448 



CICHLID.E. 



Inner rays of ventrals tbe longest. Occipitnl and parietal crests very 

 low, extending to between the orbits. Vertebrae 38 (l4-|-24). 



Lake Tanganyika. 



Two species : — 



Depth of body 5 to 5| times in total length; 



snout with straight or slightly convex 



upper profile; Sc. 40-44 y^j^^ 1. E. melanocfeti)/s, B]gv., ii. 4:4:S. 



Depth of body 4.\ times in total length ; ?nout 



with strongly curved upper profile ; Sc. 



3«-4() '^ 2. I'J. ovhrogemjs, Blgr., p. 441). 



Fia-. 300. 



Enantiopus mdanogenys. 

 Male and female (Tr. Z. S. 1899 and 1901). 



1. ENANTIOPUS MELANOGENYS. 



luiodits ivekviogeinjs, Bouleng. Tr. Zool. Soc. xv. 1898, p. 21, fig., 1889, p. 91, 



1)1. xix. fig. 3, Ann. Mus. Congo, Zool. i. p. 145, pi. liv. fig. 3 (1900), Poiss. 



Bjiss. Congo, p. 439 (1901), and Tr. Zool. Soc. xvi. 1901, p. 154, pi. xix. 



fig. 4 ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 3G8. 

 Edodvs lo)i<jianalis, Bouleng. Tr. Zool. Soc. xv. 1899, p. 91, pi. xix. fig. 4, Ann. 



Mus. Congo, Zool. i. p. 145, fig. 4, and Poiss. Bass. C-ongo, j). 439. 

 Knanliopvs melanogenys, Bouleng. Tr. Zool. Soc. xvii. 1906, p. 5G9. 

 Enantiopus longianalis, Bouleng. 1. c. 



Depth of body 5 to 5^ times in total length, length of head 3 to 

 o^ times. Head 2 to 2^^ times as long as broad ; snout with straight or 

 slightly convex upper profile, a little lunger than broad, l^- (young) to 



