March, 1914. List of Fishes of Costa Rica — Meek. 113 



Alfaro Meek, Pub. Field Mus., Zool. Ser., x, (September) 191 2, 72 

 (type Alfaro aciUiventralis Meek). 



Petalurichthys Regan, Ann. & Mag. Nat. Hist., (November) 191 2, 

 494 (substitute for Petalosa preoccupied in Coleoptera). 



This paper by Regan, in which he first estabHshed the genus Petalosa, 

 was overlooked by me in preparing an account of the new species 

 collected by myself in Costa Rica in 191 2, which resulted in my pro- 

 posing the name Alfaro for this peculiar and interesting form. This 

 name, however, preceded the substitute proposed by Mr. Regan after 

 he discovered that Petalosa was preoccupied in Coleoptera. 



Alfaro cultratum (Regan). 



Petalosa cultratum Regan, Ann. & Mag. Nat. Hist., 1908, 458 (Rio 



Iroquois, Costa Rica). 

 Alfaro acutiventralis Meek, Pub. Field Mus., Zool. Ser., x, 191 2, 72 



(Guapilis, Costa Rica). 

 Petalurichthys cultratum Regan, Ann. & Mag. Nat. Hist., 191 2, 494 



(name only). 

 Alfaro cultratum Regan, Ann. & Mag. Nat. Hist., 1913, 981 (Costa 



Rica). 

 Taken only among the rocks in clear rocky streams. One other 

 species of this genus is known from Brazil. 



Guapilis (38), 30 to 80 mm.; Parismina (36), 45 to 80 mm.; La Junta 

 (9), 35 to 70 mm.; Virginia (15), 45 to 80 mm. 



Priapichthys turrubarensis (Meek). 



Gamhusia turrubarensis Meek, Pub. Field Mus., Zool. Ser., x, 191 2, 



71 (Turrubales, Costa Rica). 

 Priapichthys turrubarensis Regan, Ann. & Mag. Nat. Hist., 1913, 



992. 

 Very abundant. 



Orotina, April 22 (65), 25 to 65 mm.; Turrubales (89), 30 to 70 mm.; 

 Jesus Maria (37), 30 to 70 mm.; Rio Higueron (48), 45 to 60 mm, 

 (Alfaro). 



Priapichthys parismina (Meek). 



Gambusia parismina Meek, Pub. Field Mus., Zool. Ser., x, 191 2, 71 



(Parismina) . 

 Priapichthys parismina Regan, Ann. & Mag. Nat. Hist., 1913, 992. 

 This species is easily distinguished from the other Costa Rica 



