THE NAUTILUS. 51 



the Fox Hills Group (upper ■Missouri) made an exceedingly impor- 

 tant " find." Among the species found by him, was a Cyj/rcea 

 absolutely new to science, and which may turn out to be the oldest 

 Cypreea known to be in existence. The two fossil cypra?as from 

 California (Bayerquei and Mattheivmnii) and the Cyjrrcea (Mortoni) 

 from the New Jersey marl beds are the only species of the family 

 published as belonging to the cretaceous period ; and Prof. Whit- 

 field of New York some time since found a cast of another species 

 (to be described by him) in New Jersey, which he considers to be 

 cretaceous. The stratum (Tejou group) in which the two California 

 species were found, is now considered to be tertiary, and the two 

 New Jersey species may possibly turn out to be tertiary also, and in 

 that case, the sjiecies just found by Mr. Squyer would be the earliest 

 species of the genus Cypraea known. Next month we will describe 

 and figure it more particularly, as we have this month only space 

 enough to note the fact of its discovery, and assign it provisionally 

 a name which we suggest should be Cypixea Sqnyer'd. 



The type shell of the species (only perfect one found) has been 

 forwarded by Mr. Squyer to the Collection of the American Associa- 

 tion of Concholoofists. 



APPEARANCE OF AN ASIATIC ANODONTA IN THE CHINESE 

 MARKETS OF SAN FRANCISCO. 



BY WILLAKD M. WOOD. 



Several weeks ago, I was invited to take lunch at a Chinese 

 restaurant, with Mr. Sue Locke, an interpreter. 



While on the way, this gentleman, who knew I was greatly 

 interested in the study of conchology, informed me that before going 

 to the restaurant, he would show me a new shell which had just been 

 brought from China. Upon this information, I questioned him, and 

 found that it was a fresh-water species. 



After passing through a number of narrow streets, we reached a 

 very small Chinese merchandise store. The first object that 

 attracted my attention, was a medium sized fresh-water aquarium 

 containing a number of gold and silver fish. 



Upon close examination, I found the bottom to be thickly lined 

 with the species Paladina Jajionica Mart., and two varieties of 



