This website uses cookies to enhance your browsing experience and ensure the functionality of our site. For more detailed information about the types of cookies we use and how we protect your privacy, please visit our Privacy Information page.

×

Cookie Settings

This website uses different types of cookies to enhance your experience. Please select your preferences below:

Mastacembelus taiaensis
Mastacembelus taiaensis (Travers, 1992)

Family:  Mastacembelidae (Spiny eels)
Max. size:  29 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Africa: Forecariah River basin in Guinea and coastal basins in Sierra Leone (Ref. 57415), including the Taia, Moyambe and Sherbro (Ref. 7394).
Diagnosis:  Dorsal spines (total): 28-30; Dorsal soft rays (total): 116-131; Anal soft rays: 115-127; Vertebrae: 98-107. Diagnosis: 1st dorsal spine situated before, above or just posterior to posterior edge of pectoral fin; as a result distance from posterior edge of pectoral fin to anterior origin of 1st dorsal spine relatively short, (-6.6) to 6.0% HL (m=0.8); 1 strong pre-orbital spine; 3-4 pre-opercular spines; origin of 1st dorsal spine situated near, before or posterior to posterior edge of pectoral fin; post-anal length 53.1-57.9% SL (m=55.8), increasing with size, longer than preanal length, 40.9-46.7% SL (m=43.4), decreasing with size; distance from anterior border of snout to last externally visible dorsal spine, between 44.3-51.5% SL (m=48.5), comparable to distance from anterior border of snout to last externally visible anal spine, 44.6-51.5% SL (m=48.0), both decreasing with size; 7-10 caudal fin rays; 5-6 predorsal vertebrae; 32-34 abdominal vertebrae; 0 in-between vertebrae; 64-74 caudal vertebrae (Ref. 57415). Coloration: uniformly light brown overall background colour; dark brown band originating at base of rostral appendage, passing through eye, above pectoral fin and continuing along lateral side of body and tail; lateral dark brown band with a battlement-like upper edge generally well delimited and well contrasted from lighter brown upper sides; lower edge of dark brown band not well delimited; lower sides, eventually, with a few light brown spots; ventral surface of head, belly and abdomen uniformly light brown; dorsal, caudal and anal fins white, transparent of overall background colour with dark brown irregular markings; dorsal and anal fin base generally with a series of large dark brown spots; pectoral fins white of overall background colour with a few dark brown spots; unpaired fins become darker with increasing standard length/ size of specimens; minor size-related colour pattern changes, notably unpaired fins darkening with size due to an increase in number of dark brown spots; nevertheless, outermost border of unpaired fins remains white (Ref. 57415).
Biology:  Maximum reported TL was 304mm (Ref. 57415).
IUCN Red List Status: Near Threatened (NT); Date assessed: 27 March 2020 (B2ab(iii)) Ref. (130435)
Threat to humans:  harmless


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.