Sept., 191 2. New Fishes from Cost Rica — Meek. 71 



Qatnbusia turrubarensis sp. nov. 



Type No. 7576, F. M. N. H. ; length 61 mm. ; Turrubares, Costa Rica. 



Head 4.0 to 4.3; depth 3.3 to 3.6; D. i, 6 or 7; A. 2, 6 or 7; scales 7-28. 



Body elongate, profile convex; mouth small, with small lateral 

 cleft; outer series of teeth the larger; eye 2.9 to 3.1 in head; snout 4.2 to 

 4.4; pectoral about as long as head; anal fin rounded, its longest rays 

 1.2 to 1.3 in head; origin of dorsal over last rays of anal, its distance to 

 base of caudal 2 or nearly so, in its distance to tip of snout; gill rakers 

 21; caudal peduncle 1.3 to 1.4 in head (in females 55 to 76 mm.) one 

 male (36 mm.) has head 3.9; depth 3.5; eye 2.6; snout 5; modified anal 

 nearly reaching caudal, 2.4 in body, or nearly twice the length of the 

 head. 



Color (both sexes) olivaceous, sides with about 8 or 9 narrow dark 

 bars on anterior three fourths of the body, fins all plain dusky. 



Qambusia parismina sp. nov. 



Type No. 7578, F. M. N. H.; length 52 mm.; Parismina, Costa Rica. 



Head 3.5 to 3.8; depth 4.2 to 4.5; D. i, 6 or 7; A. 2, 7; scales 8-28. 



Body elongate, moderately compressed; top of head flat; mouth 

 small, its gape extending ^ distance to eye; lower jaw slightly the 

 longer; upper jaw protractile; teeth fixed, in bands, the outer the larger; 

 eye 2.6 to 2.7 in head; snout 3.6 to 3.8; gill rakers 12; pectoral 1.2 in 

 head, of 12 rays, slightly below axis of the body; anal long, its first rays 

 longest, their tips beyond tips of last ray when the fin is deflexed, its 

 longest ray 1.3 in head; dorsal small, its margin rounded, its origin 

 behind last anal ray, its distance from caudal 2.3 in its distance from tip 

 of snout; the fin being wholly on posterior third of the body; caudal 

 peduncle 2 in head. • 



Color dark olivaceous, dorsal with 2 faint dark cross bars, a large 

 black spot with light margin at base of caudal; base of anal with a large 

 black spot. 



This species has the general aspect of Rivulus. One female con- 

 tained 13 eggs, some with eye spots and a few with well-formed young. 

 The species is viviparous, but our collection contains no males. 



Poecilia pittieri sp. nov. 



Type No. 7580, F. M. N. H.; length 68 mm.; La Junta, Costa Rica. 



Head 4.1 to 4.4; depth 2.6 to 2.8; D. i, 8; A. 2, 6 or 7; scales 8-28. 



Body robust, compressed; mouth small, the teeth in narrow bands, 

 the outer series the larger; lower jaw weak; mouth small; eye 2,5 to 2.8 

 in head; snout 3.4 to 3.8; pectoral i.o to i.i; dorsal fin in advance of 



