100 



cm THE TOPO&EAPIIY AND GEOLOGY 



LIVING. 



LIVING. 



GENERA. 



O ^ 



6 



Diacria 



Balantium 



Styliola 



PlaiioiLella 



Atlanta 



Miuex 



Tro]ilio)i 



IMiiricidea 



Typhis 



Fusus 



lleiaifusus 



Melougeua 



Metula 



Metulella 



Turris 



Glypliostoma. . . 



Cordiera 



Borsonia 



Mangelia 



Tritonium 



Distortio , 



Bursa 



Phos 



Nassaria 



Ectraclieliza... . 



C'ycloiJS 



C'uma , 



llarpa , 



Oliva 



Plochelasa 



Faseiolaria. . . . , 



Latirus 



Turbiiiella 



Vasuni 



Lageiia 



Scapha 



Lyria 



Mitia 



Maiginella .... 



Stronibina 



Cassis 



Cassidaria 



Cyprascassis . . . 



C^assidea 



Morum 



Malea 



Ficus 



Natica 



Mammilla 



Am aura 



Soalaria 



Terebra... 



Obelisciis 



Ringicula 



Turbonilla .... 

 Anriculina. . . . 



Aclis 



Eulima 



Meiiestlio. .... 



Niso 



lopsis 



Arcliitectouica. 



Everywlicre 1. 



1 W. C, Africa. 

 1 ? Pacilic. 



(1 ? West Indies. 



1 North America. 

 1 " 



Torinia. 



Conus. 



Strombus. . . 

 Orthaulax . . 

 Dolophanes. 



Cyprfea .... 



Pustularia 



Caneellaria 



Cerithiuni 



Cerithidea 



Triforis 



Bittium 



Modulus 



Turritella 



Vermetus 



Petaloconchus . . 



Csecum 



Onustus 



Phorus 



C'rucibuluui . . .. 

 Trochita. . . . . . . 



Cypta 



Capulus 



Neritina , 



Eutropia 



Turbo , 



Astralium 



Cyclostrema. . . . 



Adeorbis 



Umbonium. ... 



Calliostoma 



Omphalius .... 



Margarita 



Lucapina 



Dentalium .... 



Gadus r 



Scurria 



Nacella 



Actason 



Actaeonidea 



Cyliclina 



Cyliclinella . . . 



Tomatiua 



Volvula 



Bulla 



Martesia 



Kuphus 



Ilocellaria 



Siliqua 



Bothrocorbula. 



Corbula 



Neajroniya 



Neaira 



Pandora 



Mactrella 



Raeta 



Tellina 



Strigilla 



Tcllidora 



( 1 loc. ? 



( 1 Miocene Europe. 



( 1 Pacific. 



( 1 Atlantic and Pacific. 

 1 Pacific. 



1 U. S. 



1 fossil U. S. 



1 



=1 



1. u. s. 



1 also fossil iuEng- 

 land. 



1 U. S. 

 1 N. A. 

 1 S. A. 



