SECTION B.] NORTH AMERICAN CONCHOLOGY. 



547 



jCa. — Observations on the genus Unio, &c. &c. (vide p. 433). 

 [The following are the foreign species. — W. G. B.] 

 Obs. 



Ta. A. P. S. 

 Vol. iii. l!-30. 



Pa. 



421 



445 

 456 



Pig. V. 



24 



Vol. iv. 1S34. 



i 35 Remarks on Lamarck's species of Naiades. 



59 



70 



Symphynota bi-alata Lea. 

 cygnea Lea. 



Alytiius cygneus Linn. 

 Anodonta cygneus Lam. 



Unio multistriatus Lea. 



ceeruleus Lea. 



incurvus Lea. 

 Symphynota bilineata Lea. Hoogly r., Hind. 

 Unio olivarius Lea. Burril r., India. 



China. 

 China. 

 R. de la Plata. 



Asia? 

 Europe. 



Brazil. 



Hoogly r., Hind. 



Gibraltar. 



Nicklinianus Lea. 

 Murchisonianus Lea. 

 lacteolus Lea. 



Symphynota Woodiana£ea. China. 



magnifica Lea. 

 Helicina lens Lea. 



pulcherrima Lea. 



virginea Lea. 



He!, striata Lam ? 

 Helix muscarum Lea. 



purpuragula Lea. 



ovum-reguli Lea. 



monodonta Lea. 



cyclostomopsis Lea 



mamiUa Lea. 



diaphana L,ea. 



Himalana Lea. 



vesica I.<a. 



cincta Lea. 



Woodiana Lea. 



globula Lea. 

 Unio parallelopipedon Lea. River Parana. 



emarginatus Lea. 



divaricatus Lea. Egypt. 



Corrianu* Lea. India. 



Grayanus Lea. China. 



China. 



Feejee Islands. 

 Java (Cuba, ii, 

 Java. [69). 



Society Islands. 

 Java Islands. 

 Java Islands. 

 Java Islands. 



Himalaya Bits. 



Java? 



Canton. 

 Canton. 



