84 



MAirCTA-L OF THE MOLLUSCA. 



XVII. CAHIEBEAlsr Proviis'cb. 



The Grulf of Mexico, the West Indian Islands, and the eastern 

 coast of South America, as far as Eio, form, the fourth great 

 tropical region of marine life. The number of shells is esti- 

 mated by Prof. C. B. Adams at not less than 1500 species. Of 

 these 500 are described by M. D'Orbigny in Eamon de la Sagra's 

 History of Cuba, and a small number of the Brazilian species 

 in the same author's Travels in South America. A list of the 

 Barbadoes shells has been given by Sir E. Schomburgk. 



The coasts of the Antilles, Bermuda, and Brazil, are fringed 

 with coral reefs, and there are considerable banks of gulf- weed 

 at some distance from the coast of the Antilles. 



West India Sheila. 



Argonauta. 



Ommastrephes. Cleodora. 



Cheletropis. 



Octopus. 



Sepioteutlus. Creseis. 



lantliina. 



Philonexis, 



Sepia 



Cuvieria. 



Glaucus. 



Loligo. 



Spirula. • Atlanta. 



Kotarchus Plei 



Cranchia. 



Hyalea. Oxygryus. 



Aplysia. 



Onychoteulhis. 









Strombus gigas. 



Clavatula zebra. 



Hipponys mitmla. 



pugilis. 





Margin ella. 



Pileopsis militaris. 



Mui'ex calcitrapa. 





Erato Maugerise. 



Calyptraea equestris. 



Pisania articulata. 





Cypr^a mus. 



Crepidula aculeata. 



„ turbinella. 





„ exantiiema. 



Patella leucopleura. 



Triton pilearis. 





„ spurca, &G. 



Chiton sqtiamosus. 



„ cutaceus. 





Trivia pediculus. 



Hydatina physis. 



Fusus morio. 





Ovulum gibbosum. 





Easciolaria tulija. 





Natica caurena. 



Boucliardia tulipa. 



Lagena ocellata. 





Pyramidella dolabrata. 



Discina antillarum. 



Cancellaria reticulata 





Plan axis nucleus. 





Fulgur axuanum. 





Littorina zic-zac. 



Placunomia foliata. 



Terebra acicularis. 





„ flava. 



Plicatula cristata. 



Myristica melongena 





„ lineolata. 



Lima scabra. 



Purpura patula. 





Tectaria muiicata. 



Mytilus exustus. 



„ deltoidea. 





Modulus lenticularis. 



Lithodomus dactylus. 



Oniscia oniscus. 





Fossarus. 



Area Americana. 



Cassis tuberosa. 





Truncatella caribbsea. 



Yoldia tellinoides. 



„ flammea. 





Torinia cylindracea. 



Cliama arcinella. 



„ Madagascarien 



sis. 



Turritella exoleta. 



„ macrophylla. 



Columbella mercatoria. 



„ imbricata. 



Carditim Iffivigatum. 



„ nitida, &c 





Trochus pica. 



Lucina tigrina. 



Voluta vespertilio. 





Imperator tuber. 



„ Pennsj'lvanica, 



„ musica. 





„ calcar. 



„ Jamaicensis. 



Oliva brasiliensis. 





Fissurella Listeri. 



Corbis fimbriata. 



„ angulata. 





„ nodosa. 



Coralliophaga. 



„ jaspidea. 





,, Barbadensis. 



CrassateRa. 



„ oryza, &c. 





Nerita. 



Gouldia parva. 



Ancillaria glabrata. 





Neritina. 



Venus papliia. 



Conus varius, &c. 





Hemitonia 8 radiata. 



„ dysera. 



