106 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. III. 



Heterandria lutzi, sp. nov. 



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



Locality, Rio Quiotepec, Cuicatlan, Oaxaca, Mexico. 



Head 4'; depth 3$; 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, 

 pointeei with curved tip, its length 2.^ in length of the body; 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 ii; pectoral i^; ventral 2. 



Olivaceous, a narrow dark lateral band broken into small 

 round or oblong spots, generally from 12 to 1 8 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 //. pleurospilus 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 Hcterandia 

 know r n at present from Mexico. 



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

 viparous; eggs partly hatched; 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 n 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, who 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 

 1 15 eggs: another 2.9 inches in length with 95 eggs. Largest 



