158 



\i:\Y SPECIES OF FISHES, GULF OF CALIFORNIA. 



The dorsal fin begins in front of the anterior margin of the upper 

 eye, the first three rays growing from the blind side, the distance of the 

 origin from the snout being seven times in the length of head. Fin rays 

 all simple 



The anal fin begins on a vertical through the axilla at a distance from 

 the snont 0.8 in the head; its greatest height is 2.3 in head. 



The two pectorals are nearly equal, the one on the colored side being 

 slightly lunger, its length 1.9 in head, its distance from snout 0.8 in 

 hc.id, the insertion less than one-third the distance below the lateral 

 line. The rays on colored side, 9; on blind side, 8. 



The ventrals are 2.3 in head, their origin from snont nearly equaling 

 the head. 



Caudal rounded; caudal peduncle short, its depth 8 in the body, 

 equaling the height of the anal. 



Scales large, ciliated, tolerably uniform, those towards the head and 

 the margins of the disk becoming smaller, the largest scales about 

 equaling the diameter of the eye. 



Lateral line simple, gradually descending along the course of about 

 16 scales, from which point it is straight. 



Color light brown, with about 15 irregular dark blotches of various 

 si/.es, the largest being a pair on the latter third of the disc, one on each 

 side of the lateral line, as great in diameter as the length of the ventral tin. 



One specimen, 20 cm in length, was caught in the bay at Guaymas. 



This species is dedicated to Prof. Charles H. Gilbert, whose collection, 

 and notes on fishes from Mazatlan, containing undescribed species, this 

 among them, was destroyed by fire in 1883. 



Measurements. 



Length of body in base of ( audal .. 



Depth i>i body 



Thickness of hody . 



Depth of caudal peduncle 



J.i ngth of head 



Depth ofhead 



Thickness of head 



Interorbital space 



Snout 



Tip of snout to end of maxillary 



Ej e from front t<> back. 



n ii 



II, ight 



I tistance ol origin from suont . 



Anal tin 



Beight 



hi ni orign from snout. . 



Pectoral tin 



i M igic "i pectoral from snout 



Ventral So 



Origin of right ventral from snont 



July 2, L888. 



*$£»\ln»*j. 



200 

 105 

 11 

 25 



r.-! 



52 



10 



3 



11 



24 



10 



1.9 



11.8 



8 



3.5 



4 

 20 



In head; 



5 



2.25 



5.4 



2. r 



2. !fi 



.t:j 

 1.9 



.!> 

 2.5 



O. P. Jenkins, 



Greencastle, Ind. 



B. W. EVERMANN, 



Terre Haute, Inch 



