566 Mr. G. A. Eoulengcr on a new Cyprinodont Fish. 



This species is described from two sperimens : one obtained 

 in the Western Province of Southern Nigeria by Mr. A. E. 

 Kitson, and presented by him in 1908 ; the other from Bibi- 

 anaha, Gold Coast, presented by Dr. H. G. F. Spurrell in 

 1912. 



LXXII. — Description of a neiv Cyprinodont Fish from the 

 Sohat River. By G. A. Boulenger, F.R.S. 



(Published b}' permission of tbe Trustees of tbe British Museum.) 



Uaplochilus hlngii. 



Depth of body 3^ to 4 times in total length, length of 

 head 3 to 3| times. Head flat above; snout very short, 

 shorter than eye, which equals postorbital part of head ; 

 mouth directed upwards, lower jaw projecting ; interorbital 

 width 11 to l|r times diameter of eye; prasorbital J to ■§• 

 diameter of eye. Dorsal 6-7, originating If to 2 times as 

 far from eye as from root of caudal, above middle or posterior 

 third of anal ; longest ray about § length of head. Anal 

 11—12. Pectoral about f length of head, extending to beyond 

 base of ventral ; latter small, equally distant from end of 

 snout and from root of caudal. Caudal rounded, as long as 

 or a little longer than head. Caudal peduncle a little longer 

 than deep. 26-27 scales in longitudinal series, 16 round 

 body in front of ventrals. Yellowish, the scales on the sides 

 and back finely edged with brown, the black powdered with 

 brown ; fins whitish, dorsal, anal, and caudal sometimes 

 blackish (males). 



Total length 34 mm. 



This little fish is very closely related to H. schoelleri, Blgr., 

 and //. loati, Blgr. It was discovered in a khor on the 

 Sobat River by Mr. H. H. King, Entomologist to the 

 Sudan Government Department of Education, who lias 

 presented five specimens to the British Museum. 



