Elasmobranchii (sharks and rays) >
Torpediniformes (Electric rays) >
Narkidae (Sleeper rays)
Etymology: Heteronarce: Greek, heteros = other + Greek, narke = numbness (Ref. 45335).
Eponymy: Captain Dr Richard E Lloyd MB DSc (d: 1875) was a physician in the Indian Medical Service and was Surgeon Naturalist of the Marine Survey of India. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 73 - 346 m (Ref. 26165). Tropical; 14°N - 3°N, 45°E - 76°E (Ref. 114953)
Western Indian Ocean: Somalia, Socotra, Gulf of Aden to India, Arabian Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.5 cm SL male/unsexed; (Ref. 26165); 19.5 cm (female)
Found in deep waters (Ref. 26165). Known from few specimens. Size presumably exceeds 30 cm TL. Males reaches maturity at ca. 20 cm TL. Biology and reproduction unknown (Ref. 114953).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Weitkamp, D.E. and R.D. Sullivan, 2003. Gas bubble disease in resident fish of the lower Clark Fork River. Trans. Am. Fish. Soc. 132(5):865-876. (Ref. 26165)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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