Description of New Illinois Fishes

Abstract

A sunfish of the Xenotis of average proportions, rather thin in front, the dorsal outline before the fin well arched, with a decided depression at the nape. Length 4 inches, depth 2.25 ill length. Color dark, with a purplish tint; sides striped with rows of bronze blotches, one to each scale, about seven rows below the lateral line. Sides of the head in alcoholic specimens with an appearance of irregular lines. Opercular flap large, about two-thirds the length of the eye. bordered above and below, but not posteriorly with pale. Head 2.75 to 2.9 in length: nose 3.9 to 4.25: interorbital space slightly greater than length of eye.—3.4 to 3.75 in head. Mouth normal, moderate; rudimentary maxillary bone minute; upper jaw below the middle of the pupil; maxillary 2.85 to 3.1 in head, scarcely reaching the front of the pupil; lower jaw 2 to 2.4; teeth on vomer, not on palatines.