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Show .1902.] ICHTHYOLOGY OF THE CONGO. 267 29. AUCHENOGLANIS PUNCTATUS, sp. n. (Plate XXIX. figs. 1, la.) Depth of body 5 times in total length, length of head 3 times. Head smooth, 11 as long as broad ; snout pointed, half the length of the head ; diameter of eye 6 times in the length of the head, hardly twice in the interocular width ; width of mouth more than half that of the head ; lips wide, papillose; posterior nostril cleft-like, a little nearer the eye than the end of the snout; prse-maxillary teeth forming a short and narrow band, the mandibulars two rounded groups; maxillary barbel as long as the head, reaching the middle of the pectoral spine; outer mandibular barbel 1£ the length of the head, inner \ the length of the head; gill-membranes forming an obtuse angle ; occipital process small, as long as the eye, separated from the interneural shield, which is very small. Humeral process small, pointed. Dorsal I 7; spine smooth, -f the length of the head. Adipose fin 4 times as long as deep, nearly reaching the caudal, narrowly separated from the rayed dorsal. Pectoral spine half as long as the head, its inner edge strongly serrated. Ventral not reaching the anal. Latter with 10 rays, 7 of which are branched. Caudal rounded. Pale brownish, with seven indistinct darker bars, each accompanied by a vertical series of black clots ; belly white; dorsal and caudal fins with transverse series of dark spots. Total length 80 millim. A single specimen. Allied to A. ubangensis Blgr. Differing principally in the longer maxillary barbel. 30. AUCHENOGLANIS PULCHER, sp. n. (Plate XXIX. figs. 2, 2 a.) Depth of body 5 to 5-1- times in total length, length of head 3 to 3TT times. Head smooth, l>y as long as broad ; snout obtusely pointed, half the length of the head ; diameter of eye 7 to 9 times in length of head, twice to twice and a half in the interorbital width ; width of mouth rather more than half that of the head; lips wide, papillose ; posterior nostril cleft-like, a little nearer the eye than the end of the snout; pramiaxillary teeth forming a reniform group, the mandibulars two rounded groups ; maxillary barbel § to -| the length of the head, not extending beyond the base of the pectoral; outer mandibular barbel nearly as long as the head, inner nearly half the length of the head; gill-membranes forming an acute angle; occipital process small, as long as the eye, separated from the interneural shield, which is very small. Humeral process small, pointed. Dorsal I 7 ; spine smooth, half the length of the head. Adipose fin 4 to 5 times as long as deep, twice to twice and a half as long as its distance from the rayed dorsal. Pectoral spine half as long as the head, its inner edge strongly serrated. Ventral not reaching the anal. Latter with 11 or 12 rays, 7 or 8 of which are branched. Caudal rounded. Caudal peduncle as long as deep. Yellowish, brown on the back, with transverse series of round black spots; a large black blotch 18* |
