DISTICHODUS. 



271 



.'5—4. Yg'., types. 



5. Skel. • 



('». Hor.^ typo. 



7. Ad. 



8-10. Hgr. & y^. 



11. Y^^ 



12. Ad. 



Rhiidcy 1\k)I. 



Im)1()1)(), upper Congo. 

 Monseiiibe, ,, 



Upper Congo. 



Lindi Kivor, Upper Congo. 



Banzyville, Ul)angiii. 



M. A. Greshoff (C.) ; 



Utrecht Uui\ersity (E.). 

 Rev. G. Grenfell (P.). 

 Rev. J. II. Weeks (P.). 



Brussels Universit}-. 

 M. M. Storms (C.) ; 



Brussels Museum (P.). 

 Capt. Royaux (C!.). 



12. DISTICHODUS ENGYCEPHALUS. 

 Giinth. Cat. Fish. v. p. lUU (1864), and Petherick's Trav. ii. p. 2-17 (18G9) ; 



Bouleng. Ann. & Mag. N. Ii. (7) viii. 1901, p. 513 ; Werner, Sit/J). Ak. 



Wien, cxv. i. I'.lOi;, p. 1129; Bouh>ng. Fish. Nile, p. 148, pi. xxiv. fig. 2 



(1907). 

 Distichodus tonfeei, I'ellegr. I*hi11. Soc. Zool. Franco, xxxi. 190G, p. 109. 



Deptli of body 2| to 3 times in total length, length of head 4 to 5 

 times. Head but little longer than deep, 2 to 2J times as long as broad ; 



Fiff. 207. 



DUlicJiGchis engycepha I us. 

 Type(F.N.). |. 



snout feebly compressed, projecting very strongly beyond the mouth, its 

 length equal to, or slightly less than, interorbital width ; eye 3 (young) to 

 5 times in length of head, interorbital width 2 J to 3 J times; maxillary 

 extending to below nostrils ; teeth in two series in each jaw, outer series 

 containing 18-22. Gill-rakers short, 15-18 on lower part of anterior 



