464 CICHLID.E. 



|- or nearly \ length of head and \ to § longest soft ray. Anal IV 7-8. 

 Pectoral \ length of head. Ventral produced into a filament, reaching 

 origin of anal. Caudal rounded. Caudal peduncle 1^- times as long 



Q 



as deep. Scales 47-53 j^, very small on nape and belly ; lateral lines 



29-32 



yo^jg. Brown, with five darker transverse bands ; a blackish opercular 

 spot; fins brown, dorsal edged with white and with the lappets behind 

 the spines sometimes black ; small and light spots on the soft dorsal 

 and caudal, sometimes also on the anal. 



Total length 120 millim. 



Lake Tanganyika. — Type in Congo Museum, Tervueren. 

 1. One of the types. Vua. Dr. L. Stappers (C). 



4. LAMPROLOGUS CONGOLENSIS. 



Schilth. Tijdschr. Nederl. Dierk. Ver. (2) iii. 1891, p. 85, pi. vi. fig. 1 ; Bouleng. 

 Proc. Zool. Soc. 1898, p. 134, and Poiss. Bass. Congo, p. 402 (1901) ; 

 Pellegr. Mem. Soc. Zool. France, xvi. 1904, p. 291. 



Depth of body 3^ to 4 times in total length, length of head 3 to Z\ 

 times. Head 2 to 1\ times as long as broad ; snout a little longer than 



Fig. 316. 



Lamprologiis congolensvs. 

 Type. 



eye, which is 3£ to 4 times in length of head and equals or a little 

 exceeds interorbital width ; mouth extending to below anterior border 

 of eye ; 6 to 10 canines in front of each jaw, followed by a band of 

 minute teeth ; lateral teeth small ; cheek naked. Gill-rakers short, 

 9 or 10 on lower part of anterior arch. Dorsal XVIII-XIX 8-10 ; 

 spines increasing in length to the last, which measures •§■ length of head 

 and about | longest soft rays. Anal VI- VII 5-6 ; last spine as long as 

 last dorsal. Pectoral § to £ length of head. Ventral reaching vent 

 or origin of anal. Caudal rounded, subacuminate. Caudal peduncle as 



