706 



MR. C. TATE REGAN ON THE 



29. Haplochromis plagiot^enia, sp. n. (Text-fig. 19.) 

 Tilapia lateristriga (part.) Bouleng. Cat. Afr. Fish. iii. p. 253. 

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

 Snout with straight or slightly convex profile, as long as or a 

 little longer than diameter of eye, which is 3 to 4 in length of 

 head, greater than preeorbital depth, equal to or g]'eater than 

 depth of cheek ; interorbital width 3 t to 3| in head. Jaws equal 

 antei'iorly ; maxillary not extending to below eye ; teeth in 2 to 

 4 series; 35 to 50 bicuspid teeth in outer series of upjaer jaw. 

 3 or 4 series of scales on cheek. 8 to 11 gill-raliers on lower part 

 of anterior arch. Pharyngeal teeth small, compressed, those of 

 the series on each side of middle line a little enlarged. 31 to 33 

 scales in a longitudinal series, 5 or 6 from origin of dorsal to 

 lateral line. Dorsal XV-XYI 10-11 ; last spine about | length 



Text-fiOTire 19. 



,^^^ 



f#. 



, ^.^. 



Haplochromis plagiotienia. 



of head. Anal III 8-9 ; third spine f to | head. Soft dorsal; 

 anal, and pelvic fins produced in males. Pectoral as long as or a 

 little shorter than head, nearly or quite reaching anal. Caudal 

 slightly emarginate. Caudal peduncle longer than deep. A dark 

 band from nape to middle of base of caudal ; dorsal and caudal 

 usually with series of spots ; males darker in colour, Avith dark 

 fins, the dorsal with a pale edge, 



17 specimens, 70 to 110 mm. in total length (Ehoades, Wood), 

 all but one with 15 dorsal spines. 



30. Haplochromis melanot^nia, sp. n, (Text-fig. 20.) 



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

 Snout straight, declivous, nearly as long as or a little longer than 

 diameter of eye, which is 3 to 3| in length of head, equal to or 

 greater than interorbital width, greater than prseorbital depth, 



