Paludina vivipara.

P. Bengalensis.

P. viridis.

P. Francesii.

P. achatina.

P. Australis.

P. impura.

P. muriatica.

· · · · ·

P. sinistrosa.*

P. Nuttaliana.*

P. virens.*

P. pallida.*

P. subcarinata.*

P. genicula.*

P. magnifica.*

P. limosa.*

P. subglobosa.*

P. lapidaria.*

P. Virginica.*

P. hyalina.*

P. unicolor.*

P. nuclea.*

P. decisa.*

P. fuscus.*

P. dissimilis.*

P. ponderosa.*

P. integra.*

P. porata.*

P. lustrica.*

P. grana.*

P. Nickliniana.*

3. Genus _Ampullaria_. Pl. X.

_Animal._ Inflated, globular, spiral; foot oval, with a transverse

furrow at its anterior edge; head wide; tentacula superior, very long,

conical, and pointed; eyes situated at their external base, and

supported upon a very apparent peduncle; mouth vertical, situated

between two lips disposed in form of a horse-shoe and forming a kind of

muzzle; no superior tooth; a bristly lingual band, but not prolonged

into the abdominal cavity; a very large respiratory cavity, divided in

two by an incomplete horizontal partition.

Animals of this genus are oviparous; producing an egg nearly as large as

that of a pigeon, in which is found the young animal complete, and in a

perfectly formed shell.

_Shell._ This genus appears to partake of the characteristics, both of

the Paludina and the Natica, being fluviatile and frequently attaining a

large size; spire very short, the last whorl much larger than all the

others together; globular, very ventricose, umbilicus small, forming a

compressed funnel-shaped aperture, without interior callosity; aperture

longer than broad, with margins united; columellar lip thickened,

projecting and reflected over the umbilicus; operculum horny. Inhabits

the rivers of Europe. Thirteen species.

Ampullaria vivipara.

A. fasciata.

A. rugosa.

A. canaliculata.

A. effusa.

A. virens.

A. avellana.

A. fragilis.

A. Guinica.

A. carinata.

A. intorta.

A. conica.

· · · · ·

A. Pealiana.*

FAMILY XI.

NERITACEA. Four genera.

1. Genus _Neritina_. Pl. X.

_Animal._ Globular; foot circular, thick, without a furrow anteriorly,

or a lobe for the operculum posteriorly, with a bipartite columellar

muscle; conical tentacula; eyes subpedunculate at their external side;

mouth without labial tooth, but with a denticulated tongue prolonged

into the visceral cavity; a single large pectiniform branchia.

_Shell._ This genus was formerly classed with the Nerita, which in form

it much resembles, but from the circumstance of the latter inhabiting

the sea, and Neritinæ fresh water, it now forms a separate genus. Thin,

smooth, or finely striated, in all the species known, the right side of

the aperture does not possess any crenulations or teeth; the operculum

is provided with a lateral tooth on one side. Some species are armed

with spines; aperture semicircular; left margin smooth and sharp; spire

imperfect, generally dissolved by the animal. Inhabits the fresh water

rivers of Europe. Twenty-seven species.

Neritina perversa.

N. pulligera.

N. dubia.

N. zebra.

N. zigzag.

N. gagates.

N. lugubris.

N. lineolata.

N. fasciata.

N. semiconica.

N. strigilata.

N. meleagris.

N. virginea.

N. fluviatilis.

N. viridis.

N. Bætica.

N. careosa.

N. caffra.

N. Domingensis.

N. auriculata.

N. crepidularia.

N. brevispina.

N. Smithii.

N. spinosa.

N. Oweni.

N. pulchella.

N. corona.

2. Genus _Nerita_. Pl. X.

_Animal._ See Neritina.

_Shell._ Marine, but never spined, solid, semiglobular, flattened

beneath, not imbilicated; aperture large, entire, semilunar, the

external margin much hollowed; the columella sharp and often dentated,

operculum horny, subspiral, with a projecting tooth. Inhabits the seas

of S. America and W. Indies. Twenty species.

Nurita exuvia.

N. textilis.

N. undata.

N. peloronta.

N. chlorostoma.

N. atrata.

N. polita.

N. albicella.

N. chamæleon.

N. versicolor.

N. lineata.

N. scabricosta.

N. plicata.

N. tassellata.

N. signata.

N. ornata.

N. Australis.

N. rudis.

N. Ascensionis.

N. Malaccensis.

3. Genus _Navicella_. Pl. X.

_Animal._ Oval, not spiral, foot elliptical, very large, with a thin

subpapillary edge, advanced rather anteriorly, without marginal furrow,

but attached on each side to the visceral mass in all its posterior

portion so as to form a sort of cavity open transversely behind; head

very broad and semilunate; tentacula conical, contractile and distant;

eyes subpedunculated at the external root of the tentacula; mouth large

and longitudinal.

_Shell._ Fluviatile, elliptical, or oblong, convex above, summit

straight, depressed to the margin, concave beneath; no columella; the

columellar edge replaced by a sharp partition, covering part of the

aperture; a sinus at its left extremity; muscular impression horse-shoe

shaped, open in front and interrupted behind; thin, calcareous

operculum, with a subulate, lateral tooth adhering to the posterior

margin. Inhabits rivers in the Isle of France. Four species.

Navicella elliptica.

N. tesselatus.

N. lineata.

N. porcelanica.

4. Genera _Natica_. Pl. XI.

_Animal._ Oval, subspiral; foot profoundly and transversely bilobed

anteriorly, and having a horny or calcareous operculum; head provided

with long setaceous tentacula, flat, and auriculated at the base; eyes

sessile at the external side of the root of the tentacula; mouth armed

with a labial tooth.

_Shell._ Marine, distinguished from the Nerita by having no teeth, and

having an umbilicus modified by a callosity; very smooth and glossy; no

epidermis; spire evident, but low; columellar edge not toothed; right

edge without teeth; operculum calcareous and smooth, semi-spiral, with

concentrical ribs, fitting a groove on the columella. Inhabits the W.

Indian Ocean and American seas. Thirty-six species.

Natica ampullaria.

N. plumbea.

N. conica.

N. aurantia.

N. melanostoma.

N. mamilla.

N. mamillaris.

N. albumen.

N. glaucina.

N. canrena.

N. cruentata.

N. millepunctata.

N. vitellus.

N. helvacca.

N. collaria.

N. monilifera.

N. labrella.

N. unifasciata.

N. lineata.

N. fulminata.

N. maculosa.

N. vitata.

N. castanea.

N. arachnoidea.

N. zebra.

N. Marochiensis.

N. Javanica.

N. zonaria.

N. cancellata.

N. patula.

N. duplicata.

N. intricata.

N. glabrata.

N. Chinensis.

N. rufa.

· · · · ·

N. consolidata.*

N. duplicata.*

N. heros.*

N. pusilla.*

N. triseriata.*

N. rugosa.*

FAMILY XII.

JANTHINEA. One genus.

1. Genus _Janthina_. Pl. XI.

_Animal._ Of oval form, spiral, provided with a circular concave foot,

accompanied with a vesicular subcartilaginous mass, and natatory

appendages on each side; head very thick; tentacula scarcely at all

contractile; eyes situated beneath the extremity of long peduncles

placed at the external side of the tentacula, and appearing to form a

part of them; mouth at the extremity of a very thick proboscidiform

muzzle, between two vertical, subcartilaginous lips furnished with sharp

spines.

_Shell._ Of a beautiful violet colour, found in numbers floating on the

surface of the ocean, suspended by a vesicular appendage which gives a

rich purple stain. Extremely thin and fragile, spire low, lateral,

pointed, with subcarinated whorls; aperture large, subangular, modified

by the last whorl of the spire, edges disunited, the left formed by the

columella, which is straight, continuing beyond the base, right edge

sharp, with a sinus in the middle. Inhabits the Atlantic Ocean. Three

species.

Janthina naticoides.

J. communis.

J. exigua.

FAMILY XIII.

MACROSTOMIANA. Four genera.

1. Genus _Sigaretus_. Pl. XI.

_Animal._ Body oval, flat beneath; edges of the mantle vertical, thin,

extending beyond the body in all directions, sloped anteriorly; the

mantle itself dilated superiorly.

_Shell._ More or less thick, internal, without colour, much depressed,

with a short, low, lateral spire; left edge of the aperture trenchant;

two lateral muscular impressions very distant. Inhabits the Indian

Ocean. Two species are found in S. America. Six species.

Sigaretus convexus.

S. Haliotoideus.

S. cancellatus.

S. lævigatus.

· · · · ·

S. perspectivus.*

S. maculatus.*

2. Genus _Stomatella_. Pl. XI.

_Animal._ Unknown.

_Shell._ Distinguished from the Stomatia by being destitute of a

transverse rib, orbicular, oblong ear-shaped, imperforate; aperture

entire, large, sublongitudinal; right lip effuse, dilated, open.

Inhabits the Indian Ocean. Five species.

Stomatella imbricata.

S. rubra.

S. sulcifera.

S. auricula.

S. planulata.

3. Genus _Stomatia_. Pl. XI.

_Animal._ Unknown.

_Shell._ Ear-shaped, imperforate, spire prominent; aperture entire,

large, oblong; right margin and columella equally raised; a transverse

and tuberculated rib on the back. Inhabits the Indian Ocean. Two

species.

Stomatia phymotis.

S. obscurata.

4. Genus _Haliotis_. Pl. XI.

_Animal._ Body oval, much depressed, slightly spiral posteriorly,

provided with a large foot doubly fringed at its circumference; head

depressed; tentacula a little flattened; eyes at the summit of prismatic

peduncles situated at the external side of the tentacula; mantle very

thin, deeply slit at the left side; the two lobes pointed, and forming

by their union a kind of canal to conduct water into the branchial

cavity, and including two very long unequal branchial combs.

_Shell._ This beautiful genus derives its name from its resemblance to

the human ear. The exterior, tuberculated, and generally loaded with

marine substances, giving it an uncouth appearance, but its iridescent

interior forms a magnificent contrast; it is pearly, with all the hues

of the rainbow, recurving very depressed, oval, spire very small,

sometimes eroded, almost posterior, aperture as large as the shell, with

margins reflected inwards, the right sharp, left flat, and enlarged;

disk pierced with holes, disposed in a line parallel to and near the

left margin, the last commencing with a notch. These holes formed by the

animal, as it increases the size of the shell, to admit the passage of a

short syphon; they adhere to rocks, and are removed with much

difficulty. Inhabits the sea at Molucca. Nineteen species.

Haliotis tuberculata.

H. striata.

H. asinina.

H. glabia.

H. lamellosa.

H. unilateralis.

H. rugosa.

H. canaliculata.

H. tricostalis.

H. dubia.

H. iris.

H. tubifera.

H. excavata.

H. Australis.

H. Midæ.

H. rubra.

H. tricostata.

H. corrugata.

H. Mariæ.

FAMILY XIV.

PLICACEA. Two genera.

1. Genus _Tornatella_. Pl. XI.

_Animal._ Body oval, subspiral; foot divided into two heels by a wide

transverse furrow; head provided with two vertical cylindrical

tentacula, having the eyes placed sessilely upon their interior side.

_Shell._ Convolute, oval, cylindrical, mostly striated transversely; no

epidermis; spire very short, last whorl much larger than all the others

together; one or two large plaits on the columella. Inhabits the coast

of Britain. Six species.

Tornatella fasciata.

T. solidula.

T. auricula.

T. nitidula.

T. pedipes.

T. flammea.

2. Genus _Pyramidella_. Pl. XI.

_Animal._ As preceding genus.

_Shell._ Smooth and turreted, without epidermis; elongated, conical, or

subturriculated; aperture entire, demioval; the outer lip sharp and

dentated within, columella produced, subperforate at the base, furnished

with transverse plaits. Inhabits the American and W. Indian seas. Six

species.

Pyramidella terrebellum.

· · · · ·

Pyramidella maculosa.*

P. dolabrata.*

Pyramidella plicata.*

P. ventricosa.*

P. corrugata.*

FAMILY XV.

SCALARINA. Three genera.

1. Genus _Scalaria_. Pl. XI.

_Animal._ Spiral; foot short, oval, and inserted beneath the neck; two

tentacula terminated by a filament, and having the eyes at the extremity

of the dilated portion; a proboscis.

_Shell._ Marine, aperture circular, spire more or less pressed and

furnished with longitudinal ribs, formed by the preservation of the

reflected margin of the aperture; edges united, thickened, and outwardly

reflected; operculum horny and thin. Inhabits the American and Indian

seas. Fourteen living species, and three fossil.

Scalaria coronata.

S. communis.

S. Australis.

S. tenebralis.

S. varicosa.

S. raricosta.

S. lamellosa.

S. pretiosa.

· · · · ·

S. Martinii.*

S. Novanglia.*

S. lineata.*

S. subulata.*

S. multistriata.*

S. turbinata.*

2. Genus _Vermetus_. Pl. XI.

_Animal._ As preceding genus.

_Shell._ Very similar to the Serpula, but the organization of the animal

makes it a distinct genus; often found clustered together, and attached

to marine substances; conical, thin, tubular, loosely spiral, aperture

straight, circular, edges sharp and complete, several partitions not

perforated towards the summit, operculum horny and complete. Inhabits

the sandy shores of the W. Indies and Africa. Two species.

Vermetus lumbricalis.

V. maximus.

3. Genus _Delphinula_. Pl. XI.

_Animal._ See Scalaria.

_Shell._ Thick, and pearly in the interior, subdiscoid or conical;

spiral whorls rough or angular, often detached, spiny; large umbilicus,

sometimes triangular; the margins united, mostly fringed or ventricose.

Inhabits the Indian and American seas. Five living species. Seven

fossil.

Delphinula laciniata.

D. turbinopsis.

D. distorta.

D. rugosa.

· · · · ·

D. laxa.*

FAMILY XVI.

TURBINACEA. Eight genera.

1. Genus _Solarium_. Pl. XI.

_Animal._ Unknown.

_Shell._ Orbicular, depressed, umbilicus large and conical, crenulated

or dentated on the inner margin of the whorls; aperture not modified by

the last whorl of the spire, which is entirely flat; no columella.

Inhabits the Indian seas. Seven living species. E. fossil.

Solarium granulatum.

S. perspectivum.

S. hybridum.

S. lævigatum.

S. stramineum.

S. variegatum.

S. luteum.

2. Genus _Trochus_. Pl. XI.

_Animal._ Spiral, having the sides of the body often ornamented with

digitated or lobed appendages, and provided with a short foot, rounded

at its two extremities; head provided with two tentacula more or less

elongated, having the eyes upon a dilation of their external base; mouth

without superior tooth, but furnished with a spiral lingual band.

_Shell._ Marine, found in almost all parts of the world, some smooth,

others knotted, spined, tuberculated, or undulated; thick, generally

pearly, spire sometimes depressed, at others elevated and pointed at the

summit, sharp or carinated at its circumference, frequently umbilicated,

not always; aperture transversely depressed, the margins not united at

the upper part; columella arched and twisted, often projecting forward;

operculum horny, thin, with numerous spiral whorls, increasing from the

centre to the circumference. Inhabits the European seas. Ninety-nine

living species. Eight fossil.

Trochus imperialis.

T. longispina.

T. solaris.

T. Indicus.

T. radians.

T. pileus.

T. calyptræformis.

T. fimbriatus.

T. brevispina.

T. rotularius.

T. stella.

T. stellarius.

T. asperatus.

T. rhodostomus.

T. spinulosus.

T. jujubinus.

T. Javanicus.

T. annulatus.

T. doliarius.

T. granulatus.

T. granatum.

T. moniliferus.

T. iris.

T. ornatus.

T. bicingulatus.

T. calliferus.

T. umbilicaris.

T. undatus.

T. Pharaonis.

T. sagittiferus.

T. costulatus.

T. inermis.

T. agglutinans.

T. coelatus.

T. tuber.

T. magus.

T. merula.

T. argyrostomus.

T. Cookii.

T. niloticus.

T. pyramidalis.

T. noduliferus.

T. cærulescens.

T. obeliscus.

T. virgatus.

T. maculatus.

T. granosus.

T. squarrosus.

T. incrassatus.

T. flamulatus.

T. elatus.

T. marmoreus.

T. Mauritianus.

T. imbricatus.

T. triseliatus.

T. crenulatus.

T. asperulus.

T. acutus.

T. concavus.

T. lineatus.

T. zizyphinus.

T. conuloides.

T. conulus.

T. zonatus.

T. carneolus.

T. cinerarius.

T. excavatus.

T. nanus.

T. pyramidatus.

T. erythroleucos.

T. undosus.

T. unguis.

T. olivaceus.

T. Smithii.

T. maugeri.

T. Mediterraneus.

T. reticulatus.

T. indistinctus.

T. pellioserpentis.

T. armillatus.

T. acuminatus.

T. elegantus.

T. granosus.

T. tæniatus.

T. articulatus.

T. pictus.

T. callosus.

T. clanguloides.

T. interruptus.

T. lævis.

T. albidus.

T. celandii.

T. quadricostatus.

T. Byronianus.

T. elongatus.

T. filosus.

T. clangulus.

T. sulcatus.

T. Montagui.

3. Genus _Monodonta_. Pl. XI.

_Animal._ See Trochus.

_Shell._ This genus appears to be the connecting link between the

Trochus and Turbo; distinguished from the former, by an entirely rounded

aperture, slightly depressed; from the latter, by the toothlike

projecting angle the truncated columella occasions at the base; an

operculum. Inhabits the Chinese seas. Thirty-four species.

Monodonta bicolor.

M. pagodus.

M. tectum-persicum.

M. papillosa.

M. coronaria.

M. Ægyptiacea.

M. carchedonius.

M. modulus.

M. Listeri.

M. tectum.

M. labio.

M. Australis.

M. canalifera.

M. viridis.

M. fragarioides.

M. constricta.

M. tricarinata.

M. badia.

M. articulata.

M. lugubris.

M. punctulata.

M. caniculata.

M. seminigra.

M. rosea.

M. lineata.

M. rugosa.

M. zebra.

M. reticularis.

M. trochlea.

M. atrata.

M. obscura.

M. concamerata.

M. odontis.

M. pulcherrima.

4. Genus _Turbo_. Pl. XI.

_Animal._ Very similar to that of Trochus, the sides sometimes

ornamented with tentacular appendages, varying in number and form; head

proboscidiform; tentacula thin and setaceous.

_Shell._ Depressed conical, or subturreted; sometimes umbilicated,

frequently carinated at its circumference; interior pearly; aperture

round or depressed, the middle of external edge hollowed; edges rarely

joined by a callosity; columella arched, rarely twisted, not truncated

at the base; an operculum. Inhabits the Indian and American seas.

Fifty-one species.

Turbo marmoratus.

T. imperialis,

T. torquatus.

T. muricatus.

T. littoreus.

T. ustulatus.

T. Sarmaticus.

T. cornutus.

T. argyrostomus.

T. chrysostomus.

T. radiatus.

T. setosus.

T. Spenglerianus.

T. petholatus.

T. undulatus.

T. pica.

T. versicolor.

T. smaragdus.

T. cidaris.

T. diaphanus.

T. rugosus.

T. coronatus.

T. crenulatus.

T. margaritaceus.

T. vestitus.

T. incarnatus.

T. Nicobaricus.

T. neritoides.

T. retusus.

T. bicarinatus.

T. rudis.

T. obtusus.

T. pullus.

T. cærulescens.

T. cancellatus.

T. costatus.

T. niger.

T. minimus.

T. tuberculatus.

T. zebra.

T. pintado.

T. crassus.

T. fluctuatus.

T. hippocastanum.

T. cineræus.

T. obscurus.

T. saxosus.

· · · · ·

T. irroratus.*

T. canaliculatus.*

T. palliatus.*

T. obligatus.*

5. Genus _Planaxis_. Pl. XI.

_Animal._ Unknown.

_Shell._ Ovate conical, solid; aperture ovate, sublongitudinal,

columella flat and truncated at the base, separated from the right

margin by a narrow sinus. Interior surface of the right margin furrowed

or lineated, and a callosity running under the summit. Inhabits the

American and W. Indian seas. Four species.

Planaxis sulcata.

P. bicolor.

P. undulata.

· · · · ·

P. lævigatum.*

6. Genus _Phasianella_. Pl. XI.

_Animal._ Spiral; foot oval; upon each side an appendage ornamented with

filaments; head edged anteriorly with a kind of veil formed by a double,

bifid, fringed lip; two, long, conical tentacula; eyes borne upon short

peduncles and situated at the external part of their base; mouth between

two vertical subcornate lips.

_Shell._ Marine; many of them very rare and valuable; their beauty of

colouring disposed so as to resemble the plumage of a pheasant. Oval,

rather thick, smooth and glossy, spire pointed; columella uniting itself

with the left edge, forming interiorly a longitudinal callosity;

aperture oval, larger before, with edges disunited; operculum

calcareous, oval, oblong, subspiral, the summit at one extremity.

Inhabits the British coast. Twelve species.

Phasianella variegata.

P. rubens.

P. bulimoides.

P. elegans.

P. lineata.

P. nebulosa.

P. sulcata.

P. angulifera.

P. lineolata.

P. perdix.

P. Mauritania.

P. Peruviana.

7. Genus _Turritella_. Pl. XI.

_Animal._ Spiral; foot fringed anteriorly by a transversely wrinkled

band; tentacula long, very fine towards their extremity, somewhat thick

at their base, and having the eyes upon an inflation; the head skirted

with a veil or fringe garnished with filaments.

_Shell._ Turreted, not nacred, rather thin, striated in the direction of

the decurrence of the spire; very pointed, and with numerous whorls;

aperture rounded; the edges posteriorly, the right exceedingly thin, and

slightly sinuous towards the middle; operculum horny. Inhabits the

Indian and American Oceans. Twenty-one living species. Thirty-seven

fossil.

Turritella duplicata.

T. imbricata.

T. terebra.

T. replicata.

T. fuscata.

T. brevialis.

T. trisulcata.

T. carinifera.

T. cornea.

T. bicingulata.

T. exoleta.

T. Australis.

· · · · ·

T. Virginiana.*

T. alternata.*

T. impressa.*

T. concava.*

T. saturalis.*

T. equalis.*

T. erosa.*

T. reticulata.*

T. bisuturalis.*

8. Genus _Rotella_. Pl. XI.

_Animal._ See Turbo.

_Shell._ Orbicular, glossy, destitute of epidermis; spire short,

subconic; lower parts convex and callous; aperture half round. Indian

Ocean. Seven species.

Rotella lineolata.

R. Javanica.

R. rosea.

R. formosa.

R. saturalis.

R. equalis.

R. monolifera.

FAMILY XVII.

CANALIFERA. Eleven genera.

1. Genus _Cerithium_. Pl. XI.

_Animal._ Much elongated; the mantle prolonged into a canal at its left

side, but without a distinct tube; the foot short, oval, with an

anterior marginal furrow; the head terminated by a depressed

proboscidiform muzzle.

_Shell._ More or less turriculated and tuberculous; aperture small,

oval, and oblique; the columellar edge much excavated and callous, the

right edge trenchant, and slightly dilating with age. Operculum horny,

oval, round, subspiral, and striated, upon the external face. They are

found in almost every sea. Forty-five living species. Sixty fossil.

Cerithium palustre.

C. telescopium.

C. nodulosum.

C. obeliscum.

C. aluco.

C. giganteum.

C. sulcatum.

C. ebeninum.

C. vulgatum.

C. granulatum.

C. echinatum.

C. subulatum.

C. zonale.

C. tortulosum.

C. morus.

C. erythræonense.

C. radula.

C. decollatum.

C. semigranosum.

C. lineatum.

C. fasciatum.

C. muricatum.

C. crassum.

C. obtusum.

C. asperum.

C. vertagum.

C. literatum.

C. heteroclites.

C. semiferrugineum.

C. tuberculatum.

C. ocellatum.

C. atratum.

C. eburneum.

C. lima.

C. zonatum.

C. rugosum.

C. mitriforme.

C. punctatum.

C. perversum.

C. petrosum.

· · · · ·

C. exasperatum.*

C. dislocatum.*

C. Emersonii.*

C. Nigrocinctum.*

C. Greenii.*

2. Genus _Pleurotoma_. Pl. XI.

_Animal._ Body oval, spiral above, enveloped in a mantle of which the

right edge is furnished with lobes; foot oval and somewhat short; eyes

situated at the external base of long, conical, retractile tentacula;

mouth having a long extensible proboscis armed with hooked teeth; organs

of respiration formed by two unequal branchiæ.

_Shell._ Fusiform, a little wrinkled, with a turriculated spire; a small

oval aperture, terminated by a straight canal more or less long, with

the right edge trenchant; a horny operculum. Distinguished from the

Cerithium by having a notch in the margin. Twenty-nine living species.

Thirty fossil.

Pleurotoma muricata.

P. echinata.

P. flavidula.

P. imperialis.

P. auriculifera.

P. spirata.

P. bimarginata.

P. cingulifera.

P. Babylonia.

P. marmorata.

P. crispa.

P. nodifera.

P. maculata.

P. interrupta.

P. cincta.

P. crenularis.

P. unizonalis.

P. lineata.

P. fascialis.

P. buccinoides.

P. virgo.

P. undosa.

P. tigrina.

P. albina.

P. mitra.

P. elegans.

P. curvirostris.

· · · · ·

P. decussata.*

P. bicarinata.*

3. Genus _Turbinella_. Pl. XI.

_Animal._ Imperfectly known.

_Shell._ Usually turbinated (but sometimes turriculated), wrinkled,

thick; spire slightly variable in form; aperture elongated, terminated

by a straight canal, and often rather short; the left edge nearly

straight and formed by a callosity concealing the columella, which has

two or three nearly transverse and unequal folds; the right edge entire

and trenchant. Found in the Equatorial or Australian seas. Twenty-three

species.

The Conchologist's First Book A System of Testaceous Malacology, Arranged Expressly for the Use of Schools, in Which the Animals, According to Cuvier, Are Given With the Shells, a Great Number of New Species Added, and the Whole Brought Up, as Accurately as Possible, to the Present Condition of the Science. · 第 7 / 10 段