CLARIAS. 



253 



almost in contact with caudal. Anal 55-67, almost in contact with 

 caudal. Pectoral \ to f length of head, the spine serrated on both sides, 



Pig. 209. 



of head, 

 edge. 



Clarias bytliipogon, 

 Ogowe. \. 



to | the length of the fin. Ven- 

 trals much nearer end of snout than 

 caudal. Caudal J or nearly § length 

 Olive-brown above, whitish beneath ; anal fin with a dark 



Total length 230 millim. 



Old Calabar to Congo. — Type in Paris Museum. 



1. Ad. 



2-4. Ad. & hgr. 

 5-6. Ad. & hgr. 

 7, 8. Ad. & hgr. 



9. Ad. 

 10-11. Yg. 



Old Calabar. 



Assobam, Bumba R., S. Cameroon. 

 Kondo-kondo, Ogowe. 

 Kinshassa, Stanley Pool. 



Monsembe, Upp. Congo. 

 Lindi R., ,, 



Miss Kingsley (C). 

 G. L. Bates, Esq. (C). 

 Miss Kingsley (C). 

 M. A. Gresshoff (C.) ; 



Utrecht Museum (E.). 

 Rev. J. H. Weeks (P.). 

 M. M. Storms (C); 



Brussels Museum (P.). 



22. CLARIAS ALLUAUDI. 



Clarias microphthalmus (non P£eff.), Pellegr. Mem. Soc. Zool. France, xvii. 1905, 



p. 176. 

 Clarias alluaudi, Bouleng. Ann. & Mag. N. H. (7) xvii. 1906, p. 437, Fish. Nile, 



p. 296, pi. liii. fig. 2 (1907), and Proc. Zool. Soc. 1907, p. 1083. 



Depth of body 5§ to 6^ times in total length, length of head 4 to 4^ 

 times. Head \\ to 1^ times as long as broad, smooth above ; occipital 

 process acutely pointed, longer than broad ; frontal fontanelle twice as 

 long as broad, about 4 times in length of head ; occipital fontanelle 

 small, extending on occipital process ; eye 2 or 2| times in length of 

 snout, 4 or 5 times in interorbital width ; width of mouth a little less 



