276 CICDLID^E. 



longest dorsal. Tectoral as long as head. Ventral reacLing vent or 

 origin of anal. Caudal truncate. Caudal peduncle as long as deep. 

 Scales feebly denticulate, 31-36 j^^ ; lateral lines '^■. Olive above ; 

 whitish beneath, young with 9 or 10 more or less distinct darker bars 

 on the body ; gill-membranes sometimes black, or with black spots ; 

 fins greyish, dorsal with a black border, sometimes with a dark brown 

 band in addition; anal sometimes with a bright ocellar spot. 

 Total length 195 millira. 

 Lake Tanganyika. 



1-4. Tvpes. Ujiji. E. CooJo Hore, Es<|. (C). 



5. Ad. Msamlju. Prof. J. E. S. Moore (C). 



t;. Hot. Sumbu. Dr. W. A. (.!uniilngton (C). 



7. Ad. Vua. 



8. Ad. Pembe. „ 



9-11. Ad. & Yg. Kinyamkolo. Prof. J. E. S. Moore (C). 



12-17. Ad. & hgr. Niamkolo. Dr. W. A. Ciiumington (0.). 



l.S. Skel. „ „ 



r.. TROPHEUS. 



Bouleng. Tr. Zool. Soc. xv. 1898, p. 17, and Pois:-. Bass. Congo, p. 449 (1901) ; 

 PcUegr. Mem. Soc. Zool. France, xvi. 1904, p. 30.5. 



Body moderately elongate ; scales denticulate ; two incomplete lateral 

 lines. Jaws angularly bent at the sides, with bands of very small 

 tricuspid teeth, and an outer row of bicuspid teeth ; sides of the prse- 

 maxillaries with a series of abruptly differentiated conical teeth ; mouth 

 nearly straight and transverse when closed ; maxillary concealed under 

 the prseorbital. Dorsal with 20 or 21 spines, anal with 4 to 6. 

 Occipital and parietal crests strong, extending to between the orbits. 

 VertebrEe 33 (17 + 16). 



Lake Tanganyika. 



Two species : — 



D. XX-XXI 5-6 ; A. V-VI 5-6 ; Sc. 30-32 ~. 1. T. moorii, Blgr., p. 276. 

 D. XX 5-6 ; A. IV 6-7 ; Sc. 28-30 ~. . . . 2. 7. annectens, Blgr., p. 278. 



1. TROPHEUS MOORII. 

 Bouleng. Tr. Zool. Soc. xv. 1898, p. 18, pi. v. fig. 2, and Poiss. Bass. (Jongo, 

 p. 449 (1901) ; Pellegr. Mom. Soc. Zool. France, xvi. 1904, p. 305, pi. vii. 

 f^^^ 2. 



Depth of body 2^ to 2f times in total length, length of head 31 to 



