NORTH AMERICAN CONCHOLOGY. 



3TT 



[Proceedings of the Acad, of Nat. Sci. of Philad. — continued.] 



Vol. Pa 



Name. 



251 TJnio ligamentinus Lam. 

 U. fasciolus Conr., not 

 Raf. 

 multiradiatus Lea. 

 251 limatulus Conr. 



U. Tuomeyi Lea. [rid.") 

 251 lineolatus Raf. (Obtiqua- 

 U. depressa Raf., not 

 securis Lea. [Lam. 

 251 luridus Lea. 



251 luteolus Lam. [Barnes. 

 U. siliquoideus Conr., 



infiatus Barnes. 

 Lampsilis siliquoideus 



252 lugubris Lea. [Stimp. 

 252 maculatus Conr. 



U. Ravenelianus Lea. 

 252 Masoni Conr. 

 2S2 moestus Lea. 



merus Lea. 

 252 Menkianus Lea. 

 metallicus Sag. 

 U. euprinus Lea. 

 252 metanever Raf. 



U. melanevrus Say. 

 nodosus Barnes. 

 rugosus? Barnes. 

 metanever Lea. 

 252 minor Lea. 

 252 Mississipiensis Conr. 

 252 Mortoni Conr. 



U. turgidus Lea. 

 252 Muhlfeidianus Lea. 

 252 Monroensis Lea. 

 252 Moussianus Lea. 

 252 Nashvillianus Lea. 

 252 nasutus Say. 



Mya nasuta Wood. 

 U. rostratus Valenc. 

 Eurinea nasuta Agas. 

 252 nebulosus Conr. 

 neglectus Lea. 



252 nexus *SVxy. 

 U. aTcaeform.it Lea. 



nervosus Raf. 

 U. zig-zag Lea. 

 donaeiformis. 



253 nigellus Lea. 

 253 niger Raf. 



U. incrassatus Lea. 

 gibber? Lea. 

 253 nigerrimus Lea. 

 253 nigrinus Lea. 

 253 nitens Lea. 



Vol. Ta. 



253 TJnio nodiferus Conr. 



U. prasinus Lea, not Con. 

 253 nodulatus Raf. 



U. pustulatus Lea. 

 253 notatus Lea. 

 253 Novi-Eboraci Lea. 

 253 nucleopsis Conr. 

 253 nexus Say. 



U. arcaeformis Lea. 

 253 notatus Lea. 



U. simus Lea. 

 253 obliquus Lam, 



U. obliquus Fer. 



ebenus Lea. [Barn. 

 undatus Desh, not 

 myliloides? Swains.. 

 not Raf. \_quaria). 

 obliquatus Raf. (Obli- 

 U. ridibundus Say. 

 sulcatus Lea. 

 253 obovalis Raf. 



U. solidus Lea. 

 253 obtusus Lea. 



253 occidentalis Conr. 



254 ochraceus Say. [List. 

 Pectunculus fluviatilus 

 Hfytilusflui'iatilusGmtsl. 

 Symphy. ochracea Lea. 

 U. ochraceus Conr. 



rosaceus? Conr., not 

 olivarius Raf. [De Kay 

 U. ellipsis Lea. 

 254 Ogeecheensis Conr. 



54 oratus Conr. 

 254 orbiculatus Llild. 

 U. abruptus Say. 

 crassus Conr. 

 254 ovatus Say. [Barnes. 

 U. ventrieosus Desh., not 

 subovatus Desh., not 

 Lea. 

 oecidens? Desh., not 

 254 oviformis Conr. [Lea 

 254 pallescens Lea. 

 254 paliatus Lea. 

 254 paludicolor Gould. 

 251 papyraceus Gould. 

 254 parvus Barnes. 

 254 paulus Lea. 

 54 pectorosus Conr. 

 U. perdix Lea. 



Iiiaui/ulatus Lea. 

 254 pellucidus Lea. 

 254 penitus Conr. 



