688 MR. C. TATE REGAN ON THE 



(3. Maxillaiy not extending to below ej-e. 

 Lower jaw a little tlie shorter ; 12 or 13 gill- rakers on lower 



part of anterior arch 43. macropJitJialmus. 



Jaws equal anteriorly; 11 gill-rakers on lower part of 



anterior arch 44. leitoisciis. 



Jaws equal ; 15 or 16 gill-rakers ,..■ 45. inornatus. 



Lower jaw a little the shorter ; 16 or 17 gill-rakers 46. micrentodon. 



2. Pra?maxillarj' pedicels extending to between middle of orbits. 



47. eucinostomus. 

 II. Snout longer than postorbital part of head. 



A. Lower jaw projecting ; maxillary not extending to below e3'e. 



Teeth cuspidate ; caudal emarginate 48. prceorlitalis. 



Teeth conical; caudal truncate 49. compressiceps. 



B. .laws equal anteriorly ; maxillary' not extending to below ej-e. 



15 to 17 gill-rakcrs on lower part of anterior arch 50. macrorln/nchus. 



19 or 20 gill-rakcrs on lower part of anterior arch 51. rostratus. 



C. Jaws equal auteriorlj'; maxillary extending to below eye. 



52. macrostoma. 



1. Haplochromis livingstonii Giinth., 1893. 

 Maplochromis livingstonil (part.) Bouleiio-. Cat. Afr. Fish. iii. 



p. 286,.%. 194. 



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

 Snout with straight profile, 1| to 2 diameter of eye, which is 4| 

 to 5g in length of head, interorbital width Sj to 4, depth of prse- 

 orbital 3^ to 4. Lower jaw projecting ; maxillar}- not extending 

 to below eye ; teeth in 3 or 4 series, outer bicuspid and inner 

 tricuspid in young, all conical in adult, 50 to 60 in outer series of 

 upper jaw. 4 or 5 series of scales on cheek. 11 or 12 gill-rakers 

 on lower part of anterior arch. Pharyngeal teeth small. 33 to 

 35 scales in a longitudinal series, 6 or 7 from origin of dorsal to 

 lateral line. Dor,sal XVI 10-11 ; last spine 3 to | length of head. 

 Anal III 9-10 ; third spine 5 to | head. Pectoral a little shorter 

 than head, reaching origin of anal. Caudal truncate or slightly 

 emarg-inate. Caudal peduncle longer than deep. Silvery ( § ) 

 or bluish grey (J ) ; a dark bar from eye to end of maxillaiy ; a 

 large opercuLir spot; body marbled with blackish, the spots and 

 bands constantly nearly as in the figure of the type ; pectoral 

 with series of small spots on the rays : dorsal and anal, in male, 

 blackish with pale edge. 



The type, 120 mm. long, and three specimens of 200 to 230 mm. 

 {Wood). 



2. Haplochromis polystigma, sp. n. (PL I.) 



TJaplocliromis Uvingstonii (pai^t.) Bouleng. Cat. Afr. Fish. iii. 

 p. 286. 



Depth of body 2 1 to 3 in length, length of head about 3. 

 Snout with straight profile, 1| to 2| diameter of eye, which is 4 

 to 6 in length of head, interorbital width 3-g- to 4, depth of prse- 

 orbital 3| to 4|. Jaws equal anteriorly ; maxillary not extend- 

 ing to below eye ; teeth in 3 or 4 series in upper jaw, 2 or 3 in 

 lower, outer bicuspid and inner tricuspid in young, all conical 



