Actinopterygii (ray-finned fishes) > Scorpaeniformes
(Scorpionfishes and flatheads) > Aploactinidae
Etymology: Matsubarichthys: Because of Matsubara, icthyologist in scorpenoid fishes. He was cited by Hilgendorf, 1880, and named after Shinnosuke Matsubara, director of Imperial Fisheries in Tokyo; inusitatus: Name means unusual or rare.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal. Tropical
Western Pacific: known only from the holotype taken in Queensland, Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 1.7 cm SL male/unsexed; (Ref. )
Morphology | Morphometrics
soft rays: 4;
Vertebrae: 21. Head extremely large, depressed. Body elongate, not compressed. Caudal fin damaged (rounded, without branched rays, 10 segmented rays and 4 unsegmented). Body scales absent, except for lateral line which are extremely long and tubular; first 3 touching each other. Its distinct, densely melanic spots on the head may be a transitory larval or juvenile character but cannot be verified until larger specimens are caught (Ref. 35981).
Known only from the holotype which may be at a transitory larvae and juvenile stage with a length of 0.85 cm SL (Ref. 35981). Maximum length value is preliminary and is assumed to be twice the length of the only juvenile specimen reported.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Poss, S.G. and G.D. Johnson, 1991. Matsubarichthys inusitatus, a new genus and species of velvetfish (Scorpaeniformes: Aploactinidae) from the Great Barrier Reef. Proc. Biol. Soc. Wash. 104(3):468-473. (Ref. 35981)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.3 - 26.7, mean 25.6 °C (based on 64 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.0 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .