688 On new Fishes from Tunganj/ika Territori/. 



not extondiii^" downwaicU heyoiul haso. of pectoral. Occipito- 

 imcliiil sliicltl lotiuli like tlie occiput, ohtiisely tectitonn, loiij^or 

 than Itroad, with poiiitc'l posterior process. Ilumeral jirocess 

 much longer than broad, more or less distinctly keeled, 

 sharply pointed, extending as far back as occipito-nuchal 

 process. Dorsal I 6-7 ; spine equal lo or slightly shorter than 

 liead, feebly curved, anterior edge smooth except for two or 

 three serrations at the tip, ])Osterior edge feebly serrated. 

 Adipose fiu 3 to 4 times as long as deep, 1:^ to a little more 

 than twice its distance from rayed dorsal. Anal IV 7 ; 

 rounded. Pectoral spine shorter than head, strongly serrated 

 on both sides, not reaching pelvics. Pelvics not reaching anal. 

 (Caudal forked, upper lobe the longer. Caudal peduncle 

 as long as deep, or slightly deeper than long. Coloration 

 generally uniform, yung sometimes with darker spots 

 separated by a pale network; a black blotch at base of dorsal 

 iin ; dorsal and caudal sometimes with series of dark spots. 



Nine specimens, 70 to 180 ram. in total length. 



Near «S. zamhesensis and S. depauwi. 



Tilapia urolepis, sp. n. 



Depth o£ body 2^ in the length, lengtli of head nearly 3. 

 Head twice as long as broad. Snout rounded, with straight 

 upper profile, slightly broader than long, as long as poslocular 

 })art of head. Eye 4^ in length of head, equal to depth of 

 prseorbital ; interorbital width 2| in length of head. Mouth 

 rather more than f width of head; jaws equal anteriorly ; 

 maxillary extending to between nostril and eye; teeth 

 moderately slender, in 5 series, about 70 bicuspid teeth in 

 outer series of up|)er jaw. 3 series of scales on cheek, width 

 of scaly |)art nearly equal to diameter of eye. Gill-rakers 

 short, 20 on lower part of anterior arch. Djrsal XVII 13 ; 

 last spine longest,^ length of head; longest soft rays about | 

 length of head. Anal III 10; third spine shorter than longest 

 dorsal. Pectoral as long as heal, nearly reaching vertical 

 Irom origin of anal. Pelvics-almost reaching anal. Cauhil 

 rounded (?), densely scaled. Caudal peduncle twice as deej) 

 as long. Scales cycloid, 32 in a longitudinal series, 4^ from 

 origin of dorsal to lateral line. Reddish brown, with irregular 

 dark blotches on body ; a dark opercular spot, and a dark 

 spot on each side of the nape. 



A single specimen, 190 mm. in total length. 



Differs from T. ni/otica in having the caudal densely scaled, 

 and in the longer snout ; and fioni 2\ lepidura chiefly in the 

 character of the dentition. 



