PELMATOCHROMIS. 383 



measures J to f length of head (in young, third to fifth spines longest, 

 J length of head) ; longest soft rays J to f length of head. Anal III 8 ; 

 spines very strong, third J to f length of head. Pectoral as long as or 

 a little longer than head, reaching origin of anal. Ventral produced 

 into a filament, reaching vent. Caudal scaly, rather deeply emarginate. 

 Caudal peduncle longer than deep. Scales cycloid or feebly denticulate, 



6-8 



55_67 _3_ ; lateral lines ^4=S' ^^^ ^^^^'^^ extending far forward. 



10-19 ^^ *^ 



Golden, greyish brown, or olive-brown above, with or without 5 or 6 

 more or less distinct darker bars on the body ; dorsal, and sometimes 

 also anal and caudal, with reddish or purpUsh brown streaks or a wide- 

 meshed network. 



Total length 300 millim. 



Lake Tanganyika. — Types in Congo Museum, Tervueren. 



1-2. Types. Kinyamkolo. Prof. J. E. S. Moore (C.;. 



3. Type. Kibwesi. „ 



4-5. Ad. & yg. Mtondwe Bay. Dr. W. A. Cannington (C). 



6. Ad. Niiimkolo. „ 



7-8. Hgr. & yg. Mouth of Little Rusisi R. Dr. L. Stoppers (C). 



0-10. Ad. & yg. Vua Bay. 



2. rELMATOCPIROMlS JENTINKI. 



Faratilapia {Pehnatoch'omis) jentinkiij Steind. Notes Lej d. Mus. xvi. 1894, p. 43, 



pi, ii. fig. 1. 

 J^dmatochromis jentinki, Bouleng. Proc. Zool. Soc. 1808, p. 148, and 1900, p. 516; 



Pellogr. Mem. Soc. Zool. France, xvi. 1904, p. 277, and Ann. Instit. Oceanogr. 



vi. 4, 1914, p. 50, pi. ii. fig. 1. 



Depth of body 2^ to 2f times in total length, length of head 3 to 

 o^ times. Head nearly twice as long as broad ; snout rounded, with 

 convex upper profile, as long as broad, as long as or longer than eye, 

 which is 2f to 3J times in length of head, 1 to l-J- times in interorbital 

 width, and equals or exceeds praeorbital depth ; mouth rather small, 

 extending to between vertical of nostril and eye ; teeth small, in 2 to 

 4 series, 40 to 50 in outer series of upper jaw ; 3 or 4 series of scales 

 on the cheek, width of scaly part much less than diameter of eye. Gill- 

 rakers short, broad, tubercular, 12 to 15 on lower ])art of anterior arch. 

 Dorsal XllI-XV 10-17 ; spines rather slender, rapidly increasing in 

 length in front and sliglitly behind, la^t about h length of head ; longest 



