154 



NEW SPECIES OF FISHES, GULF OF CALIFORNIA. 



raj 8, the base pair. ( 'andal black, with two pale spots at the base and 

 a row of spots across the middle The lining- of the maxillary with 

 bands of black and white. 



This fish differs from 0. punctata Peters, to which it is allied, in the 

 evenly black head, in the presence of a large ocellated spot on the dor- 

 sal tin, and in the coloration of the remaining part of the dorsal, in the 

 coloration of the remaining tins, in the smaller scales, in having a tooth 

 on the vomer and in the shorter maxillary. 



Three specimens were obtained in the bay at Gnaymas. 



Measurements. 



Millime- 

 ters. 



Bodi : 



Li i'-iii ir, base ■>! caudal . 



Depth 



Width behind the head — 

 Head 



Lpngth 



Width 



Depth 



[nterorbital space , 



Tip of snout i" tip <>r maxillary 



Maxillary beyond tin- eve 



Eye ■ 



i loellaced Bpoi on dorsal 



Pectoral tin , 



Ventral tin 



I .It. I.ll lllll' 



10K 



In boily. In head 



4.1 



8.3 



.'!. 

 5.0 

 5.0 

 11.6 

 3.3 



1.25 

 •J. 3 

 3.0 



16. Auchenopterus asper, sp. uov. (Type, No. 39643, U. S. N. M.) 



Head ."> in length to base of caudal (3§ in total); depth, 5i (6£); eye y 

 4? in head. Lateral line, 6—43—7; D. Ill, XXV— 1; A. 11—20. 



Body greatly compressed, head narrow, pointed, snout long, lower 

 jaw slightly the longer ; month a little oblique, cleft moderate, maxibary 

 not reaching nearly to vertical at front of orbit. Teeth in one well- 

 defined outer series and a broken inner one; those in the outer series 

 are strongest and of pretty uniform size, short and broad. Vomerine 

 teeth in a single patch; no palatine teeth. Xo tentacles of any kind 

 about the head. Profile nearly straight from snout to origin of rirst 

 dorsal, but very slightly arched from there to base of caudal fin. 



The scales are rather large, cycloid, about forty-three in a longitudinal 

 series, upon about forty of which pores are well developed; about six 

 rows between the origin of the second dorsal and the lateral line just 

 behind its angle, and about seven from there to middle of ventral sur- 

 face : nine rows from origin of second dorsal to upper limb of opercle; 

 entire head, opercles, and fins naked. 



Lateral line, beginning at upper limb of opercle on a level with the 

 pupil, almost exactly under the middle of the first dorsal fin, and a little 

 more than one-fourth the distance from top of nape to the under side 

 of the throat, a relies gently for seven or eight scales, leaving but one 

 row of scales between it and the first spines of the second dorsal; on 

 the ninth, tenth, and eleventh scales it bears slightly downward until 



