228 



BIBLIOGRAPHY OP 



[part II. 



211 



213 

 214 



Name. 



Petricola pholadiformis Lam. 

 P. fornicata Say. 

 Peruviana Jay. 

 dactylus Sowh. 

 ventricosa Desk. 



Locality. 

 Canada, &c. 



North America. 

 Gulf of California. 



Part II. Petricoladas (contiuued) and Corbiculadas, 1854. 



Page. Name. 



254 Cyrena Carolinen,sis. 



Cyclas Caroliniana Bosc. 

 Polymeroda Caroliniana Kaf. 



255 sordida Hani. 



255 insignis Desk. 



256 subquadrata Desh. 



257 Floridana Conr. 



260 Mexicana Br. ^- Sowh. 



264 , Sphaerium Steenbuchii {Cyclas) Moll. 



265 simile. 



Ct/clas si7nilis Say. 

 sulcata Lam. 

 Sarratogea Lam. 



266 partumeia. 



Cyclas partumeia Say. 



cornea (var. 2, 3) Lam, 

 266 dubium. 



Cyclas dubia Say. 



266 rhomboideum. 



Cyclas rhomboidea Say. 



267 stramineum. 



Cyclas straminea Conr. 

 267 transversum. 



Cyclas transversa Say. 

 267 giganteum. 



Cyclas gigantea Prime. 

 267 emarginatum. 



Cyclas emarginata Prime. 



267 tenuistriatum. 



Cyclas cornea Ad. 



tenuistriata Prime. 



268 ponderosum. 



Cyclas ponderosa Prime. 

 268 cardissa. 



Cyclas cardissa Prime. 



Locality. 

 South Carolina. 



North America. 



Gulf of California. 



California. 



Mazatlan and Florida. 



Near Mexico. 



Greenland. 



North America. 



North America. 



North America. 

 Lake Champlain, &c. 

 Alabama. 

 Kentucky. 

 Pennsylvania. 

 Lake Superior. 

 Tennessee river. 



Lake Superior. 

 Massachusetts. 



