PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 363 



at base of caudal, and a broader oue towards tip, the fin sometimes 

 entirely black, pectorals somewhat barred; lower fins plain. 



This species is represented in our collection by four specimens, each 

 about 1^ inches long, taken from a deep tide-pool at Mazatlan. 



30. Salarias chiostictus, sp. nov. (28117.) 



Body moderately elongate, compressed, the head short, blunt, almost 

 globular, about as broad as deep, and a little longer than broad. Mouth 

 inferior, without lateral cleft, the lower jaw included; width of cleft of 

 mouth two-thirds length of head. Teeth small, weak, finely pectinate; 

 canine teeth small, not so long as diameter of pupil. Supraorbital 

 cirrus divided in four, its height three-fourths that of the eye. Eye 3^ 

 in head. Interorbital space channelled, narrower than eye. Maxillary 

 extending to behind middle of eye. No crest on top of head. First 

 dorsal low and even, its spines rather slender, the last spines short, 

 scarcely connected by membrane with the soft rays ; soft dorsal well 

 separated from caudal. Caudal subtruncate, with rounded angles. 

 Anal lower than soft dorsal, with a little longer base. Pectorals a little 

 longer than head; ventrals about half as long. 



Head 4:^ in length; depth 5^; D. XII-15 ; A. 15. 



Color in life: Olive brown above, lighter below; five broad dark bars 

 from dorsal fin to middle of sides, each terminating above on the fin, and 

 below on sides in a pair of black spots ; sometimes onlj^ the spots are dis- 

 tinguishable, the bars being obscure; sides below spinous dorsal with 

 numerous black specks, and with numerous oblong spots of bright sil- 

 very; sometimes a silvery streak from upper i^ortion of base of pec- 

 torals to base of caudal; a broad salmon-colored streak on each side 

 of ventral line; sometimes the space between the silvery lateral band 

 and the base of the anal is darker, the vertical bars again appearing as 

 pairs of black, vertical blotches. Head yellowish olive, darker above 

 and reticulated with narrow brown lines, these appearing as parallel 

 bars on the upper lip and radiating from the median line on the under 

 side of the head. Vertical fins light grayish, with black spots, which 

 appear as wavy bars on the caudal tin. Pectorals and ventrals pale, 

 the former with a yellowish shade at base. Orbital tentacles bright 

 ted. 



This species is known from four specimens (the largest 2^ inches in 

 length), taken in a deep rock pool at Mazatlan. 



31. Fierasfer arenicola, sp. uov. (29244.) 



Body with nape slightly elevated, thence tapering regularly to the 

 tail. Snout blunt, rounded, jirotruding ; the mouth subinferior, nearly 

 horizontal, large, the lower jaw included ; gape wide, the maxillary one- 

 half length of head, extending beyond the vertical from orbit; teeth in 

 upper jaw very small, acute, in a narrow band, none of them enlarged; 

 those in lower jaw and on vomer blunt, conic, in a wide band; those in 

 outer series acute; a few on each side of mandible, and two or three 

 anteriorly on vomer enlarged, canine-like. 



