482 DE. GUNTHER ON THE FISHES OP CENTRAL AMERICA. 



250. FuNDULUS PUNCTATUS. (Plate LXXXIV. fig. 5.) 

 Guuth. Fish. vi. p. 320. 



D. 12. A. 13. V. 6. L. lat. 34. L. transv. 12. 



The height of the body, taken on the level of the base of the pectoral, is two-ninths 

 of the total length (without caudal). Head depressed, its length being one-fourth of 

 the total. Interorbital space very broad, slightly convex, its width being one-half of 

 the length of the head. Snout broad, obtuse, much depressed, with the lower jaw 

 scarcely projecting beyond the upper ; mandible longer than the eye. Upper lip of 

 moderate breadth, not extending to the angle of the mouth. The diameter of the eye 

 is less than the length of the snout, two-ninths of that of the head, and less than one- 

 half of the width of the interorbital space. The origin of the dorsal fin is somewhat 

 nearer to the extremity of the caudal than to the orbit, and corresponds to the nine- 

 teenth scale of the lateral line. The first anal ray is opposite to the third of the dorsal. 

 Dorsal and anal fins subquadrangular, with the outer margins convex : both are a little 

 longer than high. Caudal fin subtruncate, scaly on its basal half. Pectoral fins shorter 

 than the head without snout, not extending to the base of the ventrals. Brownish 

 olive, paler below, each scale, especially those on the tail, with a vertical dark purplish 

 violet spot on the centre. Dorsal with three or four series of blackish dots, anal with 

 a whitish margin. 



A single male, 3| inches long, was obtained by Mr. Salvin at Chiapam. 



251. FuNDULUS GUATEMALENSis. (Plate LXXXIV. figs. 3 & 4.) 

 Giinth. Fish. vi. p. 331. 



D. 12 (13). A. 14-15 (16). L. lat. 32-35. L. transv. 12. 



The height of the body, taken on the level of the base of the pectoral, equals the 

 length of the head, and is one-fourth or rather more than one-fourth of the total length 

 (without caudal). Head thick and broad ; interorbital space broad, slightly convex, its 

 width being a little less than one-half of the length of the head. Snout broad, obtuse, 

 with the lower jaw slightly projecting beyond the upper ; mandible longer than the eye. 

 The diameter of the eye is equal to, or, in the larger specimens, less than the length of 

 the snout, one-fourth of that of the head, and one-half of the width of the interorbital 

 space. The origin of the dorsal fin is midway between the extremity of the caudal and 

 the posterior margin of the orbit, and corresponds to the nineteenth scale of the lateral 

 line. The first anal ray corresponds to the second of the dorsal. Dorsal and anal fins 

 subquadrangular, rather low, longer than high in the male, and as long as high in the 

 female. Two-thirds of caudal covered with small scales. Brown above and on the 

 sides, pale below; females mth a very indistinct dark band along the side. Fins 

 immaculate ; anal with a light margin. 



The sexual opening of the female is not attached to the anterior anal rays 



