448 



CICHLID.E. 



Inner rays of ventrals the longest. Occipital and parietal crests very 

 low, extending to between the orbits. Vertebras 38^(l'4-f 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^jQ 1. E. melanogenys, Blgr., p. 448. 



Depth of body 4J times in total length ; snout 



with slrongly curved upper profile ; Sc. 



",y-4 



38-40 ^ 2. E. ochrogenys, Blgr., p. 449. 



9-10 



Enantiopus melanogenys. 

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



1. ENANTIOPUS MELANOGENYS. 



Ectodus melanogenys, Bouleng. Tr. Zool. Soc. xv. 1898, p. 21, fig., 1889, p. 91, 



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



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



fig. 4 ; Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 368. 

 Ectodus longianalis, Bouleng. Tr. Zool. Soc. xv. 1899, p. 91, pi. xix. fig. 4, Ann. 



Mus. Congo, Zool. i. p. 145, fig. 4, and Poiss. Bass. Congo, p. 439. 

 Enantiopus melanogenys, Bouleng. Tr. Zool. Soc. xvii. 1906, p. 569. 

 Enantiopus longianalis, Bouleng. 1. c. 



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

 3| times. Head 2 to 2+ times as long as broad ; snout with straight or 

 slightly convex upper profile, a little longer than broad, \\ (young) to 



