93. EMBIOTOCIDJE MICROMETRUS. 589 



spines rather high, some of the middle oues highest, the posterior not 

 so high as the soft rays ; the soft dorsal shortened. Anal moderate, 

 with weak spines. Caudal forked. Pharyngeals normal, the teeth all 

 conic. Vertebrae (in M. aggregates) 15 + 20; in If. frenatus 13 + 21. 

 Species of small size and bright coloration, (fuxpo^ small; versus, 

 measure, i. e., small size.) 



o. Lower lip with a freiium. ( Brachyistius * Gill. ) 



926. Itt. fresiatus (Gill) J. & G. 



Body elongate, compressed, regularly elliptical, with a slender pointed 

 head and a long caudal peduncle; profile much depressed over the eyes, 

 the snout projecting. Mouth A T ery small, oblique, maxillary not reach- 

 ing orbit. Cheeks with two rows of scales. Dorsal spines very long 

 and rather strong, the sixth and seventh the longest and a little longer 

 tLan the soft rays. Caudal rather deeply forked. Gill-rakers slender, 

 rather long. Color dark olive brown above, each scale with a dark 

 spot at base, followed by a light mark; below bright light coppery- 

 red; each scale with a blue spot and dark puuctulatious; head colored 

 like the body; fins all light reddish. Head 3f ; depth 3. D. VIII, 15; 

 A. Ill, 22; Lat. 1. 40. L. 8 inches. Entire Pacific coast of United 

 States ; locally very abundant. 



(Brachyistius frenatus Gill, Proc. Acad. Nat. Sci. Phila. 1832, 275: Brachyistius fre- 

 natus Jordan & Gilbert, Proc. U. S. Nat. Mus. 1880, 304: Ditrema breviplnne Gunther, iv, 

 248.) 



927. Itl. rosaceus Jordan & Gilbert. 



Bodyobloug-ovate, deepest at the shoulders; the profile thence to the 

 occiput con vex, the occipital and interorbital region considerably depress- 

 ed; body tapering backwards from the shoulders into a short and slender 

 caudal peduncle. Head small, thick, the snout blunt. Mouth compara- 

 tively large, little oblique, the lower jaw included; maxillary slightly pass- 

 ing the vertical from the front of the orbit ; premaxillary anteriorly on a 

 level w r ith the inferior margin of the pupil. Eye very large, its diameter 

 about one-thi. d the length of the head ; interorbital region very broad. 

 Teeth large, conical, truncate at tip, about ^ ; none on the sides of the 

 lower jaw. Scales on the cheeks in three series. Spinous dorsal high, 

 the first spine about two-fifths the length of the highest ; the sixth to tenth 

 of nearly equal height, and higher than the soft rays. Anal fin with the 

 base. oblique, the spines rather strong, and more or less curved. Caudal 



*Gill, Proc. Acad. Nat. Sci. Phila. 1882, 275: type Brachi/istius frenatus Gill. 

 S, short; ttiTiov, sail.) 



