CICHLID FISHES OF LAKE ISTYASSA. 709 



33. Haplochromis brevis Bouleng., 1908. 



Tilapia brevis Bouleng. Cat. Afr. Fisli. iii. p. 262, fig. 177. 



Dspth of body 2| in length, length of head 2|. Snout convex, 

 shorter than diameter of eye, which is twice prseoi'bital depth, 

 2^ to 2| in length of head ; interorbital width 4 in head. Jaws 

 equal anteriorly ; maxillary extending to below anterior edge of 

 eye ; teeth in 2 or 3 series ; 65 to 80 bicuspid teeth in outer series 

 of upper jaw. 3 series of scales on cheek. 8 or 9 gill-rakers on 

 lower part of anterior arch. Pharyngeal teeth small. 31 scales 

 in. a longitudinal series, 6 from origin of dorsal to lateral line. 

 Dorsal XV 12; last spine a little less than ^ length of head. 

 Anal III 9 ; third spine stronger than dorsals, g head. Pectoral 

 as long as head, reaching anal. Caudal emarginate. Caudal 

 peduncle as long as deep. Silvery; an opercular spot ; a dark 

 band from nape to base of caudal. 



Two specimens, 70 and 75 mm. in total length. 



34. Haplochhosiis notot^bnia Bouleng., 1902. 

 Paratilapia nototcenia Bouleng. Cat. Afr. Fish. iii. p. 359. 

 Depth of body 2| to 3 in length, length of head 2| to 3. 



Snout decurved, shorter than postorbital part of head. Diameter 

 of eye 3| to 4^ in length of head, interorbital width 3^ to 3;^, 

 prseorbital depth 4 to 4g^. Jaws equal anteriorly; maxillary 

 extending to below anterior margin of eye ; teeth in 3 to 5 

 series, outer biscuspid in young, conical in adult, 75 to 90 in 

 outer series of upper jaw. 3 series of scales on cheek. 12 gill- 

 rakers on lower part of anterior arch. Pharjaigeal teeth small. 

 35 or 36 scales in a longitudinal series, 6 from origin of dorsal 

 to lateral line. Dorsal XYI-XVII 10-12 ; last spine 1 length of 

 head. Anal III 9-10; third spine | to ^ head. Pectoral a little 

 shorter than head, reaching oi"igin of anal. Caudal emarginate. 

 Cavidal peduncle 1^ as long as deep. An opercular spot; a 

 blackish baiid on each side of back from origin of dorsal to caudal ; 

 dorsal and caudal with bars or sei'ies of spots ; lower fins tinged 

 •with orange. 



The type and three specimens of 180 to 250 mm. (Wood). 



35. Haplochromis lepturus, sp. n. (Text-fig. 22.) 

 Paratilcqna rhoadesii (part.) Bouleng. Cat. Afr. Fish. iii. p. 361. 

 Depth of body 3i to 33 in length, length of head 3 to 3^. 



Snout decurved, a little shorter than postorbital part of head. 

 Diameter of eye 4^ to 6 in length of head, interorbital width 

 3| to 4, depth of prseorbital 4 to 41-. Jaws equal anteriorly ; 

 maxillary extending to vertical from anterior edge of eye ; 

 teeth conical, in 3 to 6 series, 70 to 90 in outer series of 

 upper jaw. 4 or 5 series of scales on cheek. 11 to 13 gill- 

 rakers on lower part of anterior arch. Pharyngeal teeth small, 

 37 to 39 scales in a longitudinal series, 6 or 7 from origin of 



