130 THE CYFRINODONTS. 



longitudinal band more distinct and possessed in addition a narrower band 

 along the entire lower edge of the body to the caudal. Back violet brown ; 

 bands separated by j^ellowish. A brownish band around the lower jaw 

 toward the eye. Dagana, Senegal. (Steindachner.) 



Apart from the red markings of the scales, which belong to the sexually 

 mature or the nuptial season, there seems to be little reason for the separa- 

 tion of H. chaperi, from freshwater in the lagoon " d'Assinie, a Couacrou," 

 in the gold coast region. 



Haplochilus Marnoi Steind., 1881, Sb. Ak. Wien, 198. 



D. 8 ; A. 14-15 ; V. 6 ; LI. c. 27 ; Ltr. 8i. 



This apparently is a variety of H. senegalensis. The locality given is Bahr 

 el Seraf and Bahr el Gebel. 



Haplochilus bifasciatus Steind., 1881, Sb. Ak. Wien, 199. 



D. 6-7 ; A. 15 ; V. 6 ; LI. 28 ; Ltr. 1\. 



The differences by which this form is distinguished from the preceding 

 are mainly in the coloration : it has a couple of streaks of brown from the 

 orbit to the base of the caudal and another from the lower edge of the base 

 of the pectoral along the base of the anal and the lower edge of the caudal. 

 I am inclined to place it as a variety of H. senegalensis with H. Mamoi from 

 the same locality. 



Haplochilus Petersii. 



Haplochilus Petersii Sauv., 1882, Bull. Soc. Zool. de France, 324, pi. 5, fig. 6. 



D. 7 ; A. 14 ; LI. 32. 



Depth six and two thirds, and bead five times and a half in the total 

 length. Head depressed ; snout flat, as long as the eye. Lower jaw longer 

 than upper. Eye little more than three times, and interorbital space little 

 less than twice in the length of the head. Dorsal origin half way from eye to 

 end of caudal, above the middle of the anal, or the twenty-first scale of the 

 lateral line. Ventrals reaching the anal, not reached by the pectorals. Dor- 

 sal and anal not reaching the caudal. Caudal as long as the head, rounded. 



Brownish yellow, edges of scales darker With eight vertical streaks of 

 darker crossing the flanks. Caudal puncticulate ; anal and dorsal greyish ; 

 ventrals whitish; pectorals slightly clouded. 



" Lagune d'Assinie, a Couacrou," Western Africa. (Sauvage.) 



