GEOLOGICAL SURVEY 
BRACHIOPODA. 
Orbicula lugubris, Con. 
GASTEROPODA. 
Dentalium dentalis, Lin. Cancellaria reticulata, Lam. 
a politum? Sow. s sp? 
& thallus, Con. Voluta mutabilis, Con. 
Cemoria redimicula, Say, “Junonia, Chemn. 
8 alternata, & Fasciolaria distans, Yam. 
Dispotea rugosa, Brod. e sp. 
Syn.“ costata, Con. Fusus quadricostatus, Say, 
ie corrugata, Brod. “ cinereus, és 
Syn. ramosa, Con. “ —undans, he 
te multilineata, “ “sp? 
us} dumosa, sé Pyrula carica, Gmel. 
Infundibulum depressum, Say, £ canaliculata, Lin. 
Crepidula fornicata, Lin. “ss perversa, Lam. 
WG plana, Say, a spirata, % 
3 costata, Mort. Syn. Fulgur pyruloides, Say, 
cf aculeata, Say, Pyrula Coronatus, Con. 
Serpula granifera, & papyracea, Say, 
Petaloconchus sculpturatus, Ranella caudata, a 
[H. C. Lea. Purpura sp? 
Natica heros, Say, Cassis Hodgii, Con. 
“« — duplicata, < Buccinum porcinum, Say, 
“ _canrena, Lam. i multirugatum, Con. 
“  Carolinensis, Con. s vibex, Say, 
Scalaria clathrus, Say, g trivitatum, iv 
Pyramidella terebellata, ig obsoletum, f 
Eulima, sp? s lunatum, fe 
Terebra dislocata, Say, Columbella avara, 3 
< unilineata, Con. ¥ sp? 
a Carolinensis,  “ Marginella limatula, Con. 
Solarium granulatum? Lam. < sp? 
Trochus philantropus, Say ? Oliva literata, Lam. 
D sp? “ mutica, Say, 
d: sp? Conus Marylandicus, Con. 
ct sp? “« adversarius, % 
Littorina irrorata, Say, “  diluvianus, Green. 
Tunrritella alticosta, Say? Bulla canaliculata, Say, 
a variabilis, Con. Cyprea Carolinensis, Con. 
us spherula, Abe ie pediculus, Lin. 
“ sp? Mitra Carolinensis, | Con. 
Pleurotoma limatula, Con. 
