Numbray

Numbray
Conservation status
	; Data Deficient (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	Torpediniformes
Family:	Narkidae
Genus:	Narke
Species:	N. dipterygia
Binomial name
	Narke dipterygia; (Bloch & Schneider, 1801)
	Geographic range
Synonyms
	Raja dipterygia Bloch & Schneider, 1801

The numbray or spottail sleeper ray (Narke dipterygia) is a species of electric ray in the family Narkidae. It may be found in shallow muddy estuaries or offshore depths. It is a weak swimmer that lies on the bottom, commonly buried. It eats small marine invertebrates and fish. It pounces on its prey and wraps its body around its prey, killing or stunning it with electrical shocks.^[1] It has been observed that Numbrays are not as common as other types of rays in the area around the Indian Ocean. This can be attributed to the relatively large doubling time for a population, reaching up to 18 years.

References

Momeninejad, Ali & Keivany, Yazdan & Sultan-Mohammadi, Vahid. (2014). First record of the numbray, Narke dipterygia (Bloch & Schneider, 1801) from Iran (Elasmobranchii: Narkidae). Iranian Journal of Ichthyology. 1. 298-301

^ Parish, Steve. Handbook of Australian Wildlife.

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[1] Parish, Steve. Handbook of Australian Wildlife.

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