus. Cuming.) Modiola peotinula. Mod. tesld obovatd, ventricosd, antice laiiore, radiatim costatd, umbonibus subpromi- iiulis ; luteo-fuscescente. The little pecten Modiola. Shell obovate, ventri- cose, broader anteriorly, radiately ribbed, umboes ra- ther prominent; yellowish-brown. Gould, Invertebrata of Massachusetts, p. 127. f. 85. Mab. St. George's Bank, Bay of Massachusetts, United States. Of a rather solid obovate Carditim-Uke form. Species 70. (Fig. 85, Mus. Cuming.) Modiola bulla. Mod. testa oblique globosd, viireo-albd, lavigaid, sub lente minutissiiiie radiatirn striata, gib- iosissimd, umbonibus parvis, ineurvis. The bubble Modiola. Shell obliquely globose, glassy- white, smooth, beneath the lens very minutely ra- , 1S5S. MODIOLA.— Plate XI. diately striated, very gibbous, umboes small, in- curved. Crmiella bulla, Dunker, Pro. Zool. Soc. ]856, p. 366. Hai. Island of Luzon, Philippines ; Cuming. A delicate bubble-like glassy shell, of a very gibbous Isocardia-like form. Species 71. (Fig. 80, Mus. Cuming.) MoDioLA FABA. Mod. testd obovaid, oblique compressd, radiaUtn tenuicostatd ; Uvido-pnrpurascenie, epider- mide corned niiente-ca-staiied hidutd. The bean Modiola. Shell obovate, obliquely com- pressed, radiately finely ribbed ; livid-purple, covered with a shining chestnut horny epidermis. Mytilus faba, Fabricius, Gmelin, Syst. Nat. p. 3359. Modiola ardica. Leach. Hab. Greenland. Partaking very much of the character of Dr. Gould's M. pectimda, but uniformly smaller and more with a dark, shining, horny epidermis. Fig. 87. (Mus. Cuming.) The shell here figured proves to be a young transparent example of M. marmorata, Forbes, represented above ai Fig. SI. MOD 10 LA. albicosta, Lamarck II. arata, Bunker IV. arcuatula, Hanley VI. arboresccns {Myiilus), Clieranitz VI. Auslralis, Grai/ V. barbata, Lamarck III. Brasiliensis, Chemnitz IV. bulla {Crenella), Dunker XI. capax, Conrad III. cicercula, MiJller XI. costulata, Risso X. Cumingiana, Bunker IX. discors (Myiilus), Linn IX. elegans, Oray V. elongata, Swainson II. emarginatus, Benson X. faba {Myiilus), Fabricius XI. flavida (Folsella), Dunker X. Fortune! (Vohella), Dunker . . X. glaberrima (Folsella), Dunker. . VIII. glaudula, Tollen XI. gubernaculuni (VoMla), Dunker VII. Gnyanensls, Laniarck IV. im]Kicta, Ihrman IX. inconstans, Dunker V. Japonica (Volsello), Dunker VI. laevigata (Lanislina), Gra_v ... IX. lignea, Reeve X. Magellanica (Folsella), Dunker . VIII. marmorata, Tories XI. Metealfei, Hanley IV. modiolus (Mytilus), Linn I. modiolus, Turton 1. nana (Lanislina), Dunker ... X. nexa, Gould . IX. nigra (Lanislina), Gray ..... IX. nitens, CarpenU-r V. nitida, Hanley II. opifex, Say VIII. Papuana, Lamarck I. pectinula, Gould XI. perfragilis (Folsella), Dunker. . VIII. Pctagnaj, Scacchi VIII. phaseolina, Philippi X. Philippinarum, Hanley I. picta, Lamarck . VI. picla, Dunker VIII. plicata (Mytilus), Gmelin . . VI. plicatula, Lamarck III. Poliana, Philippi XL recta, Conrad VII. rhombea, Berkeley XL rhomboidea, Llanley VI. semifusca, Sowerby IV. Senhausii, Reeve V. setigera (Folsella), Dunker ... V. speciosa (FoUella), Dunker. . . VII. splendens (Mytilus), Dunker . . VII. Striatula, Hanley X. strigata (Myiilus), llanley .... VII. subpurpurea (Folsella), Dunker. VIII. subramo.sa, Hanley . . VIII. subsulcata (Folsella), Dunker . . VIII. subtorta (Modiolarca), Dunker. . X. sulcata, Lamarck X. Traillii, Reeve IV. tristis (Folsella), Dunker VII. tulipa, Lamarck IV. tumida, Hanley XL undulata (Folsella), Dunker . V. vagina, Lamarck I. varicosa, Gould VI. vexilluni, Reeoe VIII. vulgaris, Fleming I. MONOGRAPH OF THE GENUS LITHODOMUS " Farewell, farewell ! but this I tell To thee, thou Wedding-Guest : He prayeth well, who loveth well Both mau, aud bird, and beast." The Ancient Marin lithodomus, PL J- Sowerby (M etUth VinceTit Bi'odks Imp L I T 11 0 D 0 M U S Genus LITHODOMUS, Cuvier. Testa transversa, ctfUndraceo-oblonga, cequivalvis, epidermide rufo-castaned induta, calce interdum incrustata ; extre- mitatibus rotundatis ; latere postico hrevissimo ; umbo- nibus parvis, incurvis. Cardo linearis, llgamento mar- gimli. Impressio muscularis eomposita, indislincta. Shell transverse, cylindrieally oblong, equivalve, covered with a reddish-chestnut epidermis, sometimes in- crusted with chalk ; extremities rounded ; posterior side very short ; umbocs small, incurved. Tliiige li- near, with the ligament marginal. Muscular impres- sion compound, indistinct. This very interesting genus, founded by Cuvier, is not alone distinguished from Modiola by the boring habits of its animal. The shell is always of a peculiarly oblong- cylindrical or wedge-shaped form, and of a peculiar sub- stance. It is found imbedded in stone, chalk, coral, and in the valves of Spoiidgliis shells, though often extremely delicate in structure. There is scarcely any species whicli is not beautifully striated, and there are several curiously sculptm-ed with feathery wrinkles or furrows. Another peculiarity consists in the shell being frequently thickly incrusted with a deposit of chalky matter, which is some- times sculptured, and in some few instances produced be- yond the extremity. Among the small species, a few arc bearded with bristles. The geographical range of this genus is partial, but widely distributed. There are more species perhaps in the West Indies than in any other locality, but the genus is known to inhabit the Philippine Islands, New Zea- land, Cliili, the Galapagos Islands, and Mazatlan. Species 1. (Mus. Cuming.) LiTHODOMDS CORRUGATUS. Lithod. testd subcylliidraced, Jlavidd, per totam superfickm striis arcuatis postice di- varicatis corrugatd, extremitate anticd angustd, posticu dilatatd, margine dorsali medio elevato, subangulalo. The wrinkled Lithodomus. Shell somewhat cylin- drical, yellowish, wrinkled over the entire surface with posteriorly divaricated arched striffi, anterior ex- tremity narrow, posterior dilated, dorsal margin raised in the middle, slightly angled. Modiola cornigata, Philippi, Abbikl. und Besch. Concli. voi.ii. p. 147. pi. 1. f. 1- Ila^. Island of St. Vincent, West Indies. A yello^visli sliell, rather depressed, with the surface diagonally crossed throughout with waved wrinkles. Species 3. (Mus. Cuming.) Lithodomus Malayanus. Lithod. testa subtereli, cas- taned, striis perpend icularib us exaratd, area dorsali leevigatii, margine sublrigono-producto, umbonibus in- volutis, parte anticd rn-anifeste angnstiore. The Malay Lithodomus. Shell somewhat slender, chestnut, furrowed with perpendicular strise, dorsal area smooth, margin rather angularly produced, umboes involute, anterior portion of the shell mani- festly nan'owed. Modiola Malayana, Philippi, Abbild. und Besch. Conch, vol. iii. p. 21. pi. 2. f. 6. Hub. Malay. A short dark-chcstuut shell, grooved perpendicularly over one-half of its surface, the dorsal margin being rather angularly produced in the middle. Species 3. (Mus. Cuming.) LiTHODO.MUS TRUNCATUS. Lithod. testd oblo7igd, ab um- bonibus obtuse angulatd, antice attenuatd, postice tii- midd, angulato-truncatd, medio subcontractd ; nigri- cante-castaned, concentrice rude striata. The TRUNCATED Lithodomus. Shell oblong, obtusely angled from the umboes, attenuated anteriorly, pos- teriorly swollen and angularly truncated, a little con- tracted in the middle ; dark chestnut, concentrically rudely striated. Gray, Appendix to Dieffenbach's 'New Zealand.' Peculiarly distinguished from all other species of the genus by its truncated and angularly contracted form. Species 4. (Mus. Cuming.) Lithodomus gracilis. Lithod. testd elongato-a/lindra- ced, rufo-castaned, in parte anticd striis perpendicula- ribus exaratd, extremitate posticd sensim attenuatd, unticam aquante, margine dorsali convexiusculo, haud ungulato. The slender Lithodomus. Shell elongately cylindri- cal, reddish-chestnut, furrowed on the anterior por- tion with perpendicular striae, posterior extremity LITHODOMUS.— Plate 1. gradually attenuated, equal in the anterior, dorsal margin rather convex, not angled. Modiola gracilis, Philippi, Zeitschrift fur Malac. 1847; Abbildungen, pi. 2. f. 1. Hab. China. This fine species, the largest of the genus, is of a rich dark chestnut colour, with the furrowed sculpture of the anterior surface somewhat delicately indicated. Species 5. (Fig. a, b, Mus. Cuming.) LiTHODOMUS CINNAMOMINUS. LHhod. Ustd cj/Undraceo cuneiformi, tumidd, sviarcuatd, undiqiie minuiissimi decmsatim striata, cmtaned aid Jlavescenle-castatied, niiente, quasi sericea, extremitate anticd abrupte Irun caid, umionHms nilide involutis, posited subcompressd. The cinnamon Lithodomus. Shell cylindrically wedge shaped, swollen, rather arched, everywhere very mi nutely decussately striated, chestnut or yellowish chestnut, shining as though silky, anterior extremity abruptly truncated, vvith the umboes neatly involuted, posterior extremity rather compressed. Mytilus ciriiiayiiominus, Chemnitz, Conch. Cab. vol. viii. p. 352. pi. 82. f. 731. A/i/titm cmriamomem, Bruguiere. Modiola cinnumonuia, Lamarck. Hau. Philippine Islands, and Island of St. Thomas, West Indies. This species is peculiarly distinguished by its swollen, wedge-shaped, ModiolaASkt form, and shining, silky ap- pearance. Species 6. (Mus. Cuming.) Lithodomus obesus. Llthod. testa oblongd, medio obesd, utrinque fere cequaliter rotundatd,Jlavescente; Itevi anl concentrice striatd, margine ventraii arcuato, dorsali declivi-angulato, angulo fere obsoleto, extremitate un- tied stibattmuatd, umbonibus indistinctis. The stout Lithodomus. Shell oblong, stout in the middle, almost equally rounded at both ends, yel- lowish, smooth or concentrically striated, ventral margin arched, dorsal slopingly angled, with the angle nearly obsolete, anterior extremity rather attenuated, umboes distinct. Modiola obesa, Philippi, Zeitschrift fiir Malac. 1847 ; Ab- bildungen, pi. 2. f. 2. Hab. China. Well distinguished by its stout, nii>;iilni- form, and ab- sence of furrowed sculpture. littwclomus, Tl. II. Sowaiy daefclith. ■ViiiCeTit 3rooks Imp LITHODOMUS. Species 7. (Mus. Cuming.) LiTHODOMUS Antillarum. Litkod. testa cylindraccii, gracili, intense castaned, in parte posticd striis per- pendicular ibus fere omnino exaratd, extremitate anticd posticam eeguante, margine ventrali fere rectilineo in extremitate posticd ascend r A V I C U L A. Species -i. (5Ius. Cuming.) AvicULA FLEXUOSA. Avic. testa iubquadratd, tenuiculd, compressa, suhdistorti, valde incsquilaterali, superni recta, postice vix alatd, longitudinaliter Jiexuose squa- matd, sqiianm partis, plants, cmpidatis, hie illic ohso- letis, ref/ulariter descen-denlibm. The flexuous Avicula. Shell somewhat square, rather thin, compressed, somewhat distorted, very inequi- lateral, straight at the upper part, scarcely winged posteriorly, longitudinally flexuously scaled, scales small, flat, cuspid, here and there obsolete, descend- ing regularly. Hal>. Cape Hillsborough, North Australia ; Jukes. A shell of somewhat square growth, having rather a distorted appearance, sculptured with small cuspid scales descending in comparatively distant flexuous rays. Species 5. (Mus. Cuming.) .\viuuLA LATA. Avic. testa transverse oblongo-quadratd, suddistortd, valde inaquilaterali, postice parum alatd, late sinuatd, concentrice dense filo-striatd, intense rufo- CMtaned, squamulis minutis, irregulariter curcatis, versus marginem concentrice indutd. The broad Avicula. Shell transversely oblong-square, rather distorted, very inequilateral, but little winged posteriorly, broadly sinuated, concentrically densely thread-striated, dark reddish-chestnut, covered to- wards the margin with close-set irregularly festooned minute scales. Gray, MS., Brit. Mus. Hab. Port Essington and Raines' Island, Torres Straits, Australia ; Lieutenant luce. An extremely characteristic species, of a peculiar red- dish-chestnut colour, sculptured throughout with close-set thread-like concentric strife of growth, and covered to- wards the margin with minute irregularly festooned scales, which have the appearance of a dense pile. Species G. (Mus. Cuming.) Avicula Cumingii. Avic. testa orbiculari, piano-con- vexd, superne recta, postice vix sinuatd, iibique concen- trice et longitudinaliter sqiiamatd, squavm longitudi- 7ialibtts crispato-spathulatis, valde promiscuis, intense virescente-olivaced, pallide radiatd. Cuming's Avicula. Shell orbicular, flatly convex, straight at the upper part, scarcely sinuated poste- riorly, everywhere concentrically and longitudinally scaled, longitudinal scales crispately spathulate, very promiscuous, dark greenish-olive, faintly rayed. Uab. Lord Hood's Island, Pacific Ocean (attached to rocks, at the depth of ten fathoms) ; Cuming. This fine species is quite remarkable for the dense forest of scales with which it is sculptured throughout, the scales being of an irregular crispately spathulate growth, deve- loped in the most fantastic and promiscuous manner. March, 1857. Aviaf/u. M. \. '% A V I C U L A. Plate V. Species 7. (Fig. 7 and n, Mus. Cuming.) AvicuLA FLABELLUM. Avic. tesid oblique siiborbiculari, postice late subsinuatd, pellucido-corned, sqmmis lan- ceolatis fragiliss'mis concentrice longitudinaliter ra- diatd, pallide olivaced, piirpHreo-nigricante irregula- ritiir radiaUm tinctd. The fan Avicula. Shell obliquely suborbicular, slightly broadly sinuated posteriorly, transparent horny, con- centrically and longitudinally rayed with extremely fragile spear-like scales, pale olive, irregularly radi- ately smeared with purple-black. Hub. Venezuela. The characteristic sculpture of this species, which is of a comparatively fragile horny texture, consists of a mass of more fragile lanceolate scales, arranged for the most part with tolerable regularity. The shell is more or less radiately smeared with purple-black. Species 9. (Mus. Cuming.) Avicula barbata. Avic. testa orbiculari, supeme redd, plano-convexd, olivaceo-Jlamcante, concentrice lami- natd, versus marginem dense squamatis, squamis plano- coclilemiformibus, regulariter seqnentibtis. The bearded Avicula. Shell orbicular, straight at the upper part, flatly convex, olive-yellow, concentrically laminated, densely scaled towards the margin, scales Hatly spoon-shaped, following regularly. Hab. Panama (under stones at low water) ; Cuming. Distinguished from A. Cumingii by the regular sequence of the scales, which, so far as we have observed, are only developed near the margin, and by its yellower tone of colour. The species is also fi-om a different locality, and possesses a distinct uniformity of character throughout. March, 1857. jAinila, PI. II. ^ A V I C U L A. Plate VI. Species 10. (Mus. Cuming.) AvicDLA ALA-PEKDlcis. Avic. testd subquadrato-orbl- culari, oblique convexd, superne redd, postice anffulaio- sinuaid, semipellucido-corned, purpureo-nifescmte ra- diatd, undique dense sqimmatd, squamis trigono-lanceo- latis, fragilibus, peculia?iter marmoratd. The paetridge-winq Avicula. Shell somewhat squarely orbicular, obliquely convex, straight at the top, pos- teriorly angularly siuuated, semitransparent, horny, rayed with purple-red, densely scaled throughout, scales triangularly lanceolate, fragile, peculiarly mot- tled. Hab. West Indies. Of this horny species, delicately rayed with purple-red, the scales are prominently festooned in their made of de- velopment, whilst in substance and appearance they are fragile and peculiarly mottled. Species 11. (Mus. Cuming.) Avicula imbricata. Avic. testa subquadratd, planius- culd, postice angulato-prodnctd, parum simiatd, oU- vaceo-flavicante, undique dense imbricato-squamatd, squamis cuspidatis, appressis, regularibus. The imbricated Avicula. Shell somewhat square, rather flat, posteriorly angularly produced, but little sinuated, olive-yellow, everywhere densely imbri- cately scaled, scales cuspid, appressed, regidar. Hab. Philippine Islands ; Cuming. The scales of this species arc very numerous, flatly ap- pressed, pointed, and of unusually regular growth. Species 12. (Mus. Cuming.) Avicula mubicata. Avic. testd suboblique quadratd, solidiusculd, leviter convexd, postice arcuato-sinuatd, flavicante, marmorato-nigro interrupte strigatd, versus marginem dense squamatd, squamis angulato-lanceo- latis, regularibus. The prickly Avicula. Shell somewhat obliquely square, rather solid, slightly convex, posteriorly arcuately siuuated, pale yellow, inteiTuptedly streaked with mottled black, densely scaled towards the margin, scales angularly lanceolate, regular. Hab. Philippine Islands. The colouring of this species is characteristic, the sur- face being of a yellowish cast, interruptedly rayed with marbled-black, and the scales are prominently pointed. Species 13. (Mus. Cuming.) Avicula lentiginosa. Avic. testd subquadratd, postice late brevi-alatd, parum sinuatd, planiusculd, spadiceo- fuscescente, alho radiatim lentiginosa, irregnlariter laminato-squamatd, squamis simplicibus, Jdc illic ob.su- iHis. The freckled Avicula. Shell somewhat square, pos- teriorly broadly short-winged, but little sinuated, rather flat, fawn-brown, radiately freckled with white, irregularly laniinately scaled, scales simple, here and there obsolete. Hab. Moluccas. In this species the scales are only obscurely developed with the iiTegular lamina; of growth. The colour of the shell is a pale fawn-brown, distinguished by a character- istic pattern of mottled-white rays. March, 1857. Avimla, PI. W. Miwaiiy rlel ttMi "Vincent. Brooks Imp AVICULA. Plate VII. Fig. 14. (Mus. Cuming.) I Fig. 16. (Mus. Cuming.) The shell here figured is intended to represent luwther j A variety qI A.fiahdlmn, represented at PI. V. Fig. 7, state of the curiously mottled species A. ala-perdick, de- j which it is necessary to give in illustration of its exquisite ribed at Fig. 10 in the preceding Plate. Species 15. (Mus. Cuming.) -IvicULA PR.'ETEXTA. Aeic. testd mihqtmdratd, postice late siimatd, lavigald, livido-spadiced, aiaculis pallidis radiatd, maculis Uneis opaco-albis corrugatis. The laced Avicula. Shell somewhat square, poste- riorly broadly sinuatcd, smooth, livid-fawn, rayed with pale blotches, blotches wrinkled with opake- white lines. Hab. Island of Corrigidor, Philippines ; Cuming. Of a peculiar livid-fawu colour, rayed with pale oblong blotches, which are curiously wrinkled across with opake- white lines. variety of sculpture. Species 17. (Mus. Cuming.) Avicula teghlata. Avic. tedd mhqnadraid, poalice late alatd, plana, tenui, suhcorned, spadiced, rufo-tinctd, vel liiteo-virescente, allio radiatd, squamatd, squamis tmuibus, planatis, subelonffatis, distantibus. The tuatched Avicdla. Shell somewhat square, pos- teriorly broadly winged, flat, thin, sub-horny, fawn, tinged with red or yellowish-green, rayed with white, scaled, scales thin, flattened, rather elongated and distant. Eab. Moreton Bay, Australia. A thin broadly winged species, scarcely sinuated, of rather horny substance, of a reddish or yellowish-green hue, faintly white-rayed, armed in the rays with rather distant, prolonged, thin, flattened scales. March, 1857 Avimla^FLYm. iliy id etliih VmceBt Jruoks Imp A V I C U L A. Species 18. (Mus. Cuming.) AvicULA HYSTiiix. Avic. testa suhglobosd, ienui, corned, virescente, paUide radiald, spinis vitt(eformibus eloii- gatis, promiscue curvatis, e Imninibus tennibus projectis, induid. The porcupine Avicula. Shell subglobose, thin, horny, green, faintly rayed, covered with long ribbon-like spines, promiscuously curved, projected from fine laminae. Hab. ? This little species of thin globular form is distinguished from all other species of the genus by its long promiscu- ously curved ribbon-like spines. Species 19. (Mus. Cuming.) AvicuLA RUTILA. Acic. testa ohlique siibqiiadratd, tenui, IcBvigatd, pellncidd, aneo-rufescente. The ruddy Avicula. Shell obliquely subquadrate, thin, smooth, transparent, coppery -red. Hab. .-Vustralia ; Strange. Of very simple structure, being of a thin transparent coppery-red substance, somewhat rudely developed, with out any indication of scales or over-lapping laminae. Species ii. (Mus. Cuming.) Avicula pulchella. Avic. testa peroblique ovatd, su- perne awjmtiore, convexiusculd, teniiissmd, pellueido- corned, Jiamniid'is rufis angustis radiatd,m.aculis nigris linels stibtilibits opaco-albis commistis. The pretty Avicula. Shell very obliquely ovate, nar- rower at the upper part, rather convex, very thin, transparent horny, rayed with narrow red flames, in- termixed with black blotches and fine opake-white lines. Hub. riiilipplnc Islands ; Cuming. An exceedingly transparent shell, curiously painted with interrupted rays of black spots, narrow red flames and fine opake-vvhile lines. The shell is of very oblique growth, and broader at the base than at the upper part. Species 20. (Mus. Cuming.) Avicula perviuidis. Avic. testd oblique ovatd, convexi- usculd, superne late alatd, corned, perviridi, paUide radiatd, squamis paucis eximiis mucronatis prope margvnem. The green Avicula. Shell obliquely ovate, rather con- vex, broadly winged at the upper part, horny, bright green, faintly rayed, with a few delicate pointed scales near the margin. llab. Australia ; Strange. Of an unusually bright-green horny substance, faintly rayed, with a few flattened pointed scales in the rays near the margin. Fig. 21. (Mus. Cuming.) The young state of the large Avicula margaritifcra, de- scribed and figured at PI. I. Species 23. (Mus. Cuming.) Avicula radula. Avic. testa subquadratd, planiusculd, irregulari, circa iimbones lavigatd, deinde squamulis acvdis fimbriatis appressis armatd, albd, luteo-tinctd. The rasp Avicula. Shell somewhat square, rather ap- pressed, irregular, smooth around the umboes, then armed with flat pointed frilled scales, white, tinged with yellow. Hab. '■: A yellow-stained opake-white shell, of rude irregular growth, beset with appressed sharp-pointed frilled scales. Species 24. (Mus. Cuming.) Avicula occa. Avic. testd oblique ovatd, convexiusculd, preesertim valm dextrd, corned, solidimculd, olivaced, nigra interrupte radiald, conspicue squamatd, squamis planis, crispatis, mannoratis. The harrow Avicula. Shell obliquely ovate, rather convex, especially the right valve, horny, rather solid, olive, rayed with interrupted black, conspicuously scaled, scales flat, crisp, mottled. Uab. lied Sea. Allied to A. ala-perdicis, from which it differs chiefly in the scales being larger and more regularly festooned. March, 1857. AMnda,T7.II. Tbj M.etlttli . "^finoetii !BioQkB Imp . AVICULA. Plate IX. Species 25. (Mus. Cuming.) AvicuLA FIMBRIATA. Avic. te.stu, subqiiodrato-ovatd, su- perne lata, tcnui, planiusculd, Ifevigatd, irreyulari, squamis laminaribus versus marginem late fimbriatd, pallide spadked. I'he fuebelowed Avicola. Shell somewhat squarely ovate, broad at the upper part, thin, rather flat, smooth, irregular, broadly furbelowcd towards the margin with laminar scales, pale ftiwn-eolour. Hab. North-west coast of Australia (uuder pieces of coral at low water) ; J. E. Dring. Of rather sliglit irregular structure, thin and flat, orna- mented towards the margin with conspicuous rows of brnadlv frilled lamina?. Species 26. (Mus. Cuming.) Avict'LA Anomioides. Avic. testa siibcirculari, siib-Pec- tiniformi, tenui, lavigald, pelliicido-albd, vircsceide pallide radiatd, ad marginem obsolete rugoso-laminatd. The Anomia-like Avicula. Shell nearly circular, some- what Pecten-shaped, thin, smooth, transparent-white, faintly rayed with pale green, obsoletely roughly la- minated at the margin. Uab. ? A very characteristic species, of semitransparent white Anomia-like substance, rayed with pale green in a manner very unusual in this genus, the edge being rudely jagged with short broken laniiiiffi. Species 27. (Mus. Cuming.) ICULA SIGILLATA. Avic. iestd subquadrato-ovtttd, irre- gulari, lavigatd, pelliwido-albd, purpureo-nigricante circa umbones tinctd et radiatd, fasciis opaco-albis prope marginem radiatd, ddnde laminis planis fim- briatd. The bruised Avicula. Shell somewhat squarely ovate, irregular, smooth, transparent-white, rayed and stained about the umboes with purple-black, rayed near the margin with opake-white bands, then frilled with flat laminse. Hab. Cape Hillsborough, North Australia ; Jukes. This shell is of the same transparent white Anomia-Hke substance as the preceding species, but differs materially in form, and is more or less stained with purple-black. Near the margin it is curiously marked with opake-white radiating bands, and at the edge is broadly flatly frilled. Species 28. (Mus. Cuming.) Avicula cetua. Avic. te.'itd subqitadratd, siipeme latis- simd, Icevigatd, sordide spadiced, irregulariter obsolete laminatd, versus marginem dense radiatim squamatd, sqitamis minutis, plants, cuspidatis, subdistantibus, pe- cidiariter marmoratis. The shield Avicdla. Shell somewhat square, very broad at the upper part, smooth, dirty fawn-colour, irregularly obsoletely laminated, towards the margin densely radiatcly scaled, scales minute, flat, cuspid, rather distant, peculiarly mottled. Eab. ? The chief characteristic of this thin broadly square spe- cies is its sculpture of minute flat cuspid mottled scales, arranged in regular radiating rows. March, 18.5 7. J?i3^:^S3ri» AHnda , Tl. X. Wii # uowerty iM stM" l/incenL Bioo^ imp. A V I C U L A Plate X. Species 29. (Fi-. 29 and 31, Miis. Cuming.) AviCDLA LACCNATA. Mic. kst/i mbquadrato-ovatd, cou- vexittsciild, tenui, lutescente-corned, compicue dense laminatd, laminis in spinis lacunatis Jimbriatis pro- jects. The guttered Avicula. Siicll somewhat squarely ovate, rather convex, thin, yellowish-horny, conspicuously densely laminated, the laminae projecting into fes- tooned guttered spines. Hah. Australia. Tlie surface of this species is remarkable for its very elaborate system of horny lamina;, projected into fes- tooned guttered spines. Species 30. (Mus. Cuming.) Avicula irrasa. Avk. testa suicircular/., temnculd, corned, concentrice lamlnato-striatd, deinde sjiiamis angustis plants dense regulariter obsitd, pallide spa- diceo-rufd. The unshorn Avicula. Shell nearly circular, rather thin, horny, concentrically laminately striated, then densely regularly beset with flat narrow scales, light fawu-red. JM. ? A light nearly circular species, of a delicate fawn-red colour, thickly rayed with close-set flattened narrow scales. Species 33. (Mus. Cuming.) Avicula .-erata. Jvic. testa subquadratd, tenuicidn, coHvexd, prasertim valvd dextrd, postice subsinmld, areo-lutescente, obsolete tenuilamimtd, squamis tmui- bus nunwrosis parvis plants marmoratis obsitd. The bronze Avicula. Shell somewhat square, rather thin, conve.x, especially the right valve, posteriorly slightly siuuated, bronze - yellow, obsoletely finely laminated, beset with numerous small thin Hat mot- tled scales. Ilab. Australia. Chiefly distinguished by its yellowish-bronze hue, thin in substance, and regularly beset with small flat mottled scales. Sjiecies 33. (Fig. 33 and 31, Mus. Cuming.) Avicula NEBULOSA. Jvic. testa oblique quadratd, coii- vexiusculd, prasertim valvd dextrd, soUdiuseuld, postice subsinuatd, intus vivide margaritaced, extus rugosd, muticd, sordide alba, nigro profuse uebulosd. The clouded Avicula. Shell obliquely square, rather convex, especially the right valve, rather solid, pos- teriorly slightly sinuated, richly pearly in the interior, externally rough, without sculpture, dull white, pro- fusely clouded with black. Conrad, Journ. Acad. Nat. Soc. Philadelphia, vol. vii. Hab. Sandwich Islands. A rather solid black clouded species, void of any ex- ternal sculpture, remarkable for the rich delicate golden hue of its internal nacre. Species 35. (Mus. Cuming.) Avicula irradians. Avic. testa sub-Pectiuiformi, irre- gulari, planiusculd, lavigatd vel obsolete laminatd circa umbones, deinde rude squamatis, squamis cris- patis, valde irregularibus ; albidd, rufo-radiatd. The R.4.YED Avicula. Shell somewhat Pecten-shaped, irregidar, rather flat, smooth or obsoletely laminated around the umboes, then rudely scaled, scales crisp, very irregular; whitish, rayed with red. Hab. Australia. An irregularly formed species, of a characteristic manner with red. itish hue, rayed in March, IS 57. Arinrla, Fl. XT. ^W SowBily (Ul et.lit1) '^ Vincent. BTortr. Irap AVICULA. Plate XL Species 36. (Mus. Cuming.) AvicuL.\ ZEBK.4. jivic. testa perobli que trapezoidea, sii- penii lata, recta, posfice vix simiala, medio elonyato- convexa, Ifemgatd, peUiicido-cornett, llneis nigricante- fiims didaidibM promiscne vmjaid. The zebra Avicula. Shell very obliquely trapezoid, broad and straight at the uj)per part, posteriorly scarcely sinuated, elonpiately convex in the middle, smooth, transparent horny, promiscuously striped with distant black-brown lines. Ihih. Jloreton Bay, Australia. This little Avicula, of which three specimens are exhi- bited in the accompanying figure, attached by their byssus to a bunch of Sertnlari/e, is of a peculiarly oblique form and bright transparent horny substance, promiscuously striped with distant black-brown lines. Species 37. (Mus. Cuming.) Avicula flammata. Avic. tenia oblique quadratd, siib- depressd, superne angustd, pellucido-corned, fiammia rvfo-fmcis fasciatim radiald. The flamed Avicula. Shell obliquely square, rather depressed, narrow at the upper part, transparent horny, rayed with bands of red-brown flames. Hah. Philippine Islands ; Cuming. A small transparent horny species, of somewhat rude oblique growth, rayed with bands of red-brown (lames, and having a delicate tortcise-shell aspect. Species 38. (Mus. Cuming.) Avicula scalpta. Avic. testa oblique quadratd, supernii angudiusculd, convexd ; pallide pellucido-corned, liiwis capillaribus opaco-albis, promincue divergentibm, ra- dial d. The scratched Avicula. Shell obliquely square, ra- ther narrow at the upper part, convex ; pale trans- parent horny, rayed with opake-white hair-lines, pro- miscuously diverging. Ilah. Australia. A rather convex shell, of a pale, horny texture, curi- ously marked with opake-white hair-lines, promiscuouslv divergi ■oft-. Species 39. (Mus. Cuming.) Avicula Pernoides. Avic. testa oblique circulari, sn- periie subanyu.std, pland, solidiusculd, rugosd, mitticd, ad marginem irregulariler crenatd ; lutescente-albd, purpureo-nigro radiald et compicue marmoratd. The Pekna-like Avicula. Shell obliquely circular, ra- ther narrow at the upper part, flat, rather solid, rough, without external sculpture, irregularly notched at the margin; yellowish-white, rayed and conspicu- ously mottled with purple-black. IM. L ? The most noticeable feature in this species is its bold, purple-black marbled painting, which is particularly con- spicuous in the marginal interior. Species 40. (Mus. Cuming.) Avicula assula. Avic. tesld aubquadrato-ovata, solidi- usculd, poslice subsinuatd, prope umbones obsolete la- minald, deinde squamis lanceolatis fragilibus fimbria- tim obsitd ; subcori/ed, purpureo-rufo radiald et mar- moratd. The slab Avicula. Shell somewhat squarely ovate, ra- ther solid, slightly sinuated posteriorly, obsoletely laminated near the umboes, then beset with festoons of fragile lanceolate scales ; somewhat homy, rayed and mottled with purple-red. Hab. West Indies. A simple stout horny sIicU, rayed and mottled with purple-red, densely beset towards the margin with festoons of fragile lanceolate scales. Species 41. (Mus. Cuming.) Avicula Chamoides. Avic. tesld subquadrato-circulari, tenni, corned, concentriee laminatd, laminis plus minus ampliter ramosis ,- olivaced, undato-nigro maculatd. The Chama-like Avicula. Shell somewhat squarely circular, thin, horny, concentrically laminated, la- miuic more or less largely branched ; olive, blotched with waved black. Hah. ? A pretty horny species, of which a cluster of four spe- cimens is represented within a valve of .'/. margaritifera, remarkable for the bold Charaa-like branching out of the eoncentric laminse. March, 1857. AruiJ^f, n.M. f^pwcjliy ild fJ. lith Vmcent. ilToiiks Imp , A V I C U L A. Species 43. (Mus. Cuming.) AviciL.^ PUNCTULATA. Jvic. tcstd ohUqw. ovatd, pos- tice subsinuatd, corned, solidiiisculd, Itsvigatd, vivide olivaceo-viridi, punctidis minutis opaco-albis radiatd. The dotted Avioula. Shell obliquely ovate, slightly sinuated posteriorly, horuy, rather stout, smooth, bright olive-gi-een, rayed with minute opake-white dots. Hah. ? A rather stout horny species, of a particularly bright olive-gi-een colour, rayed throughout with minute opake- white dots. Species 43. (Tig. a, b, Mus. Cuming.) AvicnLA ELECTKINA. Avic. testd oblotigd, plus minm prodiictd, convexiusculd, lavigatd, vlvide rufo-auran- tid, pallide radiatd, interdum punctulis opaco-albis as- persd, valvd dexfrd prope umbonem plus minus nigra maculatd. The amber Avicula. Shell obliquely oblong, more or less produced, rather convex, smooth, bright reddish- orange, faintly rayed, sometimes sprinkled with opake-white dots, right valve more or less blotched with black near the umbo. Hab. Moluccas. A species of characteristic oblique oblong growth, re- markable for its bright reddish-orange colour. 44. (Fig. a, b, Mus. Cuming.) AvicuLA ala-corvi. Jvic. testd oblique oblonfjd, plana, lingulatd, Icevigatd, irUense purpureo-nigro punctulis opaco-albis interdma aspersd, sape albd prope itmbones, purpureo-nigro maculaid. The crow's-wing Avicula. Shell obliquely oblong, flat. Ungulate, smooth, deep purple-black, sometimes sprinkled with opake-white dots, often white near the umboes, blotched with purple-black. Ala corvi, Chemnitz, Conch. Cab. vol. viii. p. 144. pi. SI. f. 727. Avicula lingulata, Deshayes. IM. Red Sea. An obliquely oblong depressed Ungulate form, of a cha- racteristic deep purjile-black colour, sometimes sprinkled with opake-white dots. Species 45. (Mus. Cuming.) Avicula smaragdina. Avic. testd elongato-oblongd, per- obliqud, irregulari, convexd, lavigatd, intend smarag- dina, valvd dextrd saturate maculatd. The emerald-green Avicula. Shell elongately ob- long, very oblique, irregular, convex, smooth, dark emerald-green, right valve darker-blotched. Hab. Moluccas? This singular species is of a peculiar narrow oblique oblong form, of a conspicuous uniform dark green colour. Species 46. (Mus. Cuming.) Avicula Malleoides. Avic. testd perobliqtu lingulatd, depresso-pland, lavigatd, irregulari, virescente-albd. The Malleus-like Avicula. Shell very obliquely Un- gulate, depressly flattened, smooth, irregular, green- ish-white. Hab. Australia. Very like a Malleus in form and want of colour, and also in being void of sculpture. AviaiU. R.m. "fe'snt Ifeocife Imj AVICULA. Plate Species 47. (Pig. «, 4, Mus. Cuming.) , AvicuLA Tarentina. Jvic. (es(d oMi//ue ovatd, postice acute alatd, Icevigatd vel obsolete costald, coticentrici I Jibroso-lamiiiatd, laminis sp'mk muricatis obsitd ; sor- I (liJe olivaced, purpitrascente-fusco radiatd. 'i'HE Tabentum Avicula. Shell obliquely ovate, pos- teriorly sharply winged, smooth or obsoletely ribbed, concentrically fibrously laminated, laminae beset with prickly spines ; dii-ty olive, rayed with purplish-brown. Mytilus hirundo, pars, Linnaeus, Syst. Nat. 12th edit. p. 1159. Avicula hirundo, Tiirton. Avicula Tarentina, Lamarck. Amcula falcata, Lamarck. Avicula aculeata, Sowerby. Avicula Anglica, Brown. Avicida Atlaidica, Brown. }lab. Mediterranean. This well-known species, which is not uncommon in the Mediterranean, occurs with rarity on our own coast. The prickly spines are projected from its fibrous epidermis. Species 48. (Mus. Cuming.) .'VvicuLA IRIDESCENS. Avic. lestd oblique trigond, con- veximcnld, postice late simiafd, striis mimlis uudu- XIIL latis undique exsculptd, versus marginem fimbriatis ; aurantio-rufd, suiiridesce/ile. The iridescent Avicula. Shell obliquely triangular, i-ather convex, posteriorly broadly sinuated, sculp- tured throughout with fine waved stria;, festooned towards the margin; orange-red, somewhat irides- cent. Hab. Moluccas. Of very oblique growth, but not materially winged, of a bright orange-red colour, having a bronze or iridescent hue. Species 49. (Mus. Cuming.) AvicDLA castanea. Avic. testa subanguste trartwersd, perobliqud, coHvexiusculd, postice subprodtcctd, minute undato-striatd, striis versus margitiem fimbriatis ; in- tense purpureo-castaned. The chestnut Avicula. Shell somewhat narrowly transverse, very oblique, rather convex, posteriorly somewhat produced, finely wave-striated, striEe fes- tooned towards the margin ; dark pui-ple-chestnut. Hab. Island of Mindoro, Phibppines ; Cuming. The form of this species is narrower transversely and more winged than the preceding species, and in colour it is of a very dark purple-chestnut. The sculptm-e is similar. March, 1857. ATiat/^i^, FLUV. Tfincent 'BroQks Imj. AVICULA. Plate XIV. Species 50. (Mus. Cuming.) .\viccLA FIBROSA, /hie. testa mbovatd, postice subpro- dueta, tenuicuUI, convexd ; castaneo-rufd, epidermide fibrosa dense fiiniriatd, quasi squamidis, indtitd. The fibeous Avicula. Shell somewhat ovate, poste- riorly rnther produced, rather thin, convex ; chestnut- vert, covered with a fibrous epidermis, elaborately fes- tooned like scales. IJab. Catanaun, Island of Luzon, Philippines ; Cuming. A species of elegant form, moderately winged, covered with a fibrous cpidermi.s, developed in scale-like festoons. Species 51. (Mus. Cuming.) AvicuLA TROCHILUS. Avic. testd elongato-trigond, ob- liqnd, comeximculd, postice acute alatd, lavigatd ; vi- vide aurantio-rttfd, supertii aureo-hitescenle. The humming-bird Avicula. Shell elongately trian- gular, oblique, rather convex, posteriorly sharply winged, smooth; bright orange-red, golden-yellow towards the upper part. llab. Philippine Islands; Cuming. This little winged species is remarkable for its bright orange-red colouring, passing towards the upper part into golden-yeUow, distinct in tone from that of A. crocea. Species 52. (Mus. Cuming.) Avicula aquatilis. Avic. testd elongato-transveisd, in- tense pnrpureo-castaned, postice conspicue alatd, aid longissimd, laid, fortiter plicato-midatd. I'he rippled Avicula. Shell elongately transverse, deep purjilc - chestnut, posteriorly conspicuously winged, wing long, broad, strongly plicately waved. Ilab. Moluccas. The wing of this little dark purple-ehestnut species is much elongated and broad in proportion to the body of the shell, and strongly rippled in relief throughout. Species 53. (Mus. Cuming.) .Avicula Peruviana. Avic. testd ovatd, convexd, sub- globosd, solidiusculd, superne latd, postice parnm si- miatd; castaned, paUide radio td, epidermide fibroad fim.bria.td indtitd. The Peruvian Avicula. Shell ovate, convex, sub-glo- bose, rather solid, broad at the upper part, but little sinuated posteriorly ; chestnut, faintly rayed, covered with a fibrous festooned epidermis. Hab. Peru. A large subglobose shell, of rather solid growth, broadly developed along the hinge-margin, and but little sinuated on the posterior side. Species 54. (Mus. Cuming.) Avicula scabriuscula. Avic. testd elongato-traniversd, peramjustd, postice oonspicite alatd ; sordide alba, snb- pellucido-corned, epidermide ptdcherrimd eximie sca- brosd indutd, ad alam undatd. The rough Avicula. Shell elongately transverse, very narrow, posteriorly conspicuously winged ; dull white, subtransparent horny, covered with a beautiful deli- cately scaled epidermis, rippled on the wing. Hab. Australia. A characteristic elongately winged species, of a j)alc sub-transparent texture, covered with a very peculiar sca- brous epidermis. Species 55. (Mus. Cuming.) Avicula producta. Avic. testd subtrigond, convexd, ob- lique elongalo-productd, pei-angustd, postice acute ala- td, pecuUariter prof unde sinnatd; vivide purpureo-cas- taned, epidermide eximie fibrosd versus marginem in- dutd. The produced Avicula. Shell somewhat triangular, convex, obliquely elongately produced, very narrow, posteriorly sharply winged, peculiarly deeply sinuated ; bright purple-chestnut, covered towards the margin with a fine fibrous epidermis. Hab. Ked Sea. This interesting species is chiefly remarkable for its pe- culiarly narrow obliquely produced form, and sharp wing. Species 56. (Mus. Cuming.) Avicula signata. Avic. testd subtrigono-quadrald, ob- lique productd, postice peratiguste elongato-alald, lati; sinuatd ; nigrieante-castaned, epidermide dense fim- briatd fibrosa indutd. The remarkable Avicula. Shell somewhat triangu- larly square, obliquely produced, posteriorly very narrowly elongately winged, broadly sinuated ; black- ish-chestnut, covered with an elaborately festooned fibrous epidermis. Hab. ? A fine typical species of this winged section of the genus, of very dark chestnut-colour, covered with a very characteristic festooned fibrous epidermis AvimJa,M.IV: Scrwerby dalscl ^fincent Brooks Iinp. A V I C U L A Species 57- (Mus. Cuming.) Aticula ckocea. Avic. testa subanguste obliqud, con- vexd, lavigatd, striis dmplicibm increnienti, aid lon- ffissimd, gracili ; vivide croceo-miniatd, fasciis casta- neis angttstis radiatd. The saffron Avicula. Shell rather narrowly oblique, convex, smooth, with simple strise of growth, wing very long and slender ; bright saffron-red, rayed with narrow chestnut bands. Chemnitz, Conch. Cab. vol. xi. pi. 205. f. 2023, 2026. Avicnla Chmensis, Leach. HaA. Island of Mindoro, Philippines ; Cuming. Conspicuously distinguished by its bright saffron-red colour and very long slender wing. Species 58. (Mus. Cuming.) Avicula marmokata. Avic. tesid oblique mbquadratd, margaritaced, epidermide tenui decidud indv.td, concen- trice striatd, purpureo-rnfo utidique midato-marmo- ratd, intemiore rvfd versus marginem, obscure pallide radiatd, aid latiusculd. The mottled Avicula. Shell obliquely somewhat square, pearly, covered with a thin deciduous epider- mis, concentrically striated, mottled throughout with waved purple-red, towards the margin darker red, obscurely light-rayed, wing rather broad. Broadly winged, of a solid pearly texture, covered with a rather thin epidermis, painted with a mottled character, which becomes more and more obsolete towards the margin. Species 59. (Mus. Cuming.) Avicula spectruji. Avic. lestd perobUqud, convexius- culd, sithnmrgaritaced, epidermide pallide spadiced, in striis concentrieis serratis iiidittd, aid suhproductd. The ghost Avicula. Shell very oblique, rather convex, somewhat pearly, covered with a light-drab epider- mis, arranged in concentric striaj, serrated at the edge, wing rather produced. Hah. Island of Mindoro, Philippines ; Cuming. Very oblique in form, and of a pale, ghastly drab- colour. Species 60. (Mus. Cuming.) Avicula porjcosa. Avic. tesid oblongo-ovatd, convexd, ; solidiusculd, lavigatd, intense ru/d, livido-purpureo I tinctd, concentrice sulcato-striatd, aid latiusculd, vix I sinuatd. The handsome Avicula. Shell oblong-ovate, convex, rather soUd, smooth, dark-red, tinged with Uvid- purple, concentrically groove-striated, wing rather broad, scarcely sinuated. ffab. ? This fine species is allied to A. Iteteroptera, but the wing is less elongated, and it differs in form. June, 1857. AvicitlcL, JPl. JTZ ■^owiaiy cfl etHth. ^feicent Broote A V I C U L A. Plate XVI. Species 61. (Mus. Cuming.) AvicuLA INQUINATA. Avic. tcstd angude obligm, con- vexiuscula, leevigatd, viride castaneo-rufo iuquinaid, epidermide liratd minute serratd versus marginem m- dtdd, aid late superjicialiter canaliculatd. The dyed Avicula. Shell narrowly oblique, rather convex, smooth, stained with bright chestnut-red, covered towards the margin with a minutely-serrated ridged epidermis, wing broadly superficially chan- nelled. Hob. Singapore. Very obliquely formed, with the wing unusually broadly superficially channelled. Species 62. (Mus. Cuming.) AviCDLA EXIMIA. Avic. testd angmte elongatd, tenui, castaneo-rufd, iridescente, epidermide minute serratd versus marginem indutd, valvd dextrd eleganter marmo- ratd et radiatd. The delicate Avicula. Shell narrowly elongated, thin, iridescent, chestnut-red, covered towards the margin with a minutely-seixated epidermis, right valve elegantly mottled and rayed. Hab. ? An extremely delicate elongately-winged shell, of a pe- culiar iridescent chestnut-colour. Species 63. (Mus. Cuming.) Avicula gregata. Avic. testd oblique rotmtdatd, cou- ve-xd, aid longissimd, gracili; pellncido-purpureo-rufd; epidermide fibrosa foliatd minute serratd indutd. The gregarious Avicula. Shell obliquely rounded, convex, with a wing very long and slender ; transpa- rent purple-red; covered with a minutely-serrated festooned fibrous epidermis. Hab. Tutudla, Samoa Islands. A transparent purple-red shell, rather rounded and con- vex, with a slender elongated wing, covered with a beauti- fully-serrated, festooned, fibrous epidermis. Species 64. (Mus. Cuming.) Avicula semi-saggita. Avic. testd oblique subquadratd, convexiiisculd, cinereo-grised vel nigricante, purpurea undatd, epidermide fibrosa minute foliatd indutd in liris confertis concentricis. The half-arrow Avicula. Shell obliquely subquad- rate, rather convex; ash-grey or blackish, purple waved, covered with a minutely-festooned fibrous e))idermis in close-set concentric ridges. Lamarck, Anira. sans vert. vol. vii. p. 98. Eab. ? This is the nearest to agree with Lamarck's definition of .-/. semi-sagitta. The identification is necessarily doubt- ful. 65. (Mus. Cuming.) Avicula argentea. Avic. testd suborbiculari, aid lata productd, solidinsculd, argenteo-grised, purpureo un- datd, pallide radiatd, epidermide via: nulla. The silvery avicula. Shell suborbicular, with a broad produced wing, rather solid, silvery-grey, rippled with purple, faintly rayed, epidermis very slight. Hab. ? Of a peculiar silvery hue, prettily rayed, witli rippled purple, having white rays passing through it. This shell has all the appearance of a distinct species, but it is entirely covered with a coating of coral. Species 67. (Mus. Cuming.) Avicula heteroptera. Avic. testd oblique orbiculari, aid longissimd, convexd, lavigatd, margaritaced, vivide rufo-caslaned, obscure anguste radiatd, valvis irujequa- libus. The dissimilarly-winged Avicula. Shell obliquely orbicular, with a very long wing, convex, smooth, pearly, blight reddish-chestnut, obscurely narrowly rayed, valves unequal. Lamarck, Anim. sans vert. vol. vii. p. 98. Avicula sterna, Gould. Hab. New Holland. There can be little doubt of this being the true La- marckian A. heteroptera. Ayimla.FI.im. % .,..:^ ^M '-t. 4A ^^1 S'TvverW del etlith "Wncent Brocks Iirrp AVICULA. Species 68. (Mus. Cuming.) AvicULA Placunoides. Jvic. testa longitudimliter Qvuld, siiperne subquadrata, tenui, semipellucidd, plana, mbconwa, lutescente-albd, fasciis angustis opaco-albis midaiis radiata, nigricante-purpureo promiscue ma- culaid. The Placuna-like Avicula. Shell longitudinally ovate, sonaewhat square at the upper part, thin, semitrans- parent, flat, rather horny, yellowish-white, rayed with narrow waved opake white bauds, promiscu- ously blotched with blackish-purple. ITab. Australia. Remarkable for its thin Flaciim-like structure, rayed irregularly with waved opake bauds, and promiscuously blotched with purple-black. Species 69. (Mus. Cuming.) Avicula libella. jivic. testa oblique orbictdari, valde convexd, aid gracili, elongatd ; lutescente-corned ; epi- dermide serratd minute foliatd indutd. The deagon-fly Avicula. Shell obliquely orbicular, very convex, with a long slender wing; yellowish- horny ; covered with an elaborately festooned serrated epidermis. Hab. China Seas. A semitransparent, horny, clongately-winged shell, most elaborately festooned with a minutely-sen-ated epidermis. Species 70. (Mus. Cuming.) Avicula vexillum. Avic. testa oblique quadratd, inar- quivalvi, pellucido-corned, tenuissimd, sirigis amplis purpureo-nfis marnioratd. The flag Avicula. Shell obliquely square, inequivalve, transparent horny, very thin, marbled with large purple-red streaks. Hab. Ceylon (in deep water) ; Gardner. A shell of very transparent substance, boldly marked with promiscuous dark stripes, destitute of any winged appendage. Species 71. (Mus. Cuming.) Avicula pica. Avic. testa trigono-ovatd, crassd, convexd, Icsvigatd, virescente-albd, radiis nigricante-purpureis irregularibus marnioratd, margine laminari, intus con- spiciie pica. The pied Avicula. Shell triangularly ovate, thick, con- vex, smooth, greeuish-white, marbled with irregular blackish-purple rays, margin laminar, conspicuously pied within. Gould, Moll. U. S. Exploring Expedition, p. 443. pi. 39. f. 599. Avicula maeulata, Gould. Hab. Pitcaim's Island. A species of solid structure, inlaid with an extremely delicate yellowish nacre, remarkable for its prolonged laminar margin being conspicuously pied. Species 72. (Mus. Cuming.) Avicula maura. Avic. testa oblique oblongd, tenui, la- vigatd, nitente-nigrd, alba sparsim vmrmoratd, epider- mide decidud minute serratd, aid subproductd. The moor Avicula. Shell obliquely oblong, thin, smooth, shining-black, sparingly marbled with white, minutely-serrated deciduous epidermis, wing rather produced. Hub. Sydney. A thin, shining, jet-black shell, with a finely serrated thick-set epidermis on the ear. Species 73. (Mus. Cuming.) Avicula cornea. Avk. testa oblique oblongd, convexius- culd, olivaceo-corned, Icevigatd, aid laiiusculd. The horny Avicula. Shell obliquely oblong, rather convex, olive, horny, smooth, wing rather broad. Ilab. Jamaica; Gosse. A plain, olive, horny shell, moderately winged, attach- ing itself to Gorgonia. Species 74. (Mus. Cuming.) Avicula fucata. Avic. testa longitudinaliter oblongd, subquadrata, convexd, tenuiculd, purpureo-rufo dense radiatd, laminis tenuibus planis concentricis nmpliter serratis obsitd. The stained Avicula. Shell longitudinally oblong, somewhat square, convex, rather thin, closely rayed with purple-red, beset with thin, largely seiTated, flat, concentric laminse. Gould, Pro. Bost. Soc. Nat. Hist. vol. iii. p. 309 ; Moll. U. S. Exploring Expedition, p. 441. pi. 39. f. 551. Hab. Japan. Chiefly distinguished by its radiating pattern of red June, 1857. Jtncula^^M.im' SiTiv-eili^r ii.et'j ~/incent Srooks Iiffp. AVICULA. Plate XVIII. Species 72. (Fig. 68, Mus. Brit.) AvicuLA viTEEA. Avic. testd oliUque curvatd, subspathu- latd, aid late smiiatd, teiiid ; pellucido-albd ; param conwxd, plano-gquamatd, sguamis fere obsohtk. The glassy avicula. Shell obliquely curved, some- what spathulate, with the win;^ broadly sinuated, thill ; transparent-white ; but little convex, flatly scaled, scales almost obsolete. Hab. West Indies. Flat and transparent, of thin PlacmiaAWt substance, obliquely spathulate, with a few scarcely-developed fes- tooned scales. Species 73. (Fig. 69, Mus. Brit.) Avicula Atlantica. Avic. testd oblique ovatd, solidi- usculd, convexd, aid sublaie simiatd, laviffatd; purpureo- fuscd, fasciis angustis pallidis rudiatd, fasciis maculis fuscis ctispid-atis vittatis. The Atlantic Avicula. Shell obliquely ovate, rather solid, convex, wing rather broadly sinuated, smooth ; jjurple-brown, rayed with light narrow bands, bands filleted with brown arrow-headed spots. Lamauck, Anira. sans vert. vol. vii. p. 98. Mytilm amcula seu Mr undo, Chemnitz. Hai. Australia; Jukes. This species has doubtless a wide range of habitation. Us most distinguishing characteristic is the rayed pattern of narrow light bands, filleted with brown arrow-headed marks. Species 74. (Fig. 70, Mus. Brit.) Avicula reticulata. Avic. testd trigono-ovatd, aid la- tiusculd ; intense purpureo-castaned ; temte concentrice striatd, epidermide minute reticulatd profe marginem indutd. The keticulated Avicula. Shell triangularly ovate, with the wing rather broad ; dark rich purple-chest- nut ; finely concentrically striated, covered near the margin with minutely reticulated epidermis. Hab. Australia. Allied to A. lata, but rather different in form, and of darker colour. The epidermis presents a most exquisite example of finely tufted network. Species 75. (Fig. 71, Mus. Brit.) Avicula Savignyi. Avic. testd oblique oblongd, trigond, aid late simiatd ; intense purpureo-nigrd, striis eleva- tis concentricis reticulatim indutd. Savigny's Avicula. Shell obliquely oblong, triangular, with the wing broadly sinuated ; dark purple-black, covered with a couceutric network of raised stria;. Deshayes, Anim. sans vert. vol. vii. p. 102. Avicula heteroplera, Sowerby, in Genera of Shells. Mytilus morio ; Dillwyn. Hab. Pulo Condore ; Mus. Brit. A fine purple-black species, with a broad, expanded, not elongated, wing, beautifully sculptured with fine con- centric stria;. June, 1857. AVICULA aculeala, Sovverby XIII. aerata, Reeve X. ala-corvi, Cliemniiz XII. ala-perdicis, Reece VI. Anglica, Brown XIII. Auoaiioides, Reeve IX. aquatilis, Reeve XIV. argentea, Reeve XVI. assula, Reeve XL Allantica, Brown XIII. Atlanticn, Lamarck XVIII. barbata, Reeve V. castanea, Reeve XIII. cetra. Reeve ... IX. Chamoides, Reeve XI. Ckinensis, Leach XV. cornea, Reeve XVII, crocea, Chemnitz XV. Cumingii, Reeve IV. electrina. Reeve XII. eximia, Reeve XVI. falcata, Lamarck XIII. fibrosa, Reeve XIV. fimbriata. Reeve IX. fiabellum. Reeve V. flammata. Reeve XI. flexuosa, Reeve IV. formosa, Reeve XV. fucata, Gould XVII. gregata, Reeve XVI. heteroptera, Lamarck XVI. heteroptera, Sowerby XVIII. hirundo, Turton XIII. hystrix. Reeve VIII. imbricata, Reeve VI. inquinata, Reeve XVI. iridescens. Reeve XIII. irradians, Reeve X. irrasa. Reeve X. lacunata, Reeve X. pecies. Plate. Specie 47 lata, Gray IV. 5 32 lentiginosa, Reeve . . VI. 13 u libelJa, Reeve .... XVII. 69 10 Ungulata, Deshayes .... XII. 44 ■17 lotorium, Lamarck . . . III. 3 26 inacroptera, Lamarck . . .... IL 2 52 maculata, Gould . XVII. 71 65 Malleoides, Reeve .... XII. 46 40 mannorata. Reeve .... XV. 58 47 muricata, Reeve ... VI. 12 73 maura, Reeve .... XVII. 72 9 nebulosa, Conrad ... X. 33 40 occa, Reeve . . . VIII. 24 38 perviridis. Reeve ... vin. 20 41 Pernoides, Reeve .... XL 39 57 Peruviana, Reeve ... XIV. 53 73 pica, Gould .... XVII. 71 57 Placunoides, Reeve . . XVII. 68 6 praetexta. Reeve ... VII. 15 43 producta. Reeve ... XIV. 55 62 pulchella. Reeve ... VIII. 22 47 punctulata. Reeve .... XII. 42 50 radula, Reeve .... VIII. 23 25 reticulata, Reeve .... XVIII. 74 7 rutila. Reeve .... VIII. 19 37 Savignyi, Deshayes .... XVIII. 75 4 scabriuscula. Reeve .... XIV. 54 60 scalpta. Reeve .... XL 38 74 semi-sagitta, Lamarck . . . .... XVI. 64 63 signata. Reeve ... XIV. 56 67 smai-agdina, Reeve .... XII. 45 75 spectrum, Reeve ... XV. 59 47 sterna, Gould .... XVI. 67 18 sugillata. Reeve .... IX. 27 11 Tarentina, iMmarck .... XIII. 47 61 tegulata, Reeve .... VII. 17 48 trochilus. Reeve .... XIV. 51 35 vexillum. Reeve .... XVII. 70 30 vitrea, Reeve .... XVIII. 72 29 zebra. Reeve .... XL 36 5' o liiiiiiiM^^^