114 Fretp Museum or Naturat History — Zoétocy, Vor. X. 
Priapichthys by the large black caudal spot. 
Parismina (28), 37 to 55 mm. 
Priapichthys olomina sp. nov. 
Gambusta terrabensts Meek (not Regan), Pub. Field Mus., Zodl. 
Ser., vl, 1907, 146 (Las Cafias, Alajuela, Costa Rica). 
Type No. 7827, F. M. N. H.; length 50 mm.; Orotina, Costa Rica. 
Head 3.7 to 4.0; depth 3.2 to 3.3; D. 9 or 10; A. 8 or 9; scales 28. 
Body robust; top of head flat; snout equal to or shorter than eye, 
its length 3.3 to 3.7 in head; diameter of eye 3.0 to 3.6; interorbital 1.7 
to 1.8; pectoral not reaching ventrals, 1.3 in head; depth of caudal 
peduncle 1.5 in head; anal fin of male reaching 24 distance to caudal 
fin, its length 4 in body. 
Greenish olive, edges of scales black; side with a row of small quad- 
rate spots which disappear in some large examples; posterior % of 
body with narrow vertical bars, interradial membranes of dorsal black; _ 
anal with a black blotch at base of anterior 5 rays extending to tip of 
third ray; caudal sometimes with a black bar near its tip. 
This species is very abundant in the valley of the Rio Grande de 
TArcoles. 
Orotina, April 20 (135), 25 to 50 mm.; Turrubales (3), 40 to 50 mm.; 
Pacaca (3), 26 to 48 mm. (Alfaro); Pacific Side (16), 20 to 60 mm. 
(Alfaro). 
Priapicthys annectens (Regan). 
Gambusia annectens Regan, Ann. & Mag. Nat. Hist., 1907, 259 
(Carillo, Juan Vifias and Irazui, Costa Rica);— Regan, Biol. 
Cent. Amer., 1907, 97, pl. x1v, figs. 5 and 6 (Carillo, Juan Vifias 
and Irazi, Costa Rica);— Meek, Pub. Field Mus., Zodél. Ser., 
vu, 1907, 145 (Turrialba; San José; Quebrada de los Negros; 
San Isidro; Pacific Side). 
Priapichthys annectens Regan, Ann. & Mag. Nat. Hist., 1913, 992 
(Costa Rica). 
This species is more abundant in the streams about San José than 
any of the species of fishes found there. 
Rio Maria Aguilar (16), 32 to 60 mm. (Alfaro); San José (27), 26 
to 49 mm. (Alfaro); Quebrada de los Negros (24), 35 to 62 mm. (Alfaro); 
San Isidro (2), 43 mm. (Alfaro); Tucurrique (5), 38 to 60 mm. (Alfaro) ; 
Tobosi (2), 30 mm. (Alfaro); San José, April 26 (180), 30 to 70 mm.; 
