SILUEID^E. 289 



teeth a little more than 4 times as long as broad, as broad as vomerine 

 band; nasal barbel 1^ to 1| times as long as head; maxillary barbel 

 longer than head. Dorsal 74-81, its distance from occipital process 

 a little more than -^ length of head. Anal 61. Pectoral nearly 2 to f 

 length of head, spine serrated on inner side. Ventral 1^ to i| times as 

 distant from root of caudal as from end of snout. Caudal longer than 

 head. Anal with a light edge. 



Total length 200 millim. 



Ituri River, Upper Congo. — Types in Vienna Museum. 



Distinguished from the two other species of the genus by a broader 

 head, longer nasal barbels, and a longer caudal fin. 



3. CLARIALLABES, Blgr. 

 1. (JLARIALLABES MELAS, Blgr. 



Add:- 



4. Ad. Lebusi R. (Cliiloango) at Dr. W. J. Ansbrge (C.)- 



Knka Muno. 



la. CLARIALLABES BREVIBARBIS. 

 Pellegr. Bull. Soc. Zool. France, xxxviii. 1913, p. 272. 



Closely allied to C. melas. Distinguished by shorter barbels, the 

 nasal measuring | length of head, the maxillary scarcely longer, fewer 

 (9) gill-rakers, and a longer caudal. Dorsal 102 ; anal 91. 



Total length 290 millim. 



ISgomo, Ogowe. — Type in Paris Museum. 



4. GYMNALLABES, Qthr. 



1. GYMNALLABES TYPUS, Gthr. 

 ? Clariallahi-s longicaudaius, Pappenh. Mitth. Zool. Mus. Berl. v. 1911, p. 519, fig. 



5. CHANNALLABES, Gthr. 



1. OHANNALLABBS APUS, Gthr. 

 Bouleng. Ann. Mus. Congo, Zool. ii. 3, p. 17 (1912) ; Steind. Denkschr. Ak. 

 wL), Ixxxix. 1913, p. 28. 



Add:— 

 12-13. Ad. Lebuzi R. (Chiloango) Dr. W. J. Ausorge (C). 



at Kuka Muno. 

 24^_ Yg. Luali R. (Chiloango) „ 



at Lundo. 



VOL. IV. ^ 



