210 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 



Xiphidion.) Ga7ithidcnnis, etc.) when a pfior generic name is of like ety- 

 mology and of nearly tlie same spelling (as Scaphorhynclms^ Xiphidium^ 

 or Acantlwderma). We regard all generic names as different unless 

 originally spelled alike, and the original orthography (misprints aside) 

 is in all cases retained. 



With each species is given its geographical range, so far as known, 

 and a reference to the first description under the specific name adoi)ted 

 by us. The locality following this reference is the type locality of the 

 species. The name in parenthesis following the reference to the generic 

 name is that of the species taken by the describer as the type of the 

 genus. 



At the end of the catalogue of native species will be found a list of 

 the principal introduced species, especially those which have become 

 well established in American waters. 



The authors desire to acknowledge their indebtedness to Dr. Theodore 

 Gill for valuable assistance in various ways in the preparation of tlii ^ 

 catalogue. His wide acquaintance with zoological literature has ena 

 bled them to complete and verify many references which otherwise might 

 have remained incomplete or erroneous. 



Tlumks are also due Mr. Barton A. Bean for assistance in the verifi- 

 cation of references. 



David iSTAiiR Jordan. 

 Barton Warren Evermann. 



Palo Alto, California, May 21, 1896, 



