348 CYPEINODONTID.E. 



a. Mollienesia. 



1. Mollienesia latipinna. 



MoUinesia latipinna, Lesuvur, Journ. Acad. Sc. Philad. 1821, ii. p. .3, 



pi. 3 (male). 

 Mollieiiisia latipina, Cuv. 8; Val. xviii. p. 139, pi. 527 (male, anal tin 



incorrect). 

 Pcecilia multilineata, Lesueur, I. c. p. 4, pi. 1 ; Cuv. Sf Vcd. xviii. p. 134 



(fem.) ; Agass. Sillim. Amer. Journ. 1853, xvi. p. 135, and 1855, 



xix. p. 133. 

 ? Poecilia lineolata, Girard, U. S. i^ 3Ie.v. Bound. Ichihyol. p. 70, pi. 35. 



figs. 9-11, and in Proc. Acad. Nat. Sc. Philad. 1859, p. 114. 



B. 5. D. 14. A. 9 (female). V. 6. L. lat. 30. L. transv. 8. 



The height of the body is a little less than one-third of the total 

 length (without caudal), the length of the head somewhat more than 

 one-foiirth. The diameter of the eye is equal to the length of the 

 snout, two-sevenths of that of the head, and one-half of the width 

 of the interorbital space. The dorsal fin of the male is one-half of 

 the distance between eye and root of the caudal ; in the female it is 

 one-third only. Caudal rounded, without scales. The free portion 

 of the tail is as high as long, and covered by eight longitudinal series. 

 of scales on each side. Lateral line verj' indistinct. Greenish, or 

 brownish green, sUvery below ; a dark line along each series of 

 scales, and the lower part of the trunk with a series of round 

 brownish spots besides. Each scale with a silvery hinder margin. 

 Dorsal fin with four or five brown lines, interrupted by the rays, 

 and with a row of vertically ovate spots on its upper half. Inter- 

 radial membrane of the caudal with black dots ; the lower part of 

 the hind margin black. 



Louisiana, Florida. ? Texas. 



a. Male, 2| inches long. New Orleans. 



h-c. Females : skins in spirits. North America. 



Limia matamorensis, Girard, Proc. Acad. Nat. Sc. PhUad. 1859, 

 p. 116, from Matamoras, is not sufiiciently distinguished from 

 M. latipinna. 



Limia pcedloicles, Girard, U. S. & Mex. Bound. Ichthyol. p. 70, 

 pi. 38. figs. 8-11 (but not figs. 12-14), and Proc. Acad. Nat. Sc. 

 Philad. 1859, p. 115, from Texas. This fish has quite the appear- 

 ance of a young male of M. latipinna ; or it may prove to bo the 

 male of Limia venusta, Girard, U. S. & Mex. Bound. Ichthyol. 

 p. 71, pi. 39. figs. 20-23 =L}tcani a venusta, see p. 310. 



2. Mollienesia petenensis. 



B. 6. D. 15. A. 8-9. L. lat. 30. L. transv. 10. Vert. 17/13. 

 The height of the body is one-third of the total length (without 

 caudal), the length of the head one-fourth or two-ninths. The 

 diameter of the eye is equal to the length of the snout, two-sevenths 

 of that of the head, and rather less than one-half of the width of 

 the interorbital space. The length of the dorsal fin of the male is 



