SECTION B.] NORTH AMERICAN CONCIIOLOGY. 



5S9 



[Annals of New York Lyceum and Panama Shells.] 

 Family Patellidae. 



Ann. P. S. I Ann. P. S. 



Pa. Pa. Pa. Pa. 



465 241 Patella? (sp. hid. a.) 466 242 



466 242 Chiton clathratus live. 467 243 

 466 242 dispar Sowb. 467 243 



Chiton luridus ? Sowb. 

 pulchellus Gray. 

 Stokesii Brod. 



Family ©straeidae. 



468 244 Anomia lampe Gray. 



469 245 tenuis Ad. 



469 245 (sp. ind. a.) 



469 245 Ostrea (sp. ind. «.) 



469 245 



470 246 

 470 246 

 470 246 



Ostrea 



(sp. ind. b.) 



(sp. ind. c.) 

 (sp. ind. d.) 

 (sp. ind. e.) 



Family Pectenidae. 



471 247 Spondylus Lamarckii 

 Chenu. 



471 247 (sp. ind. a.) 



471 247 Pecten inca D'Orb. 

 P. tumidus Sowb. 

 ventricosus Sowb. 



Pecten ventricosus in 

 errata. 

 472 248 Tumbezensis D'Orb. 

 P. aspe.rsus Sowb. 



472 248 Lima angulata Sowb. 



473 249 Pacifica D'Orb. 



L. arcuata Sowb. 



Family Aviculidse. 



473 249 Avicula margaritifera? 1474 250 Ferna (sp. ind. a.) 



474 250 sterna Gould. 1474 250 (sp. ind. b.) 



474 250 Pinna maura Sowb. 



475 251 tuberculosa Sowb. 



475 251 Mytilus (sp.ind. a) 



475 251 Lithodomus (sp. 



ind. a.) 



475 251 Modiolasemifusca?Z/„-. 



Mytilus GuiuensisKust. 



Family Mytilidae. 



476 252 Modiola 



476 252 



476 252 



476 252 



476 252 



477 253 Chama Buddiana Ad 

 477 253 corrugata? Brod. 



Family Cljamidae. 



478 254 Chama echinata Brod. 



Family Arcidae. 



478 254 NuculaElenensis.SW6. ! 479 255 Nucula polita Sh. [Sb. 



479 255 exigua Sowb. 1 4S0 256 Pectunculus assimilis 



