NORTH AMERICAN CONCHOLOGY. 



405 



Conrad. — Descriptions of new Species of Unio : by T. A. Con- 

 rad. (From same as last, vol. ii, part iv. February, 1854.) 



296 



Locality. 

 Chambers' ford, Ver- 

 digris river, Ark. 

 Missouri. 



Name. 

 TJnio Aberti Conr. 



U. Lamarckianus Lea. 

 hebetatus Conr. 

 rivularis Conr. (TJniomerus), 



U. declivis Conr., non Say. 

 porrectus Conr. Jackson, Miss. 



U. parallelus Conr. (preoc.) 

 arquatus Conr. Wabash river, 



subcroceus Conr. Trib. of Canadian riv., Ark 

 nobilis Conr. Bayou Teche. 



pectitus Conr. Wabash river, 



altus Conr. Tennessee? 



velatus Conr. River St. Fois. 



Conrad. — Synopsis of the Genera Parapholas and Penitella: 

 by T. A. Conrad. (From same as last, p. 335. No descrip- 

 tions.) 



Page. 



335 Parapholas Californica Con. 

 Pholas Californica Conr. 

 Janelli Desh. 

 335 Penitella Conradi Val. 

 Pholas penita Conr. 



concammerata Desh. 



Page. 



335 Penitella tubijera Val. 

 335 xylophaga Val. 

 335 melanura. 



Pholas melanura Sowb. 

 Penitella Wilsoni Conr. 

 [not Parapholas bisulcata. ] 



Adams. — Description of a Species of Haliotis supposed to be 

 new: by C. B. Adams. (From Silliman's Amer. Journ. Sci., 

 n. s., vol. vi, p. 138. July, 1848.) 



Page. 

 138 



Haliotis ponderosa Adams. 



Anonymous. — Conchology. (From the "Naturalist, edited by 

 D. J. Browne, vol. ii. Boston, 1832. With a plate.) 



Page. Date. Title of article. 



65 March, 1832. 



68-73 March, 1832. Explanation of the Parts of Shells. 



