346 SILURID.E. 



peduncle a little over twice as long as deep. Brownish above, white 

 beneath. 



Total length 480 millim. 



Upper Congo. — Type in Congo Museum, Tervueren. 



2. GEPHYROGLANIS OGOENSIS. 



Pellegr. Bull. Mus. Paris, 1900, p. 179, and Bull. Soc. Philoni. (9) x. 1908, 

 p. 187. 



Depth of body 5 to 5^ times in total length, length of head 3J times. 

 Head nearly as deep as broad, If times as long as broad, with four 

 longitudinal ridges on the vertex and strong rugosities on the occiput, 

 to which the skin is adherent ; occipital process much longer than 

 broad, in contact with interneural shield ; snout obtusely conical, more 

 than f length of head; eye oval, twice in snout, 4f times in head, 

 1|- to IJ times in interocular width ; nnsal barbel ^ diameter of 

 eye; maxillary barbel f length of head, outer mandibular f, inner 

 mandibular!; mouth J width of head; praemaxillary band of teeth 

 straight, nearly 4 times as long as broad. Dorsal I 6, not reaching 

 adipose fin when folded, longest soft ray J length of head ; spine strong, 

 striated, feebly serrated behind, f length of head. Adipose fin about 

 twice as long as deep, as long as or a little longer than rayed dorsal, its 

 base once and f to twice and J in its distance from the latter. Anal 15, 

 10 rays branched. Pectoral spine a little shorter than dorsal, strongly 

 serrated on inner border. Caudal deeply forked, longer than head, with 

 long pointed lobes. Caudal peduncle twice as long as deep *. 



Total length 1^50 millim. 



Aduma, Ogowe. — Type in Paris Museum. 



3. GEPHYROGLANIS SCLATEHI. 

 Bouleng. Ann. S. Afr. Mus. ii. 1901, p. 228, pi. xiii. 



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

 Head 1\ to 1^ as broad as deep, 1^ to 1-| times as long as broad, perfectly 

 smooth; occipital process much longer than broad, in contact with the 

 interneural shield; snout obtusely conical, f length of head; eye 5 to 

 6 times in length of head, l-J- to If times in interocular width ; nasal 

 barbel very short, barely J diameter of eye; maxillary barbel | to ^ 



* Described from the tvpe specimen and another, from the sauie locality, named 

 '• Chrijskhthiis n'Kjrodhjitatas'' in the Paris Museum. 



