Teleostei (teleosts) >
Perciformes/Scorpaenoidei (Scorpionfishes) >
Platycephalidae (Flatheads)
Etymology: ventralis: Name from Latin, meaning ‘of the belly’, referring to the species’ characteristic long pelvic fin.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic. Tropical
Western Pacific: Northeastern Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 32.8 cm SL male/unsexed; (Ref. 86254)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 10; Dorsal soft rays (total): 11; Anal spines: 0; Anal soft rays: 12. This species is characterized by the following: 91-104 anteroventrally slanted oblique scale rows above lateral line; snout length 30.9-32.4% HL, markedly decreasing proportionally with growth; pectoral fin length 15.8-18.6% SL; pelvic fin length 26.2-28.2% SL; nasal bone with tubercles; dorsal surface of head with small, round, brown spots, body without dark spots; pelvic fin with small brown spots (Ref. 86254).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Imamura, H. and M.F. Gomon, 2010. Taxonomic revision of the genus Ratabulus (Teleostei: Platycephalidae), with descriptions of two new species from Australia. Memoirs of Museum Victoria 67:19-33. (Ref. 86254)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00230 - 0.00908), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (30 of 100).