Jordan and Everman?i. — Fishes of JVorth America. 991 



Jaws, vomer, palatines, tongue, octopterygoids, and eutopterygoids ; lin- 

 gual teeth in 2 patches j pharyngeal teeth pointed. Gill rakers long 

 and strong, compressed, numerous, about 20 in number, some of theui on 

 the upper portion of the arch. Branchiostegals 7. Operculum emargi- 

 nate, the lower point much the larger, striate, the ridges terminating in 

 small spines ; preopercle, interopercle, subopercle, suborbital, and pre- 

 orbital Avith their inferior edges conspicuously serrate ; dentaries and 

 preopercle with large muciferous depressions or pits. Dorsal fin with 

 about 13 spines ; anal usually with 7 spines. Caudal emarginate. Scales 

 strongly ctenoid. California. (ap;j;of, anus ; oTrAm/f, armature.) 



1386. ARCHOPLITES INTERRUPTUS (Girard). 

 (Sacramento Perch.) 



Head 2| ; depth 2+; eye very large, 4 to 5 in head. D. XII or XIII, 10; 

 A. VI or VII, 10 ; scales about 7-40 to 51-14, about 8 series on cheek. 

 l?ody oblong, ovate, compressed, the back considerably elevated ante- 

 riorly, depressed over the eye, the snont projecting at an angle. Mouth 

 terminal, very large, the maxillary very broad, extending beyond pupil. 

 Dorsal spines rather low, strong; anal spines similar; pectoral short, 

 barely reaching aual. Color blackish above, sides silvery, vrith about 7 

 vertical blackish bars, irregular in form and position and more or less 

 interrupted ; body sometimes almost wholly black ; sometimes brassy ; 

 a black opercular spot; fins nearly plain. Length 1 to 2 feet. Sacra- 

 mento and San Joaquin rivers and tributary lakes ; abundant; the only 

 fresh-water Percoid west of the Rocky Mountains; an excellent food- 

 fish, now being exterminated by the carp and catfish, which infest its 

 spawning grounds. (interru2>tus, interrupted.) 



Centrarchts interruplus, Girard, Proc. Ac. Nat. Sci. Phila., 1854, 1211, San Joaquin and Sac- 

 ramento rivers. (Colls. Drs. Hcermanu and Newberry.) 

 Centrarclms maculosus, Ayees, Proc. Cal. Ac. Nat. Sci., i, 1851, 8, Sacramento River. 

 Ambloplites intemtptus, Girard, Pac. B. R. Surv., x, 10, pi. 2, figs. 1-4, 185S; Boulenger, Cat., i, 12. 

 ArcJiopliles intcmqitus, Jordan & Gilbert, Synopsis, 466, 1883; Bollman, 560, pi. 09, fig. 1. 



455. CH^NOBRYTTUS, Gill. 

 (Warmouths.) 



ClimwhrijUus, Gill, Amer. Journ. Sci. Arte, 92, 1864, {mela>iops = (fulosi<s}. 

 GlossoplUcs, Jordan, Manual of Vertebrates, Ed. i, 223, 1876, {melano2)s). 



This genus has the general form and dentition of Ambloplites with 

 the convex opercle, 10 dorsal and 3 anal spines of Lepomis. Preopercle 

 entire. Branchiostegals 6. Caudal fin emarginate. Scales weakly 

 ctenoid. Vertebra) 13-|- 16^29. Posterior processes of the premaxil- 

 laries extending nearly to the frontals ; frontals posteriorly with a 

 transverse ridge connecting the parietal and supraoccipital crest, which 

 are very strong, {xaivu, to yawn ; Bryitus, i. e. Lepomis.) 



