CICHLID FISHES OF LAKE NYASSA. 



713 



qheek. 13 or 14 gill-rakers on lower part of anterior arch. A 

 group of enlarged teeth with spherical crowns on posterior half of 

 lower pharyngeal. 33 scales in a longitudinal series, 6 from origin 

 of dorsal to lateral line. Dorsal XVI 10 ; last spine f to |, 

 longest soft rays f to i length of head. Anal III 9 ; third spine 

 ^ to f head. Pectoral longer than head, I'eaching middle of anal. 

 Caudal emarginate. Caudal peduncle longer than deep. Silvery; 



Text-tie'ure 24. 



Saplochromis macrocJdr. f. 



an opercular spot ; about 10 faint dark cross-bars ; dorsal and 

 caudal with series of spots ; anal, in male, with several ocelli. 

 Two specimens, 115 and 130 mm. long (Wood). 



42. Haplochromis argyrosoma, sp. n. (Text-fig. 25.) 



Tilcqna ■macroplithahna (part.) Boulei:ig. Cat. Afr. Fish. iii. 

 p. 261. 



Depth of body equal to length of head, 3i in length of fish. 

 Snout decurved, shorter than diameter of eye, which is 3 in length 

 of head, twice depth of prseorbital or cheek; interorbital width 5 

 in length of head. Jaws equal anteriorly ; maxillary extending 

 to below anterior edge of eye ; teeth in 2 or 3 series, 50 in outer 

 sei-ies of vipper jaw, mostly bicuspid, but the last few on each side 

 conical : 2 series of scales on cheek. 11 gill-rakers on lower part 

 of anterior arch. Last few teeth of two middle series of lower 

 pharyngeal enlarged. 33 scales in a longitudinal series, 5 fi-om 

 origin of dorsal to lateral line. Dorsal XVII 10 ; last spine 

 nearly k length of head. Anal III 9 ; third spine less than * head. 

 Pectoral as long as head, reaching 

 Caudal peduncle \\ as long as deep, 

 with series of spots. 



anal. Caudal emarginate. 

 Silvery ; dorsal and caudal 



48* 



