io6 Field Columhian Museu.m — Zoology, Vol. III. 



Heterandria lutzi, sp. nov. 



Type, No. 3718, F. C. M. Length, 2.33 inches. 



Locality, Rio Quiotepec, Cuicatlan, Oaxaca, Mexico. 



Head 4J; depth 3 J; D. 7; A. 8; scales 29-8. Body elongate, 

 rather slender; mouth terminal, jaws equal, giving the head a 

 wedge-shaped appearance; snout 3^ in the head; eye large, 3^ in 

 the head; teeth in one series, conical, curved backward at the 

 tips, movable. Peritoneum black; intestine much convoluted 

 but not in definite coils, its length about i-| times the total 

 length of the body. Modified anal fin of male long, slender, 

 pointed with curved tip, its length 2}^ in length of the bodv; origin 

 of anal in male midway between base of caudal and tip of snout; 

 origin of dorsal slightly behind origin of anal in females, being 

 midway between base of caudal fin and posterior margin of opercle. 

 Base of dorsal 3 in head, height i^; pectoral i^; ventral 2. 



Olivaceous, a narrow dark lateral band broken into small 

 round or oblong spots, generally from 12 to 18 on one side; the 

 small round spots scarcely as large as pupil; iris black, a narrow 

 dark streak on under side of caudal peduncle; a faint vertebral 

 streak, more conspicuous in the young. 



This species differs from //. pleiirospilus in having a lateral 

 band broken into small spots on sides, and the more advanced 

 position of the dorsal fin. This is the only species of Hcierandia 

 known at present from Mexico. 



Longest female, 3.15 inches; longest male, 1-49 inches. Vi- 

 viparous; eggs partly hatcheci; one female, 2.59 inches in length, 

 contained 40 young, each coiled about the yolk, and 26 eggs; a 

 second female 2.15 inches in length contained 11 young and 8 

 eggs. Each of the partially hatched young are .35 of an inch in 

 length. Specimens collected as follows: Oaxaca, May 4; Cui- 

 catlan, May 5; Venta Salada, May 6. The young are evidently 

 deposited about the middle of May. Named for Mr. Frank 

 Eugene Lutz, wdio accompanied me in Mexico as volunteer 

 assistant. Oaxaca; Cuicatlan; Venta Salada. 



Poecila limantouri Jordan & Snyder. 



Intestinal canal elongate., coiled on ventral and right side in 

 about 7 coils; length of intestine about 4^ times total length of 

 the body; peritoneum black. Viviparous; females with eggs, 

 the young not developed; one female 3.06 inches in length with 

 115 eggs; another 2.9 inches in length with 95 eggs. Largest 



