48 THE CYPRINODONTS. 
on the female, or the base of the anal on the male. Caudal deep, as long as 
the head, slightly convex. Scales large. Intestine long. 
Olivaceous to brownish ; back, top of head, and edges of scales darker ; 
belly lighter to silvery ; cheeks silvery toward the throat. A blotch of 
dark on the hindmost anal rays in both sexes. A transverse band of brown 
or brownish near the base of the dorsal, sometimes absent, or lost on very 
dark fins. Anal of male with lower edge blackish. In cases a light band 
across the dorsal separates two dark ones. Caudal and other fins clouded, 
apparently tipped with light color. Some individuals are very dark. The 
young have faint bars or vertical blotches on the flanks. Females of two and 
three quarters, and males of one and three quarters inches. 
Cuba. 
PLATYPCCILUS. 
Platypecilus Gth., 1866, Cat., VI, 350. 
“Cleft of the mouth small, transverse, mandible very short, with the bones 
not united, the dentary being movable. Snout not produced. Both jaws 
with a single series of small, pointed teeth. Scales rather large. Origin of 
the anal fin behind that of the dorsal. Sexes differentiated? Intestinal 
tract with numerous convolutions. Mud eating. Central America. . Although 
we know only the female of this fish we conclude, from its close affinity to 
Peeilia and Mollienisia, that the anal fin.of the male is similarly modified.” 
Platypecilus maculatus. 
Platypecilus maculatus Gth., 1866, Cat., VI, 350; Hig., 1893, P. U.S. Mus., XVI, 57. 
Platypecilus mentalis Gill, 1876, P. Phil. Ac., 335. 
D105 A695 Va6 5 Tl 255 Liras: 
“Body much compressed and elevated, its greatest depth being below the 
origin of the dorsal fin, and contained twice and one third in the total (with- 
out caudal). Head less compressed than the body, the width of the interor- 
bital space being nearly two thirds of the length of the head, which is two 
sevenths of the total (without caudal). The diameter of the eye is more than 
the length of the snout, and one third of the length of the head. The dorsal 
fin is rather large, longer than high, and its origin is a little nearer to the 
root of the caudal than to the extremity of the snout. Anal small, its origin 
being opposite to the middle of the dorsal. Caudal rounded ; the free por- 
