49. CYPRINODONTIDJi PCECILIA. 
347 
behind the dorsal, the anal of the male being modified into an intromit- 
tent organ; caudal fin alike in the two sexes; dorsal fin highly elevated 
in the male, its base elongate, of twelve or more rays. Intestines elon- 
gate, with numerous convolutions. Small mud-eating fishes, of varie- 
gated colors, found in Cuba, Mexico, and our Southern States. (Dedi- 
cated to Monsieur MolUen^ French minister of finance, a patron of 
Peron, the friend and scientific associate of Le Sueur.) 
567 . Ifl. latipaBioia Le Sueur.* 
Body short and deep, compressed. Eye equal to snout, 3^ in head, 2 
in interorbital sjpace. Inner teeth almost obsolete; outer series large, 
freely movable. Dorsal fin in the males greatly elevated, in the females 
motlerate. Greenish, silvery below; a row of dark spots along each 
series of scales, and the lower part of the trunk also with a series of 
round brown spots; each scale with a silvery hinder margin; dorsal fin 
in $ wit^i 4 or 5 brown lines interrupted by the rays, and with a row of 
vertically ovate spots on its upper half; caudal membrane with black 
dots, the lower half of its hinder margin black. Female less spotted. 
Head 3f; depth 3^. B. 5; D. 13 ; A. 7; scales 27-8. L. 2J inches. 
Florida to Mexico; abundant in streams of the lowlands. 
(Le Sueur, Joum. Acad. Nat. Sci. PMla. 1821, ii, 3; Giintlier, vi, 348: Pocdlia mulU- 
lineata Le Sueur, 1. c. 4 : Poecilia Uneolata Grd. U. S. Mex. Bound. Surv. Iclith. 70: 
Limia pcecilioidea Gvd.JJ. S. Mex. Bound. Surv. Iclith. 70: Limia matamorensis Grd. 
Proc. Acad. Nat. Sci. Phila. 1859, 116.) 
163 . — PtECIlilA Bloch & Schneider. 
(Limia Poey.) 
(Bloch & Schneider, Systema Ichthyologiae, 1801, 452 : type Pcecilia vivipara Bloch & 
Schneider, from Surinam.) 
This genus differs from Mollienesia only in the smaller size of the 
dorsal, which has usually nine or ten rays and is nearly opposite the 
anal in the female, but behind it in the male. The numerous species 
* M. formosa (Grd.) Gthr. 
Body rather stout. Snout short. Fins different in the two sexes. Olivaceous, 
scales with brown spots ; dorsal fin with transverse series of blackish spots ; other 
fins immaculate. Head 3J ; depth 3;^. D. 12; A. 10. Palo Alto, Mexico. (Gb'ard.) 
(Limia formosa Grd. Proc. Acad. Nat. Sci. Phila. 1859, 115; GUnther, vi, 349.) 
M. jonesi Gthr. 
Brownish, each scale with a black margin; a black band between eye and scapula; 
a round black spot on upper half of root of caudal ; anal with a black line along each 
ray ; other fins plain. Eye shorter than snout, 4 in head, 2 in interorbital width. 
Dorsal (in female) much longer than high ; anal small, opposite middle of dorsal. 
D. 12; A. 10; Lat. 1. 29 ; L. transv. 9. Volcanic lake, Huamantla, Mexico. (GUnther.) 
(Gunther, Ann. Mag. Nat. Hist, xiv, 370, 1874.) 
