Common name(s)
Brownspotted Torpedo Ray.
Binomial
Torpedo sp. (awaiting formal description).
Synonyms
None.
Identification
A small to medium-sized torpedo ray with a subcircular disc that is slightly wider than long. Anterior margin of disc straight or almost straight, with a weak central bulge. Eyes protruding; slightly larger than spiracles. Eyes and spiracles closely separated. Spiracles rounded with multiple small pointed papillae.
Pelvic fins somewhat broad, with mildly convex posterior margins. Tail relatively long with a well developed lateral skin fold. Dorsal fins well separated. First dorsal fin tall with a rounded apex and posterior margin. First dorsal origin significantly anterior to pelvic fin insertion. Second dorsal fin smaller than first, anterior margin heavily slanted, apex narrowly rounded, posterior margin mildly convex. Caudal fin large, sub-triangular, apices narrowly rounded, posterior margin deeply convex.
Colour
Dorsum variable. Overall light brown with many large reddish-brown to dark brown spots surrounded by smaller diffuse white spots. Spots smaller towards disc margin. Brown spots may be bold and well defined or indistinct, leading to a mottled appearance. Ventrum pale.
Size
Maximum length unknown.
Conservation Status
DATA DEFICIENT
The brownspotted torpedo ray is an undescribed species that has not yet been assessed. Like other torpedo rays from West Africa, this species is probably caught as bycatch and retained in some areas such as Senegal. Other species in the region have undergone significant declines (between 50-79% over three generation lengths) and are assessed as Endangered.
Habitat
Sub-temperate to sub-tropical seas. Benthic on soft sandy substrates and rocky reefs. At 15-20m.
Distribution
Eastern Atlantic. Confirmed in Senegal and Ivory Coast. Probably occurs throughout West Africa.
Reproduction
Aplacental viviparous like other torpedo rays. specifics unknown.
Diet
Probably small benthic invertebrates and fishes.
Behavior
The brownspotted torpedo ray is active nocturnally.
Reaction to divers
Easy to approach. Will swim away if uncovered or harassed. May try to shock divers when threatened.
Diving logistics
This is a poorly known torpedo ray that I have only seen at night at a dive site named Meoune Reef off Dakar, Senegal.
There have also been sightings at offshore oil rigs near Abidjan in the Ivory Coast.
What’s new
View our full list of updates
Similar species
Marbled Torpedo (Torpedo marmorata) An extremely variable species than usually has a more variegated pattern, but may appear quite similar.