466 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
usually with 7 spines. Caudal emarginate. Scales strongly ctenoid. 
California, [apyo:;^ anus; armed.) 
726. A. iiiferrmpfiias (Grd.) Gill. — Sacramento Perch. 
r>ody oblong-ovate^ compressed, the back considerably elevated ante- 
riorly, depressed over the eye, the snout projecting at an angle. Mouth 
terminal, very large, the maxillary very broad, extending beyond pupil. 
Eye very large, 4 to 5 in head. Scales on cheek in about eight series. 
Dorsal spines rather low, strong; anal spines similar. Pectoral short, 
barely reaching anal. Color blackish above, sides silvery, with about 
seven vertical blaeliish bars, irregular in form and position and more or 
less interrupted; a black opercular spot; fins nearly plain. Head 2|; 
depth 24. D. XIII, 10; A. VII, 10; scales about 7-51-14. L. 12 inches. 
Sacramento and San Joaquin rivers; abundant; the only fresh-water 
percoid west of the Eocky Mountains. 
(Ccntrarchns interrupius Girard, Proc. Acad. Nat. Sci. Phila. 1854, 129: Anibloplites 
in Girard, U. S. Pac. R. Ri Surv. Fish. 10: Centrarchus interruptm Giiuther, 
i, 257 : Centrarchus maciilosm Ajres, Proc. Cal. Acad. Nat. Sci. i, 1854, 8.) 
245.— Rafiuesque. 
Eocic Bass. 
(Rafiuesque, Ichth. Oh. 1820, 33: tjpeLejiomis ictheloides li,af.=Bodianus rupestris Raf.) 
Body oblong, moderately elevated, compressed. Mouth large, the 
broad maxillary with a well-developed supplemental bone ; lower jaw 
projecting. Teeth on vomer, iialatines, tongue, and pterygoids ; lingual 
teeth in a single patch ; pharyngeal teeth sharp. Branchiostegals C. 
Opercle ending in 2 flat points ; preopercle serrate at its angle ; other 
membrane bones chiefly entire. Gill-rakers rather long and strong, 
dentate, less than 10 in number, developed only on the lower iiortion 
of the arch. Scales large, somewhat ctenoid. Dorsal fin much more 
developed than the anal fin, with 10 to 11 rather low spines; anal spines 
normally G. Caudal fin emarginate. {app.uq, blunt; 6-?.cz7]c;, armed.) 
727. A. rmpestris (Raf.) Gill. — Common Bode Bass; Red-Eye; Goggle-Eye. 
Body oblong, moderately compressed. Head large, the profile little 
depressed above the eye. Mouth large, the maxillary extending to 
opposite posterior part of pupil. Eye very large, in head. Gill 
rakers few, about 10 developed. Scales ou cheeks in 6 to 8 series; pre- 
opercle serrate near its angle. Color olive green, brassy-tinged, with 
much dark mottling ; the young irregularly barred and blotched with 
black, the adult with a dark spot on each scale, these forming inter- 
