93. EMBlbTOCIDiE — MICROMETRUS. 589 



spines rather high, some of the middle ones highest, the ])osterior not 

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

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

 conic. Vertebr.ie (in M. offgregattis) 15 + 20; in M. frenatus 13 -|- 21. 

 Species of small size and bright coloration, [iiupoz^ small ; iJ.erfxiqj 

 measure, i. e., small size.) 



a. Lower lip with a freuuiu. {BrachijiHtius* Gill.) 



926. M. freiiiaCus (Gill) J. & G. 



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

 head and a long caudal itednncle; protile much depressed over the ejes, 

 the snout projecting. Mouth very 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 

 si)ot at base, followed by a light mark; below bright light coppery- 

 red; each scale with a blue spot and dark pnnctulatious; 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. 



{Brachyisttus frenatus Gill, Proc. Acad. Nat. Sci. Pbila. 1882, 275: Brachi/isthis fre- 

 Ttatus Jordan & Gilbert, Proc. U. S. Nat. Mus. 1880, 304 : Ditrcma brevijiinne Giintlicr, iv, 



248.) 



927. in. rosaccus Jordan «fe Gilbert. 



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

 occiput convex, 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 comi>ara- 

 tively large, little obli(pie, the lower jaw included; maxillary slightly pass- 

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

 level with the inferior margin of the pupil. Eye very large, its diameter 

 about one-thiid 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 thelength of the highest ; the sixth to tenth 

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

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



*Gill, Proc, Acad. Nat. Sci. Pbila. 18G2, 275: type Bmchnistiiis frciiaius Gill. 

 {ftpaxvi, abort; idviov, sail.) 



