TREMATOCAAR. 



457 



last dorsal. Pectoral a little longer than head. Ventral not reaching 

 origin of anal. Caudal with deep crescentic notch. Caudal peduncle 

 H times as long as deep. Scales 29-30 | ; lateral line 7-8. Yellow; 

 a hlackish bar across the interorbital region ; dorsal and anal fins with a 

 blackish streak near the edge, which is white. 



Total length 75 millim. 



Lake Tanganyika. 

 1-2. Types. Sumbu. Dr. W. A. Cunnington (C). 



TrtmatWM.ru niyrifrons. 

 Type (Tr. Z. S. 1906). 



Fig. 312. 



Tremalocara unimaculatu m. 

 Type (Tr. Z. S. 1901). 



3. TREMATOCARA UNIMACULATUM. 



Bouleng. Ann. & Mag. N. H. (7) vii. 1901, p. 3, Poiss. Bass. Congo, p. 445 (1901), 

 and Tr. ZooJ. Soc. xvi. 1901, p. 155, pi. xviii. fig. 3 ; Pellegr. Mem. Soc. 

 Zool. France, xvi. 1904, p. 366 ; Bouleng. Tr. Zool. Soc. xvii. 1906, p. 570. 



Depth of body 3 to 3| times in total length, length of head 2| to 2| 

 times. Head 2-| times as long as broad ; snout as long as broad, with 



