464 CICHLID.E. 



f or nearly J length of head and i to § longest soft ray. Anal IV 7-8. 

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

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

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

 yg^yg. 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. 



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

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

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



Depth of body oj to 4 times in total length, length of head 3 to 3J 

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



Fi^. 316. 



Lamj)rolo<jus conyohnsis. 

 Type. 



eye, which is og 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 f length of head 

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

 last dorsal. Pectoral f to J length of head. Ventral reaching vent 

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



