Elasmobranchii (hajar och rockor) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Triakidae (Houndsharks) > Galeorhininae
Etymology: Hemitriakis: hemi-, from hemisys (Gr.), half, being a genus that Herre believed was “most closely related” to Triakis (See ETYFish); abdita: Latin for hidden, referring to the close external similarity of this sibling species to H. falcata (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina djupbottenlevande; djupintervall ? - 225 m (Ref. 26282). Deep-water
Western Central Pacific: Coral Sea off Queensland, Australia and from New Caledonia.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 59.6 cm TL hane/ej könsbestämd; (Ref. 31238); 56.1 cm TL (female); publicerad maxvikt: 512.00 g (Ref. ); publicerad maxvikt: 512.00 g
Holotype collected from a depth of 225 m (Ref. 26282). Ovoviviparous (Ref. 50449).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
Compagno, L.J.V. and V.H. Niem, 1998. Triakidae. Houndsharks, smoothhounds, topes. p. 1297-1304. In K.E. Carpenter and V.H. Niem (eds.) FAO identification guide for fishery purposes. The Living Marine Resources of the Western Central Pacific. FAO, Rome. (Ref. 13563)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00427 (0.00180 - 0.01010), b=3.04 (2.84 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 4.1 ±0.5 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).