Chiloglanis waterloti Daget 1954

Diagnosis: Chiloglanis waterloti is distinguished from all West African congeners, with the exception of C. longibarbis, in having fewer mandibular teeth in the functional row; it is distinguished from C. longibarbis in having shorter maxillary barbels and shorter medial mandibular barbels (Ref. 116018).Description: A moderate-sized Chiloglanis; 48.0 mm maximum standard length observed; body dorsally depressed anteriorly; laterally compressed posteriorly; pre-dorsal angled toward snout; pre-orbital convex; post- dorsl body moderately angled ventrally towards caudal fin; pre-anal profile horizontal; post-anal horizontal to ventrally sloping towards caudal fin (Ref. 116018). Unculiferous tubercles scattered across body; concentration higher near head; lateral line complete; arising above level of orbit and sloping ventrally towards caudal fin; urogenital papillae sexually dimorphic; elongate in males; reduced and separated from anus by shallow invagination in females (Ref. 116018). Head depressed; gill membranes broadly united; gill openings restricted; opening slightly dorsal of pectoral-fin origin to level of mid-orbit; occipital-nuchal shield covered and visible through skin; eyes moderate; horizontal axis longest; orbits without free margins; anterior and posterior nares equidistant; mid-snout; posterior nares with elongated anterior and medial flaps (Ref. 116018). Mouth inferior; upper and lower lips united to form oral disc; oral disc moderate in size, its width 17.4-23.0% of standard length; wider than long; covered in papillae (Ref. 116018). Barbels in three pairs; maxillary barbel originating from posterolateral region of disc; unbranched; moderate in length, 20.4-37.8% of head length; lateral and medial mandibular barbels moderate; incorporated into lower lip; positioned on both sides of midline cleft on posterior margin of oral disc; lateral barbels, 11.5-22.2% of head length, nearly twice the length of medial barbels (Ref. 116018). Premaxillary teeth "S"-shaped; exposed tips brown; 39-70 teeth in three rows on ovoid tooth pads; secondary premaxillary teeth scattered on posterior surface of premaxillae; tertiary teeth small and needle-like; inserted near midline on dorsal edge of toothplate; mandibular teeth in 1-2 rows; "S"-shaped and bunched near midline; functional, anterior, row usually contains eight brown tipped teeth (Ref. 116018). Dorsal-fin origin just posterior to anterior third of body; dorsal fin with small spinelet, spine, and 5-6 rays; dorsal spine relatively long, 13.3-20.0% of standard length; anterior margin of spine smooth, three small notches distally; posterior margin smooth distally, four notches proximally; adipose fin moderate in length, 13.9-21.4% of standard length; margin convex; small notch posteriorly; caudal fin forked with rounded lobes; lower lobe slightly longer than upper lobe; count i,7,8,i; anal-fin origin posterior to origin of adipose fin; extending well beyond adipose-fin terminus; margin convex; count iii,6-7; pelvic-fin origin at vertical midway between dorsal and adipose fin; extending to anal-fin origin; margins convex; count i,6; pectoral fin with smooth spine; relatively long, 16.7-24.8% of standard length; count I,8-9 (Ref. 116018). Postcleithral process sexually dimorphic; elongate, spatulate in males; females possessing a shorter, pointed process; body size sexually dimorphic; females attaining larger standard lengths than males (Ref. 116018).Colouration: Live colouration: body with light yellowish-brown ground colour with overlying melanophores, fins yellow (Ref. 116018). The colouration of preserved specimens in dorsal view, body a dark brown with mottling of medium brown; lighter areas anterior to dorsal-fin origin, and at adipose-fin origin and terminus; head dark brown; scattered spots of medium brown, dark melanophores spread throughout; in lateral view, body a yellow-buff; overlain by medium and dark browns above the midline, light areas more prominent below midline, dark areas extending to near the pelvic- and anal-fin origins, and around the caudal peduncle; small black melanophores scattered across sides, readily observed below midline; ventral surface yellow-buff; scattered melanophores, more numerous near pelvic and pectoral-fin origins; oral disc and barbels cream (Ref. 116018). Dorsal and pectoral spines and rays light brown totranslucent; bases of dorsal, pectoral, and anal fins marked with medium brown triangle; brown patches at mid-length of pectoral, dorsal, and anal fins; pelvic fins cream; small brown spot at mid-length; adipose fin cream; brown semicircular marking at origin and near base at mid-length; caudal fin cream; two dark areas near base and extending into the upper and lower lobes of the caudal fin (Ref. 116018).

Dorsal spines (total): 2; Dorsal soft rays (total): 5 - 6; Analspines: 0; Analsoft rays: 9 - 10

This species is relatively abundant in its preferred habitat of flowing water with larger rocks and woody debris (Ref. 116018).

This species is relatively abundant in its preferred habitat of flowing water with larger rocks and woody debris (Ref. 116018).

fisheries: