Jordan and Evermaim. — Fishes of North America, 3153 
lOOS (c). XEXEXDUM XALISCOXE, Jordan & Snyder. 
Head -ij; depth 3^; depth of caudal peduncle 61; eye 34 in head; snout 
3; interorhital space If; height of dorsal 61 in length; anal 9; length of 
pectoral 5J; ventral 71; caudal 5; D. 13; A. 14; scales 42, transverse 
series, counting upward and forward from origin of anal, 17 ; on caudal 
peduncle 12. Body thick set, deepest at origin of ventrals, widest at bases 
of pectorals; caudal peduncle deep and long; head large and pointed; 
interorhital space broad, slightly convex; mouth vertical, its width equal 
to length of snout; maxillary very protractile; teeth loosely attached, 
broader at distal ends than at bases, bicuspid, in two rows on each jaw; 
no villiform teeth present ; gill openings extending above base of pectorals 
a distance about equal to diameter of pupil; gill-rakers long, flat, very 
close together, 56 on first arch. Alimentary canal long, in many folds; 
peritoneum black. Dorsal fin inserted posteriorly, first ray simple, closely 
attached to second; edge of fin rounded; anal inserted on a vertical pass- 
ing through the base of fourth dorsal ray, similar to dorsal in shape; 
pectoral and ventral fins rounded; edge of caudal a little convex; basal 
fourth with scales. Scales large, everywhere on body and head, except 
lower jaw and preorbital area; no lateral line. Color plain, dark above, 
light below, the dark color leaving off rather abruptly on the head along 
a line passing through lower edge of eye ; on the body, along a line passing 
from lower edge of base of pectoral to caudal, leaving lower one-fifth of 
caudal peduncle light; faint traces of a dark spot at base of each scale on 
dorsal region of body; all the fins, except ventrals, dusky. Laguna de 
Chapala, Mexico. 
One male individual was taken. It resembles the female in general 
appearance. The anal fin is not advanced nor modified into an intromit- 
tent organ. Although it is injured, it shows that the first 5 or 6 rays were 
close together and shortened. 
Xenenditm xaliscone differs from X. caliente in not having villiform teeth, 
in having more scales in the lateral and transverse series, and on the caudal 
peduncle. It differs from X. luitpoldii (Steiudacliner), which is the third 
known species of the genus, in having a much longer snout, a more pointed 
head, and in not having villiform teeth. (Jordan &. Snyder.) 
Known only from Laguna de Chapala, near Ocotlau, Jalisco, Mexico. 
(Type, a female, No. 6148, L. S. Jr. Univ. Mus. Coll. J. 0. Snyder.) 
(Name from Jalisco, the type locality.) 
Xenendiim xaliscone, Joed.\n & Snyder, Bull. U. .S. Fisli Com. 1899 (1900), 129, Laguna 
de Chapala, Mexico. 
Page 693 . Before MolUenisia, Le Sueur, insert: 
10:J7 ( 11 ). POECILU LIM.tXTOURI, Jonlaii & Snyder. 
Head 34 in length; depth 3; depth of caudal peduncle 4| ; eye 34 in 
head; snout 3; interorhital space 2; height of dorsal 54 in length; anal 
4^; length of pectoral 4^; ventral 6; caudal 34; D. 9; A. 8; scales 26-9, 
8 on caudal petluncle. Body rather dei'p aud compressed; dorsal out- 
line angular, its highest point at insertion of dorsal; lowest point of 
