■J(] 



Cl. V. N°* 5g et 60. 



* Mya rugulosa , Wood. 

 undulata, Say, Barn. 



U. varicosa, Lam. 



17. hians, Valenc 



U. glabratus, Sowerby. 



Mya. undulata, Wood, Sup. 

 monodonta, Say'{Hnio) (8). 



U. soleniformis , Lea. 

 confragosa, Say, Conrad. 



* ambigua , Say. 



* ponderosum, Raf. Lasmigona. 



* rugosum , id. id. 



* sulcatum, id. id. 



* viridis , id. id. 



* atropurpureum.id. Decurambis. 



* badium, id. Sulcularia. 



* papyraceum, id. id. 



* sculptilis , Say, Conrad. 



* radiata , Conrad. 

 dubia, Say. (9). 



U. Hildrethianus, Lea. 



margaritifera , Linné (Mya). 

 Margaritana fluviatilis, Sch. 

 U. elongata, Lam., Mich. 

 U. Roissyi, Mich. 

 Alasm. arcuata, Barn. 



Ravenelliana , Lea , (Margari- 

 tana.) 



Ukio. - 



parvus, Barn. 



* Glans, Lea (parvus? Say). 



* Lens, fjea. 



(lœvigalus, selon Conrad ;sub- 

 rotundus , selon Say.) 

 suborbiculatus , Lam. (10). 



U. rotundata, Lam. 



U. globulus, Say. 



U. subglobosus , Lea. 

 tetralasmus, Say. 

 lanceolatus , Lea. 

 declivis, Say. (11). 



U. geometricus , Lea. 

 subrostratus , Say. 



(an U. nasulus?) 

 nasutus, Say, Barn. 



U. rostrata, Y alenc. 



Mya nasuta, Wood. 

 complanatus, Soland., Dihv. 



(»)■ 

 / V . violaceus, Spengl. 



U. purpureus , Say, Barn., 



U. coarctata , Lam. 



(d'après son exempl.). 



U. purpurascens, id. id. 



V '. rhombula , id. id. 



U. carinifera , id. id. 



U. georgina f ià. id. 



U. sulcidens , id. id. 



U. glabrala, id. id. 



U. rarisulcata? \à. id. 



U. fliwiatilis, Green? 



U. aurata , Raf. ( d'après 

 Conrad ). 

 congarœus, Lea. 

 augustatus, Lea^ 

 subtentus, Say. 

 Carolinianus , Bosc. 



obesus, Lea. 

 camptodon, Say. 



( an Carolinianus ? ) 

 heterodon, Lea. 

 Iris, Lea (i3). 



{subrostratus, selon Say.) 

 Calceolus , t.ea (i4). 



(s4lasm.marginata,sel<mSay. 

 truncata Say , selon Conr.) 

 purpuratus, Lam. 



U. ventricosa , Soland. 



U. lugubris , Say. 



U. a ter, Lea. 

 fasciolus, Raf. (son ex.) (i5). 



subovatus , Lea. (id.) 



(Cardium, var., selon Say et 



Conrad). 

 jun. multiradiatus , Lea, Con- 

 rad. 



(fasciolus , Raf., selon Say.) 

 ovatus, Say, Lam., Raf, Barn. 

 ochraceus, Say, Conrad (16). 



Symphyn. ochracea , Lea. 

 ventricQSus, Barn. (17). 



U. Cardium, Say, Conrad. 

 Cardium, Raf., Say (18). 



ventricosus, Var, Barn. 



Occidens, Lea. 



ovatus, var., b, Lam. 

 * capax , Green, Conrad (19). 



(Cardium, var., selon Say.) 

 cariosus, Say, Lam. , Barn . ( 20) . 



luteola, Lam. (d'après son 

 exempl. ). 



