NORTH AMERICAN CONCHOLOGY. 



317 



PI. Fig. 



Crucibiilum imbricatum. 

 Patella scutellata. 

 Cahjpeopsis ruyosa. 

 DyspoUea dentata. 

 Calyptrcea extinctorium 

 Sby. non Lam. 

 ruyosa. 

 Crepidula indorsata. 



var. bilobata. 

 Crucibulum spinosum. 

 Patella Pezlza. 



Calyptrsca tubifera. 

 Cahjpeopsis auriculuta. 



tenuis. 



hispida. 



maculata. 



quiriquina. 



Byroncnsis. 



ruyosa. 



liynaria. 

 Caecum undatum. 

 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. 



58 Notes oil Rangia Cyrenoides. 



Locality. 

 Mobile. 



Rafinescpse. — 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 Raf. (n. g.) 



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



(Wood-cut on page 121.) 



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

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

 No. 4, 1832.) 



Page. 



154 Odatelia Raf. (n. g.) 



154 radiata Raf. 



Unio oriens Lea. 



Page. 



Unio dehiscens Say. 

 Anodonta prelonya Green. 



C. R. A«la>n«. — (In Silliman's Journal, o. s., vol. xliv, No. 2. 

 Jan. -March, 1843.) 



Page. Name. Locality. 



420 Periploma trapezoides Desk. Mobile bay. 



Thrac.ia inequalis. 



