LAMPEOLOGUS. 481 



XVIIT-XIX 8 ; spines increasing in length to the last, which measures 

 4 to I length of head; longest soft rays f to | length of head. Anal 

 VII-VIII 7-8 ; last spine as long as longest dorsal. Pectoral f to f 

 length of head. Ventral produced into a filament, extending beyond 

 origin of anal. Caudal rounded. Caudal peduncle deeper than long. 

 Scales 35-38 ^^ ; lateral lines ^-^. Brownish ; caudal peduncle and 

 base of caudal with darker vertical bars ; a black opercular spot ; dorsal 

 and anal edged with blackish. 



Total length 60 millim. 



Lake Tanganyika. — Types in Congo Museum, Tervueren. 

 1-2. Two o£ the types. Tulo. Dr. L. Stappers ((!.). 



21. LAMPROLOGUS CALLIURUS. 

 Boiileng. Tr. Zool. Soc. xvii. 1906, p. 560, pi. xxxv. fig. 5. 



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

 Head twice as long as broad ; snout a little shorter than eye, which is 



Fig. 332. 



Lamjprologus calUurus. 

 Type (Tr. Z. S. 1906). 



3 times in length of head and a little greater than interorbital width ; 

 mouth extending to below anterior border of eye ; 6 or 8 canines in 

 front of each jaw, outer strong, curved, followed by a narrow band of 

 minute teeth ; lateral teeth small ; cheek naked. Gill-rakers long and 

 slender, 14 to 16 on lower part of anterior arch. Dorsal XVII-XVIII 7; 

 spines subequal from the eighth or ninth, about J length of head ; soft 

 rays a little longer. Anal VIII 6-8 ; last spine nearly as long as longest 

 dorsals. Pectoral § length of head. Ventral extending beyond origin 

 of anal. Caudal truncate. Caudal peduncle a little deeper than long. 

 Scales 35-36 j^j-g; lateral lines g^j^. Yellow, brownish on the back, 

 with rather indistinct darker bars across the back and across the caudal 

 VOL. III. 2 I 



