208 



REFERENCE TO PLATES. 



Species. P.aof. 



Area Americana, Gray 179 



Holmesii, Kurtz 179 



i n (■<> ii g in a. Say 179 



PectunculnB pennaceus, Lam 180 



MvtHus edulis Li an 1 v, i 



" 186 



N acuta tenuis, Mont l s o 



pioxiuia, Say ISO 



expani-n, Reeve 181 



iutiata, Hancock 1S1 



delphlnodoulH, Mighela 181 



Leda tenuisulcata, Couth 181 



Jacksonii, Gid 1-2 



rninuta, Fabr L82 



caudata, Donoy 1S2 



a en la, Conr Is2 



liinalula, Say 183 



Bapotilla, GId 183 



nivalis. Cm tli 1S4 



obesa, St imp 1S4 



arctica, Cray. 184 



thraciseformis, Storer l s 4 



ciiM- lensis, Mighela 185 



Mytilns exustun, Linn 186 



hainatiis. Say 186 



Modiula modiolus, Linn 186 



plicatula, Lam 1 s 7 



Carolinensis, Conr I s " 



I n 1 i p a , Linn 187 



Crenella gland til a, Tot ten LBS 



faba, Fabr 189 



nigra, Ki ng 189 



ditscors, Linn 189. 



corrugata, Stimp 189 



lateralis, Say 190 



Drelseena leucopbeta, Conr 190 



Avicula Athuiiira, Lam 191 



Pinna seroinuda. Lam 191 



muricata, Linn 191 



03trea Virginiana, Lister 192 



borealis, Lam 193 



equestris, say 193 



Anomia glabra, Wrrill 194 



aculeata, Gmelin 194 



Pec ten Magellanicua, (imel 190 



Islandlcue, Miill 196 



irrailia us, Lam l!>ii 



dislocalns. Say 196 



ornatus, Lam 197 



nodOBUB. Linn 197 



Lima Beabra, Dilhv 197 



squamosa. Lam 197 



sulculuH, Leach 198 



Plicatula ramosa, Lam L98 



Terebratulina sepientrionalis. Couth 199 



Rhynchonella psittacea, Gmel 199 



Glottidia py rami data, Stimp 200 



THE END 



