CICHLID FISHES OF LAKE NYASSA. 677 



.1. Til APIA MOSSAMBiCA Peters, 1852. 



Bouleng. Cat. Afr. Fish. iii. p. 154, fig. 101. 

 East Africa. 



2. TiLAPIA MELANOPLEURA A Dum., 1859. 



Bouleng. Cat. Afr. Fish. iii. p. 190, fig. 123. 

 We.st Africa, Congo, and Zambesi. 



3. TiLAPiA SQUAMiPiNNis Giinth., 1864. 



Bouleng. Cat. Afr. Fish. iii. p. 183, fig. 118. 

 Nyassa. 



4. TiLAPiA SHiRANA Bouleng., 1896. 



Bouleng. Oat. Afr. Fish. iii. p. 151, fig. 98. 

 ISTyassa and Portuguese E. Africa. 



2. CoREJiATODus Bouleng., 1896. 



Jaws with very broad bands of very small teeth, the outer 

 with expanded, compressed, and obliquely truncated crowns, the 

 inner mostly pointed. Scales cycloid. 



A single species from Nyassa. 



CoREMATODUS SHiRANUS Bouleng., 1896. 



Core')natodus shiranus Bouleng. Cat. Afr. Fish. iii. p. 494, 

 fig. 342. 



Depth of body 2| in length, length of head 3. Snout with 

 convex profile, shorter than postorbital part of head. Diameter 

 of eye eojual to prteorbital depth, 5 in length of head ; interorbital 

 width 2f . Jaws equal anteriorly ; maxillary extending to below 

 eye. 4 series of scales on cheek. 12 gill-rakers on lower part of 

 anterior arch. Pharyngeal teeth small. 34 scales in a longi- 

 tudinal series. Dorsal XYI 11; last spine t length of head. 

 Anal HI 9 : third spine ^ length of head. Caudal scaly. Caudal 

 peduncle 1| as long as deep. Body with seven narrow blackish 

 cross-bars as in Tilcqna sqioamiphmis , the first dov/nwards from 

 origin of dorsal, the last two on caudal peduncle. 



The type, 200 mm. long. 



3. Hemitilapia Bouleng., 1902, 



Teeth in 3 to 6 series, small, with slender shaft and compressed 

 and expanded crown, those of outer series obliquely truncated. 

 Scales feebly denticulate. 



A single species from Nyassa. 



Hemitilapia oxyrhynchus Bouleng., 1902. 



He/initilcqna oxyrhynchus Bouleng. Cat. Afr. Fish iii p 489 

 fig. 339. 



