CYPRINODOXT FISHES. 1013 



Girarcliims cauoanus SteiuJ. Deuksclir. Akad. Wien, xlii. 1880, 

 p. 87, pi. vi. figs. 4, 5. 



Poecilia salvatoris Regan, Ann. Mag. Nat. Hist. (7) xix. 1907, 

 p. 65 ; Biol. Centr.-Amer., Pisces, p. 104, pi. xiv. figs. 2, 3 (1907). 



Poecilia amates Miller, Bull. Amer. Mus. xxiii. 1907, p. 108. 



? Platifpoecllus tropicus Meek, Publ. Columbian Mus., Zool. vii. 

 1907, p." 146. 



Poecilia tenuis Meek, t. c. p. 147. 



Poecilia spilonota Regan, Ann. Mag. Nat. Hist. (8) ii. 1908, 

 p. 460. 



$ . Depth of body 2| to 4 in the length, length of head 3g 

 to 4|. Diameter of eye 3 to 4 in length of head, interorbital 

 width 1| to 2. 25 to 30 scales in a longitudinal series. Dorsal 

 8-11 ; origin equidistant from eye or operculum and base of 

 caudal. Anal 8-10 ; origin below or a little behind that of 

 dorsal. Pectoral as long as or shorter than head. Least depth 

 of caudal peduncle equal to or less than length of head. Dark 

 greenish to pale olivaceous ; edges of scales sometimes darker ; 

 often a dark spot on each scale of side of body ; sometimes nari-ow 

 vertical bars on sides ; dorsal and caudal sometimes immaculate, 

 often with series of small spots, or with a dark basal spot which 

 may extend over most or all of the fin. 



S . Dorsal further forward and more elevated ; spots on sides 

 rarely present, dark cross-bars often distinct. 



Coasts and rivers from Sinai oa to Panama and from Tamau- 

 ■ lipas to Colombia, Venezuela, and the Leeward Islands. 



Numerous examples to 120 mm. in total length, from all parts 

 of the range of the species. 



6. MOLLIENISIA ELONGATA. 



Poecilia elongata Giinth. Cat. Fish. vi. p. 342, and Trans. Zool. 

 Soc. vi. 1869, p. 484, pi. Ixxxv. fig. 2 ; Regan, Biol. Centr.-Amer., 

 Pisces, p. 102 (1907). 



'^.Poecilia cuneata Garman, Mem. Mus. Comp. Zool. xix. 1895, 

 p. 62. 



Panama. 



7. MOLLIENISIA OCCIDBNTALIS. 



Heterandria occidentalis Baird & Girard, Proc. Acad. Philad. 

 1853, p. 390. 



Poecilia occidentalis Garman, Mem. Mus. Comp. Zool. xix. 1895, 

 p. 71 ; Regan, Biol. Centr.-Amer., Pisces, p. 102 (1907). 



Pacific Coast Rivers from Arizona to Jalisco. 



8. MOLLIENTSIA SPILURUS. 



Poecilia spilurus Giinth. Cat. Fish. vi. p, 345 (1866) ; Regan, 

 Biol. Centr.-Amer., Pisces, p. 101 (1907). " 

 Mexico or Central America. 



