OCR Text |
Show 514 . MR. G. A. BOULENGER ON [May 8, 21. SCHILBE SENEGALENSIS C. & V. 22. ARIUS LATISCUTATUS Gthr. " Known as «Wollinyaba.' It is used as food. Seen two feet in length." 23. CHRYSICHTHYS CAMERONENSIS Gthr. 24. CHRYSICHTHYS NIGRODIGITATUS Lacep. 25. AUCHENOGLANIS BISCUTATUS Geoffr. 26. SYNODONTIS CLARIAS Hasselq. " Not very common; taken several times at Nianimaru. Brilliant red tail and a little red near the head. Native name ' Konn-krikonng.' Not used as food." 27. SYNODONTIS GAMBIENSIS Gthr. " Called by the natives ' Kosso.' W a s very abundant in the river. Frequently when taken from the water made a faint cry. It is seldom eaten by the natives. Dull grey." 28. SYNODONTIS OCELLIFER, sp. n. Praemaxillary teeth in several irregular series, forming a broad band; mandibular teeth 23 to 30, hooked, simple, measuring barely one sixth the diameter of the eye. Depth of body 3 times in total length, length of head 3| times. Head slightly longer than broad, convex on the occiput; snout obtusely conical, 5 length of head ; eye supero-lateral, its diameter 5 times in length of head, 1| to If in interorbital width; upper surface of head moderately granulate from between the eyes ; frontal fontanelle narrow. Occipito-nuchal shield obtusely tectiform, longer than broad, granulate like the upper surface of the head, and terminating in two obtuse processes. Gill-cleft not extending below base of pectoral. Maxillary barbel without distinct fringe, longer than the head, reaching middle or posterior third of pectoral spine; mandibular barbels with long, slender, simple branches, inserted on a straight transverse line, outer nearly as long as the head, once and two thirds as long as inner. Lips rather feebly developed. Humeral process granulate, acutely pointed, extending nearly as far as occipito-nuchal shield. Dorsal II 7; spine strong, a little shorter than the head, curved, striated, with 12 or 13 feeble seme behind in its upper half. Adipose fin 3 to 3| times as long as deep, a little longer than the head, 4 to 5 times as long as its distance from the dorsal. Anal IV 7-8. Pectoral spine slightly longer than dorsal, striated, feebly serrated on the outer edge, with 18 to 21 strong antrorse seme on the inner edge. Ventral not reaching anal. Caudal deeply forked, with pointed lobes, upper longest. Caudal peduncle as 'long as deep. Skin of body smooth. Grey-brown above and on the sides, white beneath ; body and adipose fin with large black-and-white ocellar spots |