PGECILIA. 103 



Pcecilia hutleri, Jord. Proc. U.S. Nat. Mus. 1888, p. 330'"; Jord. & Everm. t. c. p. 691 "j Meek, 



t. c. p. 151 ■". 

 Po'cilia limantouri, Jord. & Suyd. Bull. U.S. Fish. Comm. 1900, p. 129, fig. 10=" ; Jord. & Everm. 



t. c. p. 3153 (1900) '". 

 PlatypmcilKS nelsoni, Meek, t. c. p. 147, fi<>-. 46 ^\ 

 Pcecilia latipunctata, Meek, t. c. p. 151, fig. 48 '^. 



Depth of body 2| to 3| in the length, length of head 3i (young) to 4^. Snout as long as or shorter than 

 eye, the diameter of which is 3 (young) to 33 in the length of head. Interorbital width equal to the 

 distance from middle or posterior part of eye to free edge of operculum. 26 to 29 scales in a longitudinal 

 series. Dorsal 8-11 ; origin equidistant from tip of snout and middle or posterior part of caudal ( 2 ) ! 

 free edge of the fin more or less convex, the rays usually iui-reasing in length to the middle ones and 

 rapidly decreasing posteriorly. Anal S-10, acutel}' pointed; origin below or a little behind that of the 

 dorsal ( J ). Pectoral as long as or a little shorter than head. Caudal rounded or subtruncate. Least 

 depth of caudal peduncle from | ( 2 ) to as long as the head ( S )■ Olivaceous, edges of scales sometimes 

 darker ; sides often with narrow dark vertical bars, especially in males ; series of dark spots, one on 

 each scale of the side of the body, often present, especially in females ; dorsal and caudal sometimes 

 blackish, with or without pale margins, sometimes pale, usually with several series of small dark spots, 

 which may be absent in females. 



Ilah. Mexico and Central America, extending to Colombia and the Leeward Islands : 

 Mexico, Rio San Juan in Nuevo Leon-"', Rio Conchos'^, Rio Soto Marina^ and 

 Rio Forlon ^ ^o .32 ^^ Tamanlipas, Rio Presidio -^ ''^ in Sinaloa (FoiTer), Los Menores 

 in Jalisco (BuUer), Rio Verde ^ in San Luis Potosi, Vera Cruz ^ ^ =^, Boca del 

 Rio 5 and Rio Papaloapam ^ in Vera Cruz, Orizaba", Puebla (Boucard), Rio 

 Balsas in Guerrero ^ ^^ Tehuantepec ■'', Tequesixtlan (Gadoiv), and San Geronimo''* 

 in Oaxaca, La Esperanza in Chiapas ^ ; Guatemala, Rio Chisoy ^^, Chiapam, 

 Huamuchal, and Lakes Dueiias, Nacasil, and Amatitlan [Salvin) ; Nicaragua, 

 Lake Nicaragua ^^ {l)oio) ; Costa Rica, San Jose {Biolleij) ; Panama '^, Panama -■', 

 Colon 23, and Rio Chagres lo. — Colombia ; CuEAgoA ^^ ; Aeuba 21. 



I have examined a large series of specimens, representing the whole range of the 

 species, measuring up to 100 mm. in total length, including the types of P. ddsofjensis 

 and P. dovii and examples of P. hutleri, P. limantouri, and P. latipunctata received 

 from their describers. Of the last-named I have compared one specimen, from Forlon, 

 received from Dr. Meek, with several from the same locality determined by him 

 as Pcecilia splienops. The lateral series of spots supposed to be characteristic of 

 P. latiimnctata is merely a phase of the peculiar and usually irregular blackish 

 markings which are found on individual specimens of so many Cyprinodont species. 



The specimens figured on Tab. XIII. are : — 



1. One of the types of P. latipunctata, from Forlon. 



2. A female from San Jose, Costa Rica. 



3. A spotted variety from Tequesixtlan. 



4. A female from Puente de Ixtla. 



5. A male from Vera Cruz (typical P. sphenops). 



6. A male from Puebla. 



7. A female from Lake Amatitlan (typical P. mexicana). 



