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Show 328 MR. G. A. BOULENGER ON [Nov. 18, occiput; snout obtusely conical, a little less than | length of head ; eye supero-lateral, 5| times in length of head, 2 in interorbital width ; upper surface o'f head granulate and pitted from between the eyes. Occipito-nuchal shield as long as broad, simply convex, terminating in two pointed processes. Gill-cleft not extending below base of pectoral. Maxillary barbel distinctly fringed at the base, as long as the head ; mandibular barbels with rather short, simple branches, the outer barbels twice as long as the inner and measuring length of head. Lips rather feebly developed. Humeral process granulate and feebly keeled, acutely pointed, extending as far as occipito-nuchal shield. Dorsal II 7; spine strong, shorter than the head, serrated behind. Adipose fin 3| times as long as deep, as long as the head, 3 times as long as its distance from the rayed dorsal. Anal III 8. Pectoral spine slightly shorter than the head, strongly serrated on the outer edge, more strongly still on the inner. Ventral reaching, or nearly reaching anal. Caudal deeply forked, with pointed lobes. Caudal peduncle as long as deep. Skin of body smooth. Dark brown above and beneath ; fins black, with some light cross-bands in the young. Total length 110 millim. Two specimens from Oguta. 42. S ynodontis m embran ac eus Geofir.-Assay, Abo. 43. P i ir a c tu r a an so rg ii Blgr.-Agberi. P. Z. S. 1901, ii. p. 623, pi. xxxvii. fig. 1. C yprinodontidje. 44. H a p lo ch ilu s s p il a u c i ie n A. Dum.-Degama. 45. F u n d u lu s g u l ar is Blgr.-Agberi. P. Z. S. 1901, ii. p. 623, pi. xxxvii. figs. 2 & 3. P oLYNEMIDyE. 46. P olynem us q u a d r if il is L.-M u n an h o r . SERRANIDvE. 47. L ates n ilo t icu s L .-Agberi. C i CHLIDyE. 48. P elmatochromis p e l l e g r in i , sp. n. (P la te X X IX . fig. 2.) Teeth in 2 or 3 series in each jaw. Depth of body 2 | to 2| times in total length, length of head 2g to 2|. Snout with straight profile, 1 k to 1 ~ diameter of eye, which is contained 3^ to 4 times in length of head, and equals or nearly equals interorbital width ; maxillary extending to about midway between |