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Gymnura bimaculata (Norman, 1925)

Twin-spot butterfly ray
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Image of Gymnura bimaculata (Twin-spot butterfly ray)
Gymnura bimaculata
Picture by The Fish Database of Taiwan

Classification / Names Populärnamn | synonymer | Catalog of Fishes(Släkte, Arter) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (hajar och rockor) (sharks and rays) > Myliobatiformes (Stingrays) > Gymnuridae (Butterfly rays)
Etymology: Gymnura: Greek, gymnos = naked + Greek, oura = tail (Ref. 45335).
More on author: Norman.

Environment: milieu / climate zone / depth range / distribution range Ekologi

marina bottenlevande. Subtropical

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Northwest Pacific: known from the type locality, Yenting, Chekiang Province, China.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 28.0 cm SL hane/ej könsbestämd; (Ref. 50166)

Biologi     Ordlista (t.ex. epibenthic)

Ovoviviparous (Ref. 50449).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | referenser | Koordinator : McEachran, John | Medarbetare

Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)

IUCN Red List Status (Ref. 130435: Version 2024-1)


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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