Elasmobranchi (squali e razze) (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Carcharhinidae (Requiem sharks)
Etymology: Lamiopsis: Etymology not explained nor evident, perhaps Gill thought L. temminckii resembled (-opsis, Greek for appearance) members of the family Lamnidae (Lamia = Lamna) (See ETYFish); tephrodes: -oides, Greek suffix meaning like, resembling, having the form of: tephritis (L.), an ash-colored precious stone, referring to its “more or less uniform gray” coloration in alcohol (See ETYFish).
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale. Tropical
Distribuzione
Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri
Indo-Western Pacific: Borneo, Malaysia (Penang), Thailand (Phuket) and Indonesia (Java and Kalimantan). Extent of ocurrence possibly reaching off southern China and more widespread in the Indo-Malay Archipelago, but validated records need to be obtained (Ref. 84282).
Length at first maturity / Size / Peso / Age
Maturity: Lm ?, range 145 - ? cm
Max length : 140 cm TL maschio/sesso non determinato; (Ref. 130455); peso massimo pubblicato: 13.5 kg (Ref. 130455)
Short description
Chiavi di identificazione | Morfologia | Morfometria
This species is distinguished by the following set of characters: moderately long snout; similarly-sized dorsal fins; when mouth is closed, the lips mostly concealing teeth, except near symphysis; upper anterior teeth broadly triangular and serrated; lower anterior teeth long, narrow, erect, with non-hastate cusps which are either smooth or finely serrated; tooth row counts 33-40/34-40; interdorsal space 16.2-20.4% TL; pectoral-fin anterior margins weakly convex, its length 12.4-14.4% TL; pelvic fin anterior margins 7.4-9.3% TL and 48-53% of pectoral anterior margin; first dorsal fin is relatively small, raked, sub-triangular, with nearly straight to shallowly concave posterior margin, its free rear tip just anterior to pelvic-fin origins, length 14.9-17.1% TL, height 5.6-8.1% TL; second dorsal fin large, sub-triangular, almost as high as first dorsal fin, length 11.8-14.3% TL, height 4.8-7.3% TL and 83-93% of first dorsal-fin height; anal-fin height 3.8-5.6% TL and 70-85% of second dorsal-fin height, base 78-98% of second dorsal-fin base; 174-181 total vertebral centra, precaudal 98-100, monospondylous precaudal centra 50-51 and 28-29% of total centra, diplospondylous precaudal centra 48-49 and 27-28% of total centra, diplospondylous caudal counts 75-81 and 43-45% of total counts; demarcation of light and dark colour surfaces (waterline) on head strong, extending from lateral angle of snout to upper margin of eye, dark surface not visible in ventral view of head; fins lack distinct black or white tips or markings (Ref. 84282).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
White, W.T., P.R. Last, G.J.P. Naylor and M. Harris, 2010. Resurrection and redescription of the Borneo broadfin shark Lamiopsis tephrodes (Fowler, 1905) (Carcharhiniformes: Carcharhinidae). pp. 45-60. In P.R. Last, W.T. White and J.J. Pogonoski (eds). Descriptions of new sharks and rays from Borneo. CSIRO Marine and Atmospheric Research Paper no. 32. (Ref. 84282)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00380 (0.00213 - 0.00677), b=3.07 (2.92 - 3.22), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.7 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Very high vulnerability (84 of 100).
