774 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



each ending in a pore, as in Xiphist^r, but the branches more oblique 

 and less regular. Head short ; crown with a conspicuous fleshy lon- 

 gitudiual crest in the adult; jaws subequal, with conical teeth; villi- 

 Ibrm teeth on vomer and palatines; gill-membranes united, free from 

 the isthmus. Dorsal fin continuous, long aud low, the anterior part 

 composed of sharp spines, which are rather lower than the soft rays; 

 caudal fin rounded, connected with dorsal and anal; anal fin similar to 

 soft dorsal, with 1 or 2 small spines; pectorals small; ventrals wanting. 

 Intestinal canal elongate, with several pyloric cceca. Pacific Ocean. 

 Herbivorous, similar in habits to the species of Xiphister. (^i^/?"?, the 

 Sapajou, a kind of monkey; r/Ouq, fish; in allusion to the "jjeculiar 

 monkey-like" physiognomy as seen from the front.) 



11 SI. C. VBoJaceus (Ayres) Grd. 



Dull olive grayish, mottled with lighter, sometimes reddish tinged; 

 "vertical fins all edged with reddish; cheeks with 3 darker strii)es, 

 edged with i3aler, one downward and backward from the eye, close 

 behind angle of mouth; another above it to root of pectoral; another 

 running upward and backward from the eye, and meeting its fellow 

 over the crest. Maxillary extendiug to or beyond orbit. Dorsal scaly 

 at base; vent nearer suout than base of caudal; i)ectoral two-fifths 

 leugtb of head ; nape midway between dorsal and eye. Head Ci ; 

 depth 6. D. XXIII, 41; A. I, 41. L. 30 inches. San Francisco to 

 Point Concepciou; abundant. 



{Apodiclbtlnjs violaccus GivuvA, Proc. Acad. Nat. Sci. Phila. 18.o4, 150: Cehedichfhys cris- 

 tagalli Ayres, Proc. Cal. Acad. Nat. Sci. i, 58,1855; Girard, U. S. Pac. R. R. Surv. Fish. 

 121; GUnther, iii, 26U.) 



416.— EUMJESOGRAMMUS Gill. 

 (Gill, Proc. Acad. Nat. Sci. Phila. 1864, 210: t.yi)e Clinus ijraxisus Kriiyer.) 



Body comparativel}^ short, the back somewhat arched; mouth rather 

 large, the jaws with villiform teeth; teeth on vomer and palatines. 

 Scales small; lateral line present, median, with one or more accessory 

 branches; pectorals and ventrals w^ell developed. Dorsal moderately 

 high, of spines only, slightly connected with the rounded caudal; gill- 

 openings continued forwards below, the membranes narrowly joined to 

 the isthmus; pyloric cteca present. {sO, well; iJ.i<jo<;^ middle; yfiaixij-Tj 

 line; the longest lateral line being the middle one.) 

 a. Lower lateral line preseait. 

 11§2. E. praecisus (Kriiyer) Gill. 



An ovate, black, white-edged spot between the sixth and tenth dorsal 

 spines. Snout subconical; cleft of mouth slightly oblique; vomerine 



