AUCHENOGLANIS. 369 



10 (young) to 20 strong serrse on inner side. Ventral equally distant 

 from anterior or posterior border of eye and from root of caudal, reaching, 

 or nearly reaching, anal. Caudal rounded, obliquely truncate, or feebly 

 emarginate. Brown, olive, or dark green, uniform or with small round 

 blackish spots, which may be numerous or few and scattered, or confined 

 to the fins ; the spots smallest, and often mere dots, on the rayed fins ; 

 the spots on the body large in the very young. Lower parts white. 



Total length 350 millim. 



Lower Nile to Bahr-el-Gebel ; Chad Basin ; Niger ; Calabar. Type 



in Paris Museum. 



1. Yg- Goz-abu-Gumah, White Nile. L. Loat, Esq. (C). 



2-11. Ad., bor., & yg. Fashoda, 



12. Hgr. Tonga, 



13. Ad. Mouth o£ L. No, 



14-23, 24-33. Ad., Gondokoro, Bahr-el-Gebel. 

 hgr., & yg. 



34. Hgr. Kano, HadeijaR., Chad Basin. Capt.G.B. Gosling (P.). 



35. Hgr. Mnreji, Upper Niger. J. S. Budgett, Esq. (P.). 



36. Yg. Cross B. district, Old Calabar. Major W. A. C. Cock- 



burn (P.). 



2. AUCHENOGLANIS OCCIDENTALIS. 

 Pimelodus occidentalis, Cuv. & Val. Hist. Poiss. xv. p. 203 (1840). 

 Auchenaspis biscutatus, part., Gunth. Cat. Fish, v. p. 137 (1864). 

 Auchenaspis biscutatus, Steind. Sitzb. Ak. Wien, lx. i. 1870, p. 993 pi. v i. 



figs. 3 & 4. 

 O.ryglanis sacchii, Vincig. Ann. Mus. Genova, (2) xix. 1898, p. 250. 

 Auchenoglanis biscutatus, part., Bouleng. Poiss. Bass. Congo, p. 296 (1901). 

 Auchenoglanis occidentalis, Bouleng. Ann. & Mag. N. H. (7) x. 1902, p. 263, and 



Fish. Nile, p. 347, pi. Ixiii. (1907). 

 Auclienoglanis occidentalis, var. tanganicanus, Bouleng. Tr. Zool. Soc. xvii. 1906 



p. 553, pi. xxxiii. 

 Auchenoglanis occidentalis, var. tcliadiensis , Pellegr. Bull. Mus. Paris, 1909, p. 244. 



Very nearly allied to the preceding, but distinguished by the lono-er 

 and more pointed snout, which measures usually more than half length 

 of head, and 3 (young) to 8 times diameter of eye; maxillary barbel 

 always shorter than outer mandibular, ^ to a little over ^ length of head, 

 not extending beyond posterior border of eye. Adipose fin often deeper 

 behind than in A. biscutatus and its outline ascending more gradually. 

 Olive or brown, uniform or spotted with dark brown or blackish ; these 

 spots, when present, larger than in A. biscutatus, often very large on the 



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