OF FISHES FEOM LAKE TANG-ANYIKA. 569 



apparently full-sized females, with eggs in the mouth. A few eggs, measuring 

 4 millim. in diameter, are still in the pharynx. 



Dorsal XIII 5; AnalIIIlO-11; Scales 37-38 ^^ ; Lateral lines ?g|; 17 gill-rakers 



on lower part of anterior arch. Vertebrae 36 (17 + 19). 



This genus was established for two species, M. descampsi and E. melanogenys. The 

 second differs, hoAvever, in having the inner rays of the ventral fin longest and the 

 caudal vertebrae much more numerous than the prsecaudals, characters which it shares 

 with Xenotilapia ; whilst in the first the outer soft rays of the ventral are, as usual, the 

 longest, and the caudal vertebrae do not differ much in number from the prsecaudals. 

 I therefore propose a new genus, Enantiopus, for E. melanogenys and its near ally 

 E. longianalis. 



60. Enantiopus melanogenys Blgr. 



Two specimens, 70-75 millim. long, from Kigoma. Native name: Mulunda, 

 Dorsal XIV 15 ; Anal III 13 ; Scales 40 g_^; Lateral lines ff=g ; 11 or 12 gill-rakers 

 on lower part of anterior arch. 



61. Enantiopus longianalis Blgr. 



Three specimens from Mbete, native name Kieta ; two from Moliro, native name 

 Karonda ; one from Rumonge and one from Sumbua. The last two, females, carrying 

 eggs in the pharynx. These specimens measure 100 to 135 millim. 



Dorsal XIV 16-17 ; Anal III 16-17 ; Scales 40-42 | ; Lateral lines |§=|; 12 or 13 

 gill-rakers on lower part of anterior arch. 



The number of rays in the anal fin is quite sufficient for separating this species from 

 the preceding. 



62. Xenotilapia sima Blgr. 



Two specimens, measuring 130 millim., from Niamkolo. Native name : Mtununu. 



25-26 



Dorsal XIV 14; Anal III 11; Scales 37-38 ^^; Lateral lines 24-28; 10 or 11 gill 



n-16 



rakers on lower part of anterior arch. Dr. Cunnington describes the colour as delicate 

 brownish above, silvery below ; head dark above. 



63. Geammatoteia lemaieii Blgr. 



Two specimens from Niamkolo, native name Mendi, and one from Kasawa, native 

 name Lungi. These specimens measure from 130 to 210 millim. ^^^^ 



Dorsal XV 14-15 ; Anallll-IV 10-11 ; Scales 52-55 jg^; Lateral lines 24^; 10 or 



O— D 



11 gill-rakers on lower part of anterior arch. Dr. Cunnington describes the colour 

 as uniform grey or delicate brownish above, silvery below ; opalescent blues below 

 VOL. XVII. — PAET VI. No. 5. — October, 1906. 4g 



