LAMPEOLOGUS. 473 



longest soft rays -^ to f length of head. Anal V-VI 7-9 ; last spine as 

 long as or a little shorter than last dorsal. Pectoral | length of head. 

 Ventral reaching vent or anal. Caudal truncate. Caudal peduncle 

 li times as long as deep. Scales 85-95 g^; lateral lines fj^. 

 Brown to blackish brown, with lighter mottling ; young with dark 

 spots with a tendency to form cross-bars ; vertical fins dark brown, 

 with small darker or lighter spots. 



Total length 325 millim. 



Lake Tanganyika. 



1. Type. Mbity Rocks. Prof. J. E. S. Moore (C). 



2. Tj'pe. Kinyamkolo. „ 



'^- Ad. Niamkolo, off Mtoudwc Id. Dr. AV. A. Cunningtoii (C.). 



4. Yg. Niamkolo Bay. „ 



5. Hor. Sumbu. 



15. LAMPROLOGUS PLEUROSTIGMA. 

 Bouleng. Rev. Zool. A£r. iii. 1914, p. 443. 



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

 Head 2^ to 2f times as long as broad; snout with convex upper profile, 

 1^ to 1^ diameters of eye, which is 3|^ to 4 times in length of head and 

 equals interorbital width ; chin projecting ; mouth extending to below 

 anterior border of eye ; 4 or 6 very large canines, wide apart, in front of 

 each jaw, followed by a moderately broad band of minute teeth ; lateral 

 teeth small; small scales on the cheek. Gill-rakers rather long, 15-16 

 on lower part of anterior arch. Dorsal XVIII-XIX 10 ; spines 

 increasing in length to the last, which measures f to nearly ^ length of 

 head ; longest soft rays -|- to f length of head. Anal V-VI 8-9 ; last 

 spine f length of head. Pectoral f length of head. Ventral reaching 

 vent. Caudal truncate. Caudal peduncle twice as long as deep. 

 Scales 85-90 2ir^'' lateral lines |^. Brown above, lighter beneath, 

 with darker variegations and an elongate horizontal blackish spot on the 

 side in front of the lower lateral line; a small black opercular spot ; 

 vertical fins brownish, soft dorsal and anal with small darker spots; 

 pectorals yellow; ventrals blackish. 



Total length 150 millim. 



Lake 'J'anganyika.-r-Type in Congo Museum, Tervueren. 

 1. One o£ the types. Kilewa Bay. Dr. L. Stappers ((.'.). 



