Teleostei (teleosts) >
Perciformes/Scorpaenoidei (Scorpionfishes) >
Setarchidae (Deep-sea bristly scorpionfishes)
Etymology: dentatus: Name from Latin ‘dentatus’ meaning teeth, referring to the distinctive long and widely spaced jaw teeth.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 216 - 610 m (Ref. 123746). Subtropical
Western Pacific: Sulu and Timor seas, and Australia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 12.3 cm SL male/unsexed; (Ref. 123746)
Short description
Identification keys | Morphology | Morphometrics
This species is distinguished by the following set of characters: scale rows between 6th dorsal-fin spine and lateral line 6-7 (usually 7); scale rows between last dorsal-fin spine and lateral line 6-7 (7); middle postorbital scale rows 2-3 (3); caudal-peduncle depth 7.2-9.0% (modally 8.1%) of SL; interorbital width at vertical midline of eye 17.9-21.4 % (19.5%) of HL; maxillary depth 14.3-16.3% (15.7%) of HL; lower opercular spine length 25.0-28.9% (27.0%) of HL; dorsal margin of interorbital space flat; presence of nasal and parietal spines; supraocular spine rudimentary; second lacrimal spine directed anteroventrally or ventrally (directed posteroventrally only on left side of CSIRO H1167-06); tip of lower opercular spine below posterior margin of opercle; jaws with long, widely spaced canine teeth; premaxillary teeth generally in single straight row (posteriormost teeth in 2 irregular rows), totaling ca. 40 teeth. Colouration: head and body uniformly vivid red in fresh specimens, caudal fin and oral membrane uniformly pale in preserved specimens (Ref. 123746).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Wada, H., Y. Kai and H. Motomura, 2021. Revision of the resurrected deep-water scorpionfish genus Lythrichthys Jordan and Starks 1904 (Setarchidae), with description of two new species. Ichthyol. Res. 68(3):373-403. (Ref. 123746)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01047 (0.00421 - 0.02606), b=3.04 (2.82 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
