7. HAPT,OCTni,TTS. 317 



more developed than the latter. Sides with ten or twelve broad, 

 well-defined, vertical, dark bars, nearly as broad as their interspaces. 

 Dorsal with a large black spot posteriorly, and immediately anterior 

 to it a white one. The other fins immaculate. (^Baird.) 

 New Jersey. 



16. Haplochilus chrysotus. 

 D. 9. A. 11. V. 6. L. lat. 34. L. transv. 12. 



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

 caudal), the length of the head two-sevenths. Head depressed an- 

 teriorly, snout shorter than the eye, which is contained thrice and a 

 third in the length of the head, and two-thirds of the width of the 

 interorbital space. The origin of the dorsal fin is midway between 

 the extremity of the caudal and the eye, corresponding to about the 

 twenty-second scale of the lateral line and the fifth ray of the anal. 

 Pectoral fin extending to ventral, ventral fin to vent ; anal and dorsal 

 not reaching the caudal, if laid backwards. Light-olive-coloured, 

 with narrow dark vertical streaks on the sides of trunk and tail ; 

 caudal with transverse bands of brown dots. 



Charleston. 



The description is taken from specimens, Ig and 2 inches long, in 

 the Liverpool Free Public Museiim, marked with a manuscript name 

 " Fumhdus chrysotus, Holbrook." Of course it is impossible to know 

 whether the specimens described are identical with those for which 

 Holbrook intended this name ; but it must be retained now for the 

 species first described, of which the tyjiical examples are in the 

 Museum mentioned. 



17. Haplochilus brasiliensis. 



Fundulus brasiliensis, Valenc. in Humh. Obsero. Zool. ii. p. 1G3, pi. 52. 

 fig. 2; Cuv. 4- Val. xviii. p. 199. 



B. 5. D. 8. A. 11. V. 5. L. lat. 31. 



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

 caudal), the length of the head two-sevenths. The origin of the 

 dorsal fin is midway between the extremity of the caudal and the eye, 

 and somewhat behind that of the anal. Caudal fin lanceolate. 

 Dorsal and anal somewhat elevated, the middle ra3-s of the latter 

 being considerably longer than the anterior ones. The lower 2)art of 

 the tail, between ventral and caudal, with nine or ten black cross bars. 

 Dorsal fin with some black dots, the other fins immaculate. {Val.) 



Brazil. 



18. Haplochilus melanopleurus. 



Tickiticky. 



PcEcilia melapleura, Gosse. Nat. Soj. Jam. p. 84, pi. 1. fig. 3. 



D. 11. A. 11. V. 5. L. lat. 31. L. transv. 10. 

 The height of the body is contained thrice and one-third in the 

 total length (without caudal) ; the length of the head thrice and 

 two-thirds. Snout broad and obtuse, the mandible being directed 



