1889.] 



NATURAL SCIENCES OF PHILADELPHIA. 



255 



Etymology. Lat. trans, beyond ; montanus, mountain. 



This species is the common sturgeon on the Pacific Coast of North 

 America. Its size and distribution are the same as that of A. 

 medirostris ; it is however much more abundant. They run up the 

 larger rivers in great numbers in the spring for the purpose of 

 spawning. It is one of the most common food fishes in the San 

 Francisco markets, always abundant and cheap. The meat is 

 usually smoked, and caviare is made from the eggs. 



The specimens examined by us were taken by Jordan and Gilbert 

 at San Francisco. 



List of Nominal Species with Identification. 



Tenable names are in Italics. 



Nominal species. 

 Acipenser sturio Linnaeus 

 Acipenser lichtensteini Bloch & Schneider 

 Sturio vulgaris Rafinesque 

 Acipenser sturio oxyrhynchus Mitchill 

 Acipenser oxyrhynchus Mitchill 

 Acipenser rubicundus Le Sueur 

 Acipenser brevirostrum Le Sueur 

 Acipenser maculosus Le Sueur 

 Acipenser platorhynchus Rafinesque 



Acipenser serotinus Rafinesque 

 Acipenser ohiensis Rafinesque 

 Acipenser macrostomus Rafinesque 

 Dinectus truncatus Rafinesque 

 Acipenser attilus Gray 

 Acipenser cataphractus Gray 



Scaphirhynchus rafinesquii Heckel 



Acipenser alutensis Fitz. and Heck. 



Acipenser transmontanus Richardson 



Acipenser rupertianus Richardson 

 Acipenser latirostris Parnell 

 Acipenser hospitus Kroyer 



