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(from Sowerby's Genera.)

 

Wood bored by Teredo.

 

Xylophaga dorsalis. Xylotrya, Leach.

 

The same, in wood.

         (This would be more properly placed in Pholadaria.)

 

Gastrochæna Modiolina, in the tube (from Sowerby's Genera.)

 

Fistulana Clava. }

                           }   (From Sowerby's Genera.)

Tube of the same. }

 

         _Fam._ Pholadaria.

 

Pholas Dactylus; _a_, plates of the hinge.

 

---- papyracea. Pholadidæa.

 

Pholadomya Candida.

 

Galeomma Turtoni.

 

Front view of the same.

 

         (Here Xylophaga should be placed, see Tubicolaria.)

 

         _Fam._ Solenacea.

 

Solen ensis. Ensis, Schum. Ensatella, Sw.

 

Solen radiatus. Solenocurtus, Bl. Leguminaria, Schum. Siliqua,

           Megerle.

 

Lepton squamosum. (from Turton.)

 

Novaculina gangetica.

 

Glanconome Chinensis.

 

Panopæa Australis.       }

                                  }   (From Sowerby's Genera.)

Hinge of Panopæa Faujasii.}

 

Glycimeris Siliqua.

 

Solenimya Mediterranea.

 

         _Fam._ Myaria.

 

Anatina rostrata. Auriscalpium, Megerle.

 

Anatinella Sibbaldii.

 

Mya truncata.

 

Periploma inæquivalvis. Osteodesma, Desh. _a_, bone of the

           hinge, (from Blainville.)

 

Myochama anomioides; lower valve with clavicle, and hinge of

           upper valve.

 

External view of the same, attached to a Trigonia.

 

Cleidothærus Chamoides, attached valve.

 

Upper valve of the same, with the clavicle.

 

         _Fam._ Mactracea.

 

Lutraria papyracea. Ligula, Leach. Carinella, Adans.

 

---- Solenoides. Cutellus ----?

 

Mactra Stultorum.

 

---- plicataria. Spisula? Gray.

 

---- Spengleri. Schizodesma, Gray.

 

---- bicolor. Mulinia, Gray.

 

Gnathodon cuneatus. Clathodon, Conrad.

 

Crassatella rostrata.

 

Amphidesma reticulatum.

 

Erycina plebeja. Mesodesma, Desh.

 

Cuming mutica.

 

Ungulina transversa, (from Sowerby's genera.)

 

         _Fam._ Corbulacea.

 

Corbula nucleus.

 

Pandora rostrata.

 

         _Fam._ Lithophagidæ.

 

Petricola Roccellaria.

 

---- Carditoidea. Coralliophaga, Bl.

 

Thracia corbuloides.

 

Saxicava rugosa.

 

Hiatella biaperta.

 

Sphænia Binghamii.

 

Venerirupis vulgaris.

 

         _Fam._ Nymphacea.

 

Sanguinolaria rosea. Lobaria, Schum.

 

---- Diphos. Soletellina, Bl.

 

Psammobia Ferroensis. Gari, Schum.

 

Corbis fimbriata. Fimbria, Megerle.

 

Grateloupia Moulinsii. (from Lea.)

 

Egeria triangulata, (from Lea.)

 

Lucina tigerina.

 

Tellina radiata.

 

---- lingua-felis; _a_, showing the fold in the ventral

           margin.

 

Tellinides rosea.

 

Donax cuneatus.

 

Capsa Braziliensis, young.

 

Astarte Danmoniensis. Crassina, Lam.

 

         Fluviatile Conchacea.

 

Cyclas rivicola. Cornea, Megerle.

 

Pisidium amnicum. Pisum, Megerle.

 

Cyrena fuscata. Corbicula, Megerle.

 

Cyrenoides Dupontia.

 

Potamophila radiata. Galathæa, Lam. _v._ ventral margin.

 

         Marine Conchacea.

 

Cyprina vulgaris. Arctica, Schum.

 

Cythera Meretrix; _e._ escutcheon.

 

117 _a._ C. Meroe; _Gen._ Meroe.

 

117 _b._ C. Tripla; _Gen._ Trigona.

 

117 _c._ C. maculata; _Gen._ Chione.

 

117 _d._ C. Castrensis; _Gen._ Circe.

 

Artemis lincta; _s_, sinus in the Palleal impression.

 

Venus cancellata. Antigona, Schum. _a._ anterior; _p._

           posterior; _c._ cardinal teeth.

 

119 _a._ V. Verrucosa. Dosina, Schum.

 

Pullastra Textile.

 

         _Fam._ Cardiacea.

 

Venericardia, recent species, resembling V. planicostata, Lam.

 

Cardium Dionæum. Cardissa, Sw. Hemicardium, Nonnull.

 

---- angulatum.

 

123*. ---- Greenlandicum. Aphrodita, Lea, Acardo, Sw.

 

123**. --- hemicardium. _Gen._ Hemicardum.

 

Cardita calyculata.

 

Cypricardia angulata.

 

Isocardia Moltkiana.

 

Megalodon cucullatus, (from Sow. Min. Con.)

 

Hippagus Isocardioides, (from Lea.)

 

Hippopodium ponderosum, (from Sow. Min. Con.)

 

Pachymya gigas, (from Sow. Min. Con.)

 

         _Fam._ Arcacea.

 

Arca antiquata.

 

Bysso-arca Noæ.

 

Cucullæa auriculifera, (from Sowerby's Genera.)

 

Pectunculus pilosus.

 

Myopara costata, (from Lea.)

 

Crenella.

 

Nucula margaritacea, three views.

 

Solenella Norrissii.

 

         _Fam._ Trigonacea.

 

Trigonia pectinata.

 

Castalia ambigua. Tetraplodon pectinatus, Spix.

 

         _Fam._ Nayades.

 

Alasmodon complanatus, Say. Margaritana, Schum.

 

Dipsas plicatus, Leach. Cristaria, Schum.

 

Hyria corrugata, Lam. Paxyodon, Schum. Triplodon.

 

Syrmatophora, Sow. Prisodon, Schum. Diplodon, Spix.

 

Unio littoralis, Lam. Mysca ovata, Turton.

 

---- Alatus. Symphynota, Lea.

 

---- Atratus, Lam. Naia, Sw.

 

Monocondylæa Paraguayana.

 

Iridina elongata. Pleiodon, Conrad.       } Platiris, Lea.

                                                   }

Mycetopus solenoides, D'Orb. Spatha, Lea. }

 

Anodon Cataractus.

 

         _Fam._ Chamacea.

 

Chama Lazarus. Jataronus, Adanson.

 

Diceras perversum, (from Sowerby's Genera.)

 

Etheria semilunata.

 

         _Order_, MONOMYARIA.

         _Fam._ Tridacnacea.

 

Hippopus maculatus.

 

Tridacna elongata.

 

         _Fam._ Mytilacea.

 

Mytilus achatinus.

 

---- polymorphus. Dreissina.

 

Modiola Tulipa.

 

Lithodomus Dactylus.

 

Pinna saccata.

 

         _Fam._ Malleacea.

 

Avicula Hirundo.

 

---- margaritifera. Meleagrina, Lam.

 

Malleus Vulgaris. Himantopoda, Schum.

 

Perna Ephippium.

 

Catillus Lamarckii. Inoceramus, Sow. (from Blainville.)

 

Crenatula mytoloides. }

                               }

Gervillia aviculoides. } (from Sowerby's Genera.)

                               }

Pulvinites Adansonii. }

 

         _Fam._ Pectinides.

 

Pecten varius. Janera, Schum.

 

---- Plica. Decadopecten, Rüppell.

 

Hinnites Pusio. Pecten Pusio, Lam.

 

Lima squamosa.

 

Dianchora striata, (from Sow. Min. Con.)

 

Plagiostoma spinosum, (from Sow. Min. Con.)

 

Spondylus Americanus, hinge. (See Frontispiece.)

 

Plicatula gibbosa. Harpax, Parkinson.

 

Pedum Spondyloideum, (from Sow. Gen.)

 

         _Fam._ Ostracea.

 

Ostrea edulis.

 

---- Folium. Dendostrea, Sw.

 

Gryphæa incurva.

 

Exogyra conica, (from Sow. Min. Con.)

 

Placuna placenta. _Gen._ Placenta, Schum.

 

Vulsella lingulata.

 

Anomia Ephippium.

 

Hinge of the same, with bony process.

 

Hinge, showing the fissure.

 

Placunanomia Cumingii.

 

Hinge of the same, showing the fissure.

 

Hinge of the unattached valve.

 

Mulleria. (from Sow. Gen.)

 

         _Fam._ Rudistis.

 

Sphærulites foliacea. (Radiolites is more conical.)

 

Calceola Sandalina.

 

Birostrites inæquiloba, internal cast of Sphærulites.

 

_a._ Crania personata, dorsal valve; _b._ antiquata, interior.

         (This would be more properly placed in Brachiopoda.)

 

Hippurites Cornucopia, (from Blainville.)

 

Hipponyx Cornucopia, attached valve.

 

Upper valve of the same.

 

         _Fam._ Brachiopoda.

 

Orbicula lævis.

 

Terebratula Psittacea; _a._ anterior margin.

 

Atrypa reticularis. Trigonotreta, König.

 

Cyrtia exporrecta.

 

Delthyris plycotes, (from Dalman.)

 

Leptæna depressa, Dalman. Producta, Sow. (from Sow. Gen.)

 

206*. Producta antiquata.

 

Orthis basalis, Dalman. Strophomena, Rafinesque.

 

Trigonosemus Lyra, König.

 

Magas pumilus, Sow.

 

Gypidia conchidium, (from Dalman.)

 

Interior of the large valve of the same. (from Dalman.)

 

Pentamerus Aylesfordii, (from Sow. Min. Con.)

 

---- lævis.

 

Spirifer trigonalis. }

                             } Trigonotreta, König, (from Sow. Gen.)

---- dorsatus.       }

 

Thecidium recurvirostrum.

         (Here should come Crania, see Rudistes.)

 

Pycnodonta radiata, (from Fischer.)

 

Hinge of the same.

 

Lingula Anatina.

 

         _Class_, MOLLUSCA.

         _Order_, PTEROPODA.

 

Atlanta helicialis.

 

Cleodora cuspidata.

 

Creseis spinifera.

 

Cuvieria columella.

 

Spiratella limacinea, with animal; Limacella, Lam. Limacina

           Cuvier. (from Blainville.)

 

Vaginula Daudinii.

 

Hyalæa tridentata. Archonte, Montf.

 

         _Order_, GASTEROPODA.

         _Fam._ Phyllidiana.

 

Chiton spinosus.

 

Chitonellus striatus. (from Sow. Gen.)

 

Patella oculus; _a._ anterior.

 

Patella pellucida. Helcion, Montf. Ansates, Klein.

 

Patelloida Antillarum. Lottia, Gray.

 

231*. Siphonaria Sipho.

 

         _Fam._ Semiphyllidiana.

 

Pleurobranchus membranaceus.

 

Umbrella indica. Gastroplax, Bl.

 

         _Fam._ Calyptracea.

 

Calyptræe Equestris.

 

---- extinctorium.

 

---- auriculata.

 

---- Pileus. Infundibulum, Montf.

 

Side view of the same.

 

Crepidula Porcellana.

 

Capulus ungaricus, two views. Pileopsis, Lam.

 

Emarginula fissura.

 

Parmophorus elongatus. Scutus, Montf.

 

Rimula Blainvillii.

 

Cemoria Flemingii.

 

Fissurella oriens.

 

Ancylus fluviatilis.

 

         _Fam._ Bullæana.

 

Bulla fragilis. Akera, Nonnul.

 

---- aperta. Bullæa, Lam.

 

---- aplustre. Aplustre, Schum.

 

---- Naucum. Atys, Montf.

 

---- lignaria. Scaphander, Montf.

 

---- Ampulla.

 

---- lineata.

 

         _Fam._ Aplysiacea.

 

Aplysia Petersoni.

 

Dolabella Rumphii.

 

         _Fam._ Limacinea.

 

Parmacella calyculata, Cryptella. Webb.

 

Parmacella Olivieri. (from De Ferussac.)

 

---- palliolum. (from De Ferussac.)

 

Limax antiquorum.

 

Plectophorus corninus.

 

Testacella Haliotoidea.

 

Helixarion, Cuv.       }

                               } Vitrina, Drap. Cobresia, Haubner.

Helicolimax pellucida. }

 

         _Order_, TRACHELIPODA.

         _Fam._ Colimacea.

 

                                                   _Sub-genera_ of De Fer.

 

Helix brevipes, Drap.                         Helicophanta.

 

Succinea amphibia.             }

                                       }             Cochlohydra.

---- patula. Amphibulima, Lam. }

 

Helix hæmastoma. Acarus, }

                         Montf. }

---- Pomatia.           }                   Helicogena.

                                }

Streptaxis contusa, Gray.}

                                 }

Another view of the same.}

 

Anastoma depressum.       }

                                   }

Another view of the same. }

                                  }

Helix nux-denticulata.   }                   Helicodonta.

                                   }

Proserpina nitida.       }

                                   }

Polygyra septemvolva.     }

                                  }

Another view of the same. }

 

Carocolla Lamarckii.         }

                                       }               Helicigona.

Helix pileus. Geotrochus, Sw. }

 

---- algira. Zonites, Montf. }

                                     }               Helicella.

---- citrina. Naninia, Gray. }

 

---- epistilum     Helicostyla.

 

Bulinus rosaceus; _a._ apex. }

                                           }

---- Guadaloupensis; Bulinulus,   }

                               Leach.     }           Cochlostyla.

---- Lyonetianus. Gibbus, Montf. }

                                           }

---- lubricus. Cionella, Jeffreys.}

 

Achatina virginea Liguus, Montf. }

                                         }           Cochlitoma.

Achatinella, Sw.                 }

 

Polyphemus Glans, Montf. Cochlicopa.

 

Bulinus decollatus, in a young state.         Cochlicella.

 

Azeca tridens, Jeffreys. Turbo tridens, }     Cochlogena.

                                         Gmelin. }

 

Pupa Uva.                 }

                                   }

Alæa marginata; Jeffreys. }

                                    }                 Cochlodonta.

Vertigo pusilla.           }

                                   }

Megaspira Ruschenbergiana. }

 

Clausilia Macascarensis; _a_, a break, }

         to show the clausium.                      } Cochlodina.

                                                     }

Balea fragilis.                             }

 

Auricula Judæ.

 

---- coniformis. Conovulum, Lam. Melampus, Montf.

 

Pedipes Adansonii.

 

299*. Scarabæus imbrium.

 

Chilina Dombeyana.

 

Carychium minimum.

 

Partula Australis.

 

Cyclostoma ferrugineum.

 

---- Involvulus. Cyclophorus, Montf.

 

Nematura Deltæ.

 

Helicina major.

 

Operculum of the same.

 

         _Fam._ Lymneana.

 

Limnæa stagnalis.

 

---- auricularia. Radix, Montf.

 

---- castanea. Physa, Drap.

 

Planorbis corneus.

 

Planaria niteus, (from Lea.)

 

         _Fam._ Melaniana.

 

Melania subulata. Melas, Montf.

 

Melania prærosa and monodontoides. Anculosa, Say.

 

Melanopsis costata. Faunus, Montf.

 

Pirena terebralis.

 

Pasithæa striata, (from Lea.)

 

         _Fam._ Peristomata.

 

Ampullaria fasciata. Amphibola; _a_, aperture.

 

---- Guinaica. Lanistes, Montf.

 

---- Cornu-arietis. Ceradotes, Guild.

 

Paludina Bengalensis.

 

Valvata piscinalis.

 

         _Fam._ Neritacea.

 

Navicella elliptica.

 

Neritina virginea. Theodoxus, Montf.

 

---- spinosa. Clithon, Montf.

 

---- perversa. Velates, Montf. (from Sow. Gen.)

 

Natica mamilla. Polinices, Montf.

 

---- lineata.

 

Nerita peloronta. Peloronta, Oken.

 

Neritopsis granosa.

 

Pileolus plicatus.

 

Janthina fragilis.

 

         _Fam._ Macrostomata.

 

Sigaretus concavus.

 

Stomatia Phymotis.

 

Stomatella imbricata.

 

Velutina lævigata. Galericulus, Nonnul.

 

Haliotis rubra, young.

 

---- tricostalis, Lam. Padollus, Montf.

 

Scissurella elatior, magnified. }

                                         }     (from Sow. Gen.)

Pleurotomaria reticulata.       }

 

         _Fam._ Plicacea.

 

Pyramidella terebellum.

 

Tornatella solidula. Acteon, Montf.

 

Monoptygma elegans. (from Lea.)

 

         _Fam._ Scalariana.

 

Vermetus lumbricalis.

 

Rissoa reticulata.

 

Eulima labiosa.

 

---- marmorata. Bonellia, Desh.

 

Cirrus nodosus, Sow.

 

Euomphalus pentangulus. (from Sow. Min. Con.)

 

Scalaria Pallassii. Aciona, Leach.

 

Delphinula laciniata.

 

         _Fam._ Turbinacea.

 

Solarium perspectivum.

 

---- Bifrons. Bifrontia and Omalaxis, Desh.

 

Orbis Rotella. (from Lea.)

 

Another view of the same.

 

Rotella vestiaria, Pitonellus, Montf.

 

Trochus stellaris, Lam. Calcar, Montf. Turbo, Sow.

 

---- maculatus. Tectus, Montf.

 

---- agglutinans. Phorus.

 

---- Pharaonis. Clauculus, Montf.

 

Margarita tæniata.

 

Littorina vulgaris.

 

363*. Assiminea Grayana.

 

Lacuna pallidula.

 

Planaxis sulcata.

 

Monodonta labeo; Odontis, Sow.

 

Phasianella variegata.

 

Turbo setosus. Marmarostoma, Sw.

 

Tuba striata. (from Lea.)

 

Turritella imbricata.

 

Monotygma, Gray.

 

         _Fam._ Canalifera.

 

Cerithium Aluco, front.

 

Nerinea Goodhallii. (from Geol. Trans.)

 

Triphora plicata. (from Deshayes.)

 

End view of the same.

 

Potamis muricata. Pyrazus, Montf. Tympanostomata, Schum.

 

Cerithium Telescopium. _Gen._ Telescopium.

 

Pleurotoma Babylonia; _a, a_, extremities of the axis.

 

---- strombiformis, Clavatula, Lam.

 

Turbinella corniger. Scolymis, Sw.

 

---- polygona. Polygonum, Schum.

 

Spirillus. _Gen._ Pyrella, Sw. Turbinella spirillus, Auct.

 

Cancellaria reticulata.

 

Fasciolaria Trapezium.

 

Fusus Colus; _a_, anterior of the aperture; p, posterior.

 

Pyrula perversa. Fulgur, Montf.

 

---- papyracea. Rapanus, Schum. Bulbus, Humph. Rapella, Sw.

 

---- Ficus. Ficula, Sw.

 

Struthiolaria straminea.

 

Ranella ranina. Apollon, Montf.

 

---- neglecta. Bufo, Montf.

 

Murex inflatus. Chicoreus, Montf.

 

---- haustellum. Brontes, Montf.

 

Typhis tubifer. (from Deshayes.)

 

Triton pilearis.

 

---- cutaceus. Aquillus, Montf.

 

---- Lotorium. Lotorium, Montf.

 

---- anus. Persona, Montf.

 

         _Fam._ Alatæ.

 

Rostellaria curvirostrum.

 

---- columbaria. Hippochrenes, Montf. (from Sow. Gen.)

 

---- Pes-pelicani. Aporrhais, Petiver.

 

Pteroceras aurantiacum.

 

Strombus pugilis.

 

         _Fam._ Purpurifera.

 

Cassidaria echinophora. Morio, Montf.

 

Side view of the outer lip, to shew the canal.

 

Oniscia Oniscus. Cassidara.

 

Cassis tuberosa, reduced.

 

---- erinaceus. Cassidea, Sw.

 

---- testiculus. Cypræcassis, Stutchbury.

 

Ricinula horrida. Sistrum, Montf.

 

Purpura persica.

 

Tritonidea (_Pollia_, Gray.) articularis.

 

Phos senticosa.

 

Monoceros crassilabrum.

 

Concholepas Peruviana.

 

Harpa ventricosa.

 

Dolium maculatum.

 

Buccinum undatum; _a_, anterior of the aperture; _p_, posterior.

 

---- papillosum. Alectrion, Montf.

 

Nassa arcularia.

 

---- neritoidea. Cyclops, Montf.

 

Cyllene, Gray.

 

Eburna Zeylanica.

 

Bullia vittata.

 

Terebra maculata. Subula, Bl.

 

Trichotropis bicarinata.

 

         _Fam._ Columellata.

 

Columbella mercatoria.

 

Mitra plicaria; _c_, termination of the columella.

 

Conohelix marmorata.

 

Voluta Vespertilio. Cymbiola, Sw.

 

Cymba porcina.

 

Melo Æthiopicus.

 

Volutilithes spinosus.

 

Marginella Glabella. Glabella, Sw. Cucumis, Klein.

 

---- persicula. Volutella, Sw. Persicula, Schum.

 

Volvaria concinna.

 

         _Fam._ Convolutæ.

 

Ovulum Ovum. Class CIRRIPEDES.pg. 5

 

---- verrucosum. Calpurnus, Montf.

 

---- Volva. Radius, Montf.

 

---- gibbosum. Ultimus, Montf.

 

Cypræovulum capense.

 

Cypræa arabica, back.

 

The same, front.

 

Cypræa Algoensis. Luponia, Gray, front.

 

---- Pediculus. Trivia, Gray, back.

 

The same, front.

 

Terebellum convolutum. Seraphs, Montf.

 

---- subulatum, front.

 

Erato Mangeriæ.

 

Ancillaria glabrata. Anolax, Brongn.

 

---- cinnamonea.

 

Oliva Maura.

 

---- subulata. Hiatula, Sw.

 

Conus nocturnus. Rhombus, Montf.

 

---- Nussatella. Hermes, Montf.

 

---- Textile. Cylinder, Montf.

 

---- geographus. Rollus, Montf.

 

         _Order._ CEPHALOPODA.

         _First Division._ Polythalamous Cephalopoda.

        _Fam._ Orthocerata.

 

Amplexus coralloides. (from Sow. Min. Con.)

 

Orthoceratites annulatus.

 

Nodosaria æqualis.

 

Belemnites, with the outer coat broken to shew the alveole.

 

---- portion of the alveole separated.

 

---- hastatus. Hibolithes, Montf. (from Blainville.)

 

Conularia quadrisulcata.

 

Conilites pyramidatus, (from Blainville.)

 

         _Fam._ Lituacea.

 

Spirula Peronii.

 

        _Fam._ Nautilacea.

 

Nummulites buticularis, outside. Helicites, Bl. Camerina, Brookes.

 

The same inside, to shew the chambers.

 

Nautilus pompilius, young. See Frontispiece.

 

Simplegas sulcata.

 

Endosiphonites. (from Camb. Philos. Trans.)

 

         _Fam._ Ammonacea.

 

Ammonoceras. (from Blainville.)

 

Ammonites; _a_, break in the shell, showing the sinuous septa.

 

Orbulites crassus. Globulites, Nonnul. Angulites, Montf. reduced.

 

479*. ---- discus. Aganides, Montf.

 

Goniatites striatus.

 

Scaphites æqualis.

 

Crioceratites Duvallii.

 

Turrilites tuberculatus.

 

Baculites Faujasii. Portion near the centre.

 

484*. Hamites cylindricus; _a_, internal cast of part of the shell;

           _b_, hollow external cast of the remainder.

 

         _Second Division._ Monothalamous Cephalopoda.

 

Argonauta Argo.

 

Bellerophon tenuifasciata. (from Sow. Gen.)

 

The same, shewing the dorsal keel.

 

         _Order._ HETEROPODA.

 

Carinaria Mediterranea.

 

       *       *       *       *       *

 

EXPLANATION OF THE NEW PLATES.

 

         _Order._ SESSILE CIRRIPEDES.

 

Pyrgoma monticularia. _Sub-genus_, Daracia, Gray, back and

           front.

 

The same, in situ.

 

         _Fam._ Myaria.

 

Lyonsia Norvegica. Anatina, Nonnul. Inside view of both valves.

 

Outside, with the valves closed.

 

Næra longirostrum. Anatina longirostris, Lam. Inside of both

           valves.

 

Outside, with both valves closed.

 

A smaller species of Næra, shewing the inequality of the valves.

 

         _Fam._ Mactracea.

 

Amphidesma tennis. Abra, Leach.

 

Ervillia nitens.

 

         _Fam._ Corbulacea.

 

Potamomya, of some authors. A fresh-water shell resembling

           Corbula. Outside, valves closed.

 

Inside of both valves.

 

         Fluviatile Conchacea.

 

Cyclas amnica. Pera, Leach.

 

         _Fam._ Cardiacea.

 

Cardilia semisulcata. Isocardia semisulcata, Lam. Internal view.

 

External view of the same valve.

 

Cardium apertum. Papyridea, Sw.

 

The same, shewing the umbones.

 

Pleurorynchus, fossil, (from Mineral Conchology.)

 

         _Fam._ Phyllidiana.

 

Chiton fascicularis. Phakellopleura, Guild.

 

---- amiculatus. Amicula, Gray.

 

         _Fam._ Calyptracea.

 

Scutella, Brod. Internal view.

 

External view of the same.

 

Ancylus, a reversed species, illustrating the genus Velletia,

           Gray. Enlarged view.

 

The same, natural size.

 

Pedicularia. Enlarged figure, (copied from Swainson.)

 

The same, natural size, growing on coral.

 

         _Fam._ Colimacea.

 

Achatina? octona. Macrospira, Guild.

 

Stenopus cruentatus, Guild. Under side.

 

---- lividus.

 

Helix, the aperture covered by the epiphragm.

 

Pupa secale, Drap. Abida, Leach.

 

---- pagoda. Gonidomus, Sw.

 

Truncatella, enlarged figure.

 

The same, natural size.

 

Auricula caprella. _Gen._ Caprella, Nonnul. Front view.

 

The same, dorsal view.

 

Pupina vitrea.

 

---- antiquata.

 

---- Namezii.

 

---- lubrica. Callia? Gray.

 

Cyclostoma, a pupiform species. Megalomastoma, Guild.

 

---- Planorbulum. Cyclotus, Guild.

 

---- a similar species, with the complicated notch at the

           posterior part of the aperture. Pterocyclos, Gray.

 

Helicina acutissima, nobis. View of the under side. Trochatella,

           Sw.

 

The same in profile.

 

}

         }

} Strophostoma, Desh. three views.

         }

}

 

         _Fam._ Peristomata.

 

Paludina impura. Bithinia, Gray?

 

Ampullaria avellana. Thallicera, Sw. Ampullarina?

 

A species of Ampullaria having a thickened ledge on which the

           shelly operculum rests. Pachystoma, Guild. changed to

           Pachylabra, Sw.

 

         _Fam._ Plicacea.

 

Ringicula, Desh. A fossil species, front view.

 

Back view of the same.

 

         _Fam._ Turbinacea.

 

Turbo nicobaricus. Chrysostoma, Sw.

 

Trochus Iris. Elenchus, Humph.

 

         _Fam._ Purpurifera.

 

Purpura vexilla. _Gen._ Vexilla, Sw.

 

Priamus. Achatina priamus, Auct. The propriety of placing it in

           this family will depend upon the correctness of the statement

           made by Dr. Beck that this shell is marine, and possesses an

           operculum.

 

Purpura crispata. Polytropa, Sw.

 

Pseudoliva plumbea. Gastridium, Sow.

 

         _Fam._ Canalifera.

 

Fusus longevus. Clavalithes, Sw.

 

---- bulbiformis. Leiostoma, Sw.

 

Pyrella, Sw. Turbinella Spirillus, Auct.

 

Pleurotoma lineata. Tomella, Sw.

 

Pyrula melongena. _Gen._ Myristica, Sw.

 

Murex vitulinus. _Gen._ Vitulina, Sw.

 

Typhis Sowerbii.

 

A brown variety of the same.

 

Typhis Cumingii.

 

         _Fam._ Columellata.

 

Voluta Vexillum. Harpula, Sw.

 

Mitra monodonta. Mitreola, Sw.

 

---- bicolor. Mitrella, Sw.

 

Columbella nitidella. _Gen._ Nitidella, Sw.

 

         _Fam._ Convolutæ.

 

Oliva volutella. _Gen._ Lamprodoma, Sw.

 

---- maura.

 

Cypræa Globulus. _Gen._ Globularia, Sw.

 

---- pulchella, fossil. _Gen._ Cyprædia, Sw.

 

THE END.

 

       *       *       *       *       *

 

 

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