NOETH AMERICAN CONCHOLOGY. 



405 



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

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



Page. 



Plate. 



Fig. Name. 



Locality. 



295 



XX vi 



1 Unio Aberti Conr. 



Chambers' ford, Ver- 







U. Lamar chianus Lea. 



digris river, Ark. 



296 



xxvi 



5 hebetatus Conr. 



Missouri. 



296 





rivularis Conr. (TTniome: 



rus), 



296 



U. declivis Conr., non Say. 

 porrectus Conr. Jackson, Miss. 



U. parallelus Conr. (preoc.) 



297 



xxvi 



8 



arquatus Conr. 





Wabash, river. 



297 



xxvii 



1 



subcroceus Conr. 



Trib. 



of Canadian riv., Ark 



297 



xxvii 



2,3 



nobilis Conr. 





Bayou Teche. 



297 



xxvii 



4 



pectitus Conr. 





Wabash river. 



298 



xxvii 



5 



altus Conr. 





Tennessee? 



298 



xxvii 



6 



velatus Coir. 





River St. Fois. 



Conrad. — Synopsis of the Genera Parapholas and Penitella: 

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

 tions.) 



335 Parapholas Californica Con. 

 Pliolas Californica Conr. 

 Junelli Desh. 

 335 Penitella Conradi Val. 

 Pholas penita Conr. 



concammerala Desh. 



Page. 

 335 

 335 

 335 



Penitella tubijera Val. 

 zylophaga Val. 

 melanura. 



Pholas melanura Sowb. 

 Penitella Wilsoni Conr._ 

 [not Parapholas bisulcata.l 



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. 



