344 



SILUEID.E. 





27. Ad. 



Gondokoro, Bahr-el-Gebel. 



L. Loat, Esq. (G). 



28-29. Yg. 



Ngatana, Tana R. 



Prof. J. W. Gregory (P.). 



30. Head of ad. 



L. Chad. 



Capt. G. B. Gosling (P.). 



31-32. Hgr. 



Kano, Hadeija R., Chad 

 Basin. 



)5 



33. Ad. 



St. Louis, Senegal. 



M. P. Delhez (G). 



34-36. Yg. 



Kaedi, „ 



•}•> 



37. Ad. 



Niger. 



Mr. J. T. Dalton (C). 



38. Ad. 



>> 



W. A. Forbes, Esq. (P.). 



39-41. Ad. & hgr. 



Mureji, Upp. Niger. 



J. S. Budgett, Esq. (P.). 



42. Hgr. 



Oguta, Low. Niger. 



Dr. W. J. Ansorge (C). 



43-45. Yg. 



Abo, „ 



?) 



46. Yg. 



R. Benue, N. of; Ibi. 



H. L. Norton Traill, Esq, 



(C). 



17. GEPHYROGLANIS. 



Bouleng. Ann. Mus. Congo, Zool. i. p. 42 (1899), and Poiss. Bass. Congo, p. 292 

 (1901). 



Distinguished from Chrysichthys by the absence of teeth on the 

 palate. Nasal barbel short, sometimes hardly developed. 

 Tropical and South Africa. 



Synopsis of the Species. 



I. Nasal barbel \ to ^ diameter of eye ; maxillary barbel shorter than head 



a. Maxillary barbel not more than ? length 



of head ; folded dorsal fin not extending 



to the adipose. 



Anal with 8 branched rays ; adipose fin a little 



shorter than rayed dorsal ; caudal with acutely 



pointed lobes ; occiput feebly granulate . . 



Anal with 10 branched rays ; adipose fin a little 



longer than raj'ed dorsal ; caudal with acutely 



pointed lobes ; four longitudinal ridges on the 



vertex; occiput strongly rugose 2. G. ogoensis, Pellegr., 



Anal with 11 to 13 branched rajs; adipose fin longer 

 than rayed dorsal ; caudal with obtuse lobes ; 

 head smooth 



1. G. congicus, Blgr., p. 345. 



[p. 346. 



h. Maxillary barbel a little shorter than head ; 

 folded dorsal reaching adipose ; anal with 

 8 branched rays ; caudal with acutely 

 pointed lobe.5 ; occiput striated .... 



G. sclateri, Blgr., p. 346. 



4. G. tilhoi, Pellegr., p. 348. 



