49. CYPRINODONTIDJi POECILIA. 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 Mollien, French minister of finance, a patron of 

 Peron, the friend and scientific associate of Le Sueur.) 



567. M. latipinna. Le Sueur.* 



Body short and deep, compressed. Eye equal to snout, 3^ in head, 2 

 in interorbital space. Inner teeth almost obsolete; outer series large, 

 freely movable. Dorsal fin in the males greatly elevated, in the females 

 moderate. 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 ^ with 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 3|; depth 3^. B. 5; D. 13 ; A. 7; scales 27-8. L. 2 J mches. 

 Florida to Mexico; abundant in streams of the lowlands. 



(Le Sueur, Journ. Acad. Nat. Sci. Phila. 1821, ii, 3; Glinthcr, vi, 348: Pocdlia multi- 

 lineata Le Sueur, 1. c. 4 : Foecilia Uneolata Grd. U. S. Mex. Bound. Surv. Iclith. 70 : 

 Limia poecilioidcs Grd-JJ. S. Mex. Bound. Surv. Ichtli. 70: Limia matamorensis Grd. 

 Proc. Acad. Nat. Sci. Phila. 1859, 116.) 



103.— PffiCILiIA Bloch & Schneider. 



CLimia Poey.) 



(Bloch & Schneider, Systema Ichthyologise, 1801, 452 : ty^ie rosciUa 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 difFcrent in the two sexes. Olivaceous, 

 scales with hrown spots ; dorsal fin with transverse series of blackish spots ; other 

 fins immaculate. Head 3^ ; dojith 3^. D. 12; A. 10. Palo Alto, Mexico. (Girard.) 



(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. {Giinther.) 



(GUuther, Ann. Mag. Nat. Hist, xiv, 370, 1874.) 



I 



