DESCRIPTION OF EVERMANNIA, A NEW GENUS OF 

 GOBIOID FISHES. 



BY DAVID STARR JORDAN. 



The species of fish described by Jordan and Gilbert 

 from Mazatlan, under the name of Gohiosoma zostcriLruni 

 (Proc. U. S. Nat. Mus. 1881, 361) seems to be the type 

 of a tlistinct L;onus. allied to Gobiosoma, but distinguished 

 by its slender body and especially b}" its short first dorsal 

 which contains but four spines, the anterior being fil- 

 amentous. For this genus I propose the name of 

 EvERMANNiA, in liouor of my former student and later 

 scientific associate, Dr. Barton Warren Evermann, now 

 ichthyologist of the II. S. Fish Commission, in recogni- 

 tion of his work on the fishes of the Gulf of California. 

 The genus Evermannia may be thus defined: 



Evermannia Jordan, gen. nov. Gobiida^: type Gohio- 

 soiiKi ::o>li'niriini , Jordan and Gilbert. 



Body slender, compressed behind, entirely naked. 

 Head long, slender. Snout rather pointed; mouth mod- 

 erate, terminal, the maxillary not produced backward; 

 teeth small and slender, the outer above slightly en- 

 laro-ed. Skull with a small median crest, not much 

 widened behind. Interorbital space yery narrow, chan- 

 nelled ; no dermal fiaps on shoulder girdle ; first dorsal 

 of four spines, one of them in tlie male ending in a long- 

 filament. Second dorsal and anal moderate. Caudal 

 lanceolate. \"entrals formed as in Gobius and Gobio- 

 soTna. Size small, the sexes not colored alike, the male 

 with the tins with black stripes and white edgings. 



The single known species is abundant in the estuary 

 at JMazatlan, living in holes in sand and mud between 

 tide marks. It reaches a length of less than two inches. 



3d Ser., Vol. IV. April 8, 1895. 



