Marcu, 1914. List or Fisnes or Costa Rica — MEEK. II5 
San José, April 19 (100), 28 to 70 mm.; San José, April 18 (150), 30 to 
65 mm.; Parismina (24), 35 to 75 mm.; Guapilis (6), 35 to 45 mm. 
Pseudoxiphophorus terrabensis (Regan). 
Gambusia terrabensis Regan, Ann. & Mag. Nat. Hist., 1907, 260 
(Rio Grande de Térraba);— Regan, Biol. Cent. Amer., 1907, 
97, pl. xu, fig. 7 (Rio Grande de Térraba, Costa Rica). 
Pseudoxiphophorus terrabensis Regan, Ann. & Mag. Nat. Hist., 
1913, 993 (Rio Grande de Térraba, Costa Rica). 
I did not obtain any specimens of this species. 
Brachyrhaphis rhabdophora (Regan). 
Gambusia rhabdophora Regan, Ann. & Mag. Nat. Hist., 1908, 457 
(Volcano of Tenorio, and Rio Grande de Térraba, Costa Rica). 
Brachyrhaphis rhabdophora Regan, Ann. & Mag. Nat. Hist., 1913, 
997 (Costa Rica). 
None of this species was taken by me. 
Brachyrhaphis umbratilis (Meek). 
Gambusta umbratilis Meek, Pub. Field Mus., Zodl. Ser., 1912, 70 
(Guapilis, Costa Rica). 
Virginia (22), 30 to 52.mm.; Guapilis (60), 38 to 49 mm. 
Peeciliopsis retropinna (Regan). 
Pecilia retropinna Regan, Ann. & Mag. Nat. Hist., 1908, 458 
(Boruca, Costa Rica). 
Peciliopsis retropinna Regan, Ann. & Mag. Nat. Hist., 1913, 997 
(Costa Rica). 
No specimens were secured by me. 
Peeciliopsis pittieri (Meek). 
Pacilia pittieri* Meek, Pub. Field Mus., Zodl. Ser., x, 1910, 71 
(La Junta, Costa Rica). 
Peciliopsis pittiert Regan, Ann. & Mag. Nat. Hist., 1914, 997. 
This species was taken in swift rocky streams on the Atlantic side. 
It is not so abundant as the preceding. The long, modified anal of the 
*This species was named for Dr. Henry Pittier, who has done very much to 
advance our knowledge of the natural history of Costa Rica. 
