Mastacembelus Reygeli (Mastacembelus reygeli) is a ray-finned fish of the family Mastacembelidae. It inhabits freshwater waters. This species can reach a maximum total length of 25.4 cm. It occurs at depths between 0 and 10 metres. With a trophic level of 3.8, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.
Dorsal spines (total): 34 - 38; Dorsal soft rays (total): 54 - 70; Anal spines: 3; Anal soft rays: 56 - 71; Vertebrae: 78 - 83. Distinguished from its congeners in Lake Tanganyika by the following characters: short post-anal length 36.6-44.8% SL ( vs. 50.6-60.5 % SL in Mastacembelus ophidium and Mastacembelus polli); brown background color without or with only a limited and scattered dark brown reticulate pattern ( vs. yellow background color with a series of large, saddleshaped, dark brown spots on the dorso-lateral surface of head, body and tail region in Mastacembelus ellipsifer, Mastacembelus plagiostomus and Mastacembelus zebratus); higher number of dorsal spines 34-38 (vs.
Behavioural data for Mastacembelus Reygeli is currently being reviewed.
Freshwater; benthopelagic; depth range 0 - 10 m . Tropical endemic to Lake Tanganyika, from Kalemie (Democratic Republic of Congo) to Kigoma (Tanzania) (Ref.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 7 records indexed .
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