1899.] smiAN risHEs op the family cichlid^. 141 



15. Steatocbantts Blgr. 

 Ann. Mus. Congo, Zool. i. p. 52 (1899), 



Body moderately elongate ; scales cycloid. Two series of small 

 notched teeth in both jaws, the outer larger, with a pair of larger, 

 truncate, incisor-like teeth at the symphysis. Maxillary exposed. 

 An adipose crest or swelling along the vertex and occiput. 

 Dorsal with 19 or 20 spines, anal with 3. Vertebrae 30 (16 + 14). 



1. StBATOCRANXJS 6IBBICEPS Blgr. 



L. c. pi. xxviii. fig. 1. 



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

 Snout -with slightly convex upper profile, nearly twice as long as 

 the eye, the diameter of which is 5 times in length of head and 

 equals interorbital width ; maxillary extending to below nostril ; 

 no scales on the head. Dorsal XIX-XX 8 ; last spine longest, 4 

 length of head, a little shorter than soft rays. Pectoral rounded, 

 I or I length of head. Ventral not reaching vent. Anal III 0. 

 Caudal rounded. Caudal peduncle as long as deep. Scales 32-35 

 i- kt 1 21 



Total length 75 millim. 

 Lower Congo. 



16. DooiMODus Blgr. 

 P. Z, S. 1896, p. 917. 



Body moderately elongate ; scales cycloid. Both jaws with a 

 very broad band of teeth with compressed sharp- edged crowns ; 

 the outer teeth large, with nail-shaped entire crowns or with a 

 very small lateral cusp, the others small and tricuspid. Maxillary 

 exposed. Dorsal with 16 or 17 spines, anal with 3. Vertebrse 32 

 (14+18). 



1. DOOIMODUS JOHNSTONI Blgr. 



L. c. fig. 



4 or 5 rows of teeth in each jaw ; 10 or 11 teeth on each side 

 of the outer series of the upper jaw ; crowns brown-edged. Depth 

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

 a little nearer gill-opening than tip of snout, its diameter 4| in 

 length of head, 1| in interorbital width ; maxillary extending to 

 between nostril and eye ; 3 or 4 series of scales on the cheek ; 

 opercle scaleless. Gill-rakers short, 11 or 12 on lower part of 

 anterior arch. Dorsal XVI-XVII 8-9 ; spines increasing in 

 length to the 5th, which is f length of head. Anal III 9-10 ; 

 third spine longest, as long as last or penultimate dorsal, but 

 much thicker. Caudal peduncle 1| as long as deep. Scales 33-34 

 jq ; lat. 1. pg. A black stripe along the posterior half of the body, 

 between the lateral lines ; soft dorsal with round dark spots. 



Total length 200 millim. 



Upper Shire River, 



