Elasmobranchii (hajar och rockor) (sharks and rays) >
Torpediniformes (Electric rays) >
Narcinidae (Numbfishes)
Etymology: Narcine: Greek, narke = numbness (Ref. 45335); oculifera: Named for its bulging eyes [oculus = eye; fera = to bear or carry].
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina bentopelagisk; djupintervall ? - 25 m (Ref. 114953). Tropical; 11°N - 24°N, 50°E - 60°E (Ref. 114953)
Western Indian Ocean: Gulf of Oman and Gulf of Aden.
Size / Vikt / Age
Maturity: Lm ?  range ? - 32.5 cm
Max length : 35.0 cm SL hane/ej könsbestämd; (Ref. 41511)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Ryggkotor: 109. Dorsal with irregular reticulated light brown to reddish-brown pattern over disc, pelvic fins and tail, demarcating white or creamy-white oval; reniform and circular spots of variable sizes over disc, and small white spots on dorsal and caudal fins. Eyes large and bulging. Circular spiracles with markedly elevated rims and complete antero-lateral margin. Interorbital distance greater than interspiracular distance. First dorsal fin greater than second in height. Individual teeth with small lateral cusplets; upper and lower tooth bands roughly equal in width and broadly rounded.
Occurs above sandy bottom near rocky reef areas. Females reaches maturity at 32 cm TL, males at ca. 24 cm TL; born at ca. 12 cm TL (Ref. 114953).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
de Carvalho, M.R., L.J.V. Compagno and J.K.L. Mee, 2002. Narcine oculifera: a new species of electric ray from the gulfs of Oman and Aden (Chondrichthyes: Torpediniformes: Narcinidae). Copeia 2002(1):137-145. (Ref. 41511)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00470 - 0.02937), b=2.88 (2.66 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (33 of 100).