96 IIAPLOMI. 



5. Gambusia nicaragueiisis. 



Gamhusia nicaragueiisis, Guntli. Cat. Pish. vi. p. 336 (186G) ', and Traus. Zool. Soc. vi. 1868, p. 483, 



t. 82. fig. 3-; Jord. & Everm. Bull. U.S. Nat. Mus. xlvii. 1896, p. 682'. 

 Paragambusia nicaraguensis, Meek, Publ. Columbian Mus., Zool. v. 1904, p. 133 \ 



Depth of body 2| to Zh in the length, length of licad 3^ to 3J. Snout shorter than eye, the diameter of which 

 is 2i to 3 in the length of head. Interorbital width about equal to the distance from middle of eye to 

 free edge of operctilum. 28 to 30 scales in a longitudinal series. Dorsal 7-8 ; origin nearer to posterior 

 end of caudal fin than to tip of snout ; free edge of the fin straight. Anal 10-11, pointed, with concave 

 free edge, ending below the origin of dorsal. Pectoral nearly as long as the head. Caudal rounded. 

 Least depth of caudal peduncle |- to ^ the length of head. Olivaceous : a small dark spot at the base of 

 each scale on the upper part of the body ; dorsal and caudal with series of small dark spots. 



Hah. Southern Mexico and Central America : 



Mexico, Boca del Rio ■*, Otopa ■*, El Hule \ Obispo *, and Perez ^ in Vera Cruz ; 

 Nicaragua, Lake Nicaragua i - {JJoiv). 



Here described from several specimens measuring up to 55 mm. in total length, the 

 types of the species from Lake Nicaragua and examples from El Hule, received from 

 Dr. Meek. 



6. Gambusia infans. 



Gambusia infatis, Woolman, Bull. U.S. Fish. Comm. 1894, p. 62, t. 2. fig. 3 ' ; Jord. & Everm. 



Bull. U.S. Nat. Mus. xlvii. 1896, p. 680' ; Meek, Publ. Columbiaa Mus., Zool. v. 1904, 



p. 131, fig. 38'. 

 Gainbusia gracilis, Meek, t. c. p. 130 '. 



Deptli of body '3\ to 3^ in the length, length of head 4 to 44. Snout nearly as long as or shorter than eye, 

 the diameter of which is 3 to 3| in the length of head. Interorbital width about equal to the distance 

 from middle of eye to free edge of operculum. 20 to 31 scales in a longitudinal series. Dorsal 8-9 ; 

 origin usually nearer to posterior end of caudal than to tip of snout; free edge of fin slightly convex. 

 Anal 9-10, pointed, ending below anterior rays of dorsal. Pectoral -4 the length of head. Caudal 

 rounded or subtruncate. Least deirth of caudal peduncle -j to ^ the length of head. Olivaceous ; scales 

 with narrow dark edges ; often a dark stripe from operculum to cairdal. 



Hah. Mexico, Rio Lerma and Rio Balsas: 



Salamanca ^ ; Celaya 2; Ocotlan ^ ; La Barca^; Huingo ^ ; Yautepec "^j Cuautla*; 

 Puente de Ixtla ■* ; Jojutla * ; Chietla ^ ; Balsas *. 



Here described from several specimens, measuring up to 50 mm. in total length, from 

 Salamanca ( Woolman), Celaya and Puente de Ixtla [Meek). A male of 25 mm. is 

 marked with dark vertical bars. 



7. Gambusia episcopi. 



Gambusia episcopi, Steind. Sitzungsb. Ak. Wien, Ixxvii. 1878, p. 387, t. 2. figs. 3 & 4 '. 



Hah. Panama i. 



