Mud sleeper (Butis koilomatodon)

Scientific name: Butis koilomatodon Bleeker, 1849

Mud sleeper (Butis koilomatodon)

The Mud sleeper (Butis koilomatodon) is a freshwater fish of the family Eleotridae. Native range: Indo-Pacific, Delagoa Bay, Mozambique and Madagascar to China and Philippines. Eastern Atlantic: Port Harcourt (Niger delta in Nigeria).

Biology

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 8. Dark brown, scales edged in dark brown; body with 4-5 oblique bands; anterior part of 1st dorsal fin dark, 2nd dorsal and caudal fin with alternating dark brown and white spots, anal and pelvic fins dusky to black, pectorals clear. Females with more distinct bands and lighter fins.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Butis koilomatodon
Family
Eleotridae (Sleepers)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
10.7
Environment
Marine; freshwater; brackish; demersal; amphidromous
Climate
Tropical
Distribution
Indo-Pacific: Delagoa Bay, Mozambique and Madagascar to China and Philippines. Eastern Atlantic: Port Harcourt (Niger delta in Nigeria).
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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