Diagnostic Description
provided by Fishbase
Diagnosis: Garra geba is distinguished from African congeners by the following combination of features: intermediate disc development, depressed head and gracile body; between 5 and 9 predorsal scales anterior to dorsal fin; asquamate chest, belly, and postpelvic region; posterior chamber of gas bladder small; and intestine short (Ref. 58532).Description: Garra geba is extremely gracile and elongate, greatest body depth located well anterior to dorsal fin, midway between dorsal-fin origin and snout (Ref. 58532). Head gracile and depressed, often with small circular tubercles in front of nostrils, becoming tubular beneath eyes; eyes positioned medially on head (Ref. 58532). Dorsal head profile rises steeply over snout, dorsum of head more-or-less flattened, dorsal body profile smoothly convex to dorsal-fin origin (Ref. 58532). Disc variously developed; only weekly so in smaller specimens, becoming quite well-developed with a narrow free posterior edge and partially free lateral margins in adult specimens, but never broadly papillate; disc in adults markedly wider than deep; rostral cap well developed, extending ventrally over upper jaw and with invecked ventral margin (Ref. 58532). Two pairs of barbels; maxillary barbels usually slightly longer than rostral pair (Ref. 58532). Between 37 and 39 scales along lateral line; between 5 and 9 predorsal scales anterior to dorsal fin; 2.5-3.5 scales from lateral line to origin of pelvic fin; 4.5-5.5 scales from lateral line to dorsal-fin origin; chest, belly and postpelvic region asquamate (Ref. 58532). Dorsal fin with iv,7 rays, inserted well anterior to pelvic fin, with short subacuminate tip, first and second unbranched rays longest; anal fin with iv,5 rays, with short subacuminate tip; pectoral fin with iv,11 rays, its length 19.1-22.6% of standard length, with somewhat pointed tips (Ref. 58532). Predorsal length 46.9-50.0% of standard length (Ref. 58532). Vent located relatively distant from anal fin (Ref. 58532).Colouration: Body dark dorsally, lighter brown below lateral line and ventrally (Ref. 58532). Head, snout and most of cheek and opercle dark brown; lips, gular region, posterior margin of opercle and branchiostegal membranes creamy yellow-brown; pale coloration extends postero-dorsally around eye (Ref. 58532). Dorsal-fin membrane pale cream distally, faint submarginal band of black pigment in membrane between rays, and pale cream proximally; either 4 or 5 black spots between rays in basal membrane of dorsal fin; anal fin uniformly pale creamy brown; caudal fin pale dusky brown, with median rays a darker brown; pelvic and pectoral fins uniformly pale creamy brown (Ref. 58532).
Morphology
provided by Fishbase
Dorsal spines (total): 0; Dorsal soft rays (total): 11; Analspines: 0; Analsoft rays: 9
Trophic Strategy
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Occurs in slowly flowing water over mud and sand, with some fringing grasses along riverbanks (Ref. 58532).
Biology
provided by Fishbase
Occurs in slowly flowing water over mud and sand, with some fringing grasses along riverbanks (Ref. 58532).