APPENDIX C. 
247 
total length (without caudal) the length of the head four times and 
three-fourths. Snout rather pointed : in a specimen fourteen inches 
long it is more than twice as long as the eye; interorhital space 
broadj convex^ its width being contained twice and one-third in the 
length of the head. The lower jaw with about twenty-eight teeth. 
The anal fin extends somewhat beyond the root of the caudal_, if 
laid backwards. Silvery^ back greenish^, sides clouded with blackish; 
dorsal fin with small blackish spots. 
Distichodus engycephalus , Gthr. 
D. 24. A. 13. V. 11. L. lat. 80. L. transv. 14/13. 
The height of the body is contained thrice_, or twice and three- 
fourths_, in the total length (without caudal) the length of the head 
four times and one-third or four times and one-fourth. Snout 
pointed^ compressed; head compressed; the interorbital space is very 
convex_, its width being contained twice and two-thirds in the length 
of the head. The lower jaw with about twenty teeth. The anal 
fin does not extend to the root of the caudal,, if laid backwards. 
Silvery,, sides with four irregular series of round blackish spots^, each 
as large as,, or smaller than,, the eye. Dorsal fin with very indistinct 
spots^ which are partly confiuent. 
This species will be easily recognized by its compressed head. 
Upper Nile. 
Distichodus brevipinnis , Gthr. (Plate III.,, Fig. C.) 
D. 2o. A. 15. V. 11. L. lat. 90. L. transv. 17/23. 
The height of the body is contained twice and two- thirds in the 
