Dark blind ray (Benthobatis moresbyi)

Scientific name: Benthobatis moresbyi Alcock, 1898

Dark blind ray (Benthobatis moresbyi)

The Dark blind ray (Benthobatis moresbyi) is a marine fish of the family Narcinidae. Native range: Western Indian Ocean, Arabian and Laccadive seas (off Travancore coast).

Biology

Dark brown dorsal and ventral surfaces; ventral entirely dark. Snout elongated, usually more than 1/3 in disc length (preocular snout region 40% in disc length in lectotype). Disc oval, longer than wide. Dorsal fins with long, fleshy bases which are much longer than height of the fin (dorsal fin length 50-55% of fin height). Origin of first dorsal well anterior to posterior tip of pelvic fins, close to mid pelvic length; dorsal fins close together, interdorsal space less than length of dorsal bases. Distance between second dorsal and caudal fins much smaller than length of base of second dorsal fin. Caudal fin extremely elongated, reaching almost 1/2 tail length as measured from posterior tips of pelvic fins; caudal fin length 40.4% of distance between cloaca and caudal fin tip.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Benthobatis moresbyi
Family
Narcinidae (Numbfishes)
Order
Torpediniformes (Electric rays)
Class
Elasmobranchii (Sharks and Rays)
Maximum length
35.1
Depth range
787–1071 m (2582–3514 ft)
Environment
Marine; bathydemersal; depth range 787 - 1071 m
Climate
Deep-water
Distribution
Western Indian Ocean: Arabian and Laccadive seas (off Travancore coast).
Conservation status (IUCN)
Data deficient (DD)
Threat to humans
Harmless
Resilience
Low, minimum population doubling time 4.5 - 14 years (Assuming fecundity

Sources

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

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