364 SILUEID^. 



22. PARAUCHENOGLANIS, -. n. 



Body moderately elongate, feebly compressed. Dorsal and anal fins 

 short, the former composed of a spine and 7 branched rays, and 

 followed by a long adipose fin. Pectoral fin with a spine. Ventral 

 fin with 6 rays, inserted below the dorsal fin. Three pairs of 

 barbels : maxillary and two mandibulars. Nostrils widely separated 

 from each other, the anterior tubular, on the upper lip, the posterior 

 slit-like. Eye superior, without free border. Maxillary bone rather 

 large, hidden in the lip but bordering the mouth ; jaws with a large 

 band of villiform teeth. Gill-membranes free, deeply notched. Air- 

 bladder large, free. 



Vertebrae 39 (16 + 23). 10 branchiostegal rays. 



Cameroon, Gaboon. 



Two species : — 



Outer mandibular barbel not reaching beyond 



middle of pectoral fin 1. P. gultaliis, LiJnnb., p. 364. 



Outer mandibular barbel reaching extremity 



of pectoral fin 2. P. macrostoma, Peliegr., p. 3G5. 



1. PARAUOHENOGLANIS GUTTATUS. 



Punelodus giUtatus, Lonnb. Ofvers. Vet.-Akad. Forh. Stockholm, 1895, no. 3, 



p. 184. 

 Aiiclienoglanis guttatus, Bouleng. Ann. Mus. Congo, Zool. ii. p. 40 (1902). 



Depth of body 5 to 6 times in total length, length of head 3;j to 3| 

 times. Head much depressed, 1;|- to 1^ times as long as broad, its 

 upper surface smooth ; snout broadly rounded, f length of head ; 

 occipital process small, longer than broad, not reaching the feebly 

 developed interneural plate; eye superior, 7 to 10 times in length of 

 head, 2|- to 3 times in interorbital width ; mouth broad, terminal ; 

 prsemaxillary teeth forming a long and broad crescentic band. Maxillary 

 barbel f to f length of head, inner mandibular | to f , outer mandibular 

 nearly as long as head or a little longer, reaching base or middle of 

 pectoral fin. Gill-rakers rather long and widely set, 10 or 11 on lower 

 part of anterior arch. Humeral process small, pointed, smooth. Dorsal 

 I 7 ; spines smooth, f to ^ length of head. Adipose dorsal 4 to times 

 as long as deep, 2 to 3 times as long as its distance from rayed dorsal. 

 Anal 11-12 (7-8 rays branched). Pectoral not reaching ventral ; spijie 



