NORTH AMERICAN CONCHOLOGT. 



317 



PI. Fig. 





PL 



Fig 





Crucibulum imbricatum. 







Calyptrsea tuhifera. 



Patella scutellata. 







Calypeopsis auriculata. 



Calypeopsis rugosa. 







tenuis. 



Dyspotasa dentata. 







hispida. 



Calyptrssa extinctorium 







maculata. 



Sby. non Lam. 







, quiriquina. 



rugosa. 







Byronensis 



Crepidula indorsata. 







rugosa. 



var. bilobata. 







lignaria. 



Crucibulum spinosum. 



ix 



4 



Csecum undatum. 



Patella Peziza. 



ix 



5 



Neritina cassiculum. 



Conrad. — In the Advocate of Science and Annals of Natural 

 History, vol. i, No. 2, September, 1834, Philadelphia. By T. A. 

 Conrad, are — 



Page. Name. Locality. 



58 Notes on Rangia Cyrenoides. Mobile. 



Rafinesqiie. — Conchology: a new Tubular Fresh-water Shell 

 of the Alleghany Mountains: by C. S. Rafinesque. (From 

 Atlantic Journal and Friend of Knowledge, No. 3, page 121. 

 Philadelphia, 1832.) 



Page. Name. Locality. 



122 Psephides II' if. (n. g.) 



122 parodoxa Rnf. Sherman creek, Perry Co., Pa. 



(AVood-cut on page 121.) 



Rafilieisque. — Odatelia: new genus of North American Flu- 

 viatile Bivalve Shells: by C. S. Rafinesque. (From the same, 

 No. 4, 1832.) 



Page. 



Page. 



154 Odatelia Rnf. (n. g.) 



154 radiata Rnf. 



Unio oriens Lea. 



Unto dehiscens Say. 

 Anodonla prelonga Green. 



C B. Aflanifii. — (Tn Silliman's Journal, o. s., vol. xliv. No. 2. 

 Jan. -March, 1843.) 



Page. Namo. Locality. 



420 Periploma trapezoldea Di-sh. Mobile bay. 



Thrucia iiicqnulis. 



