Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Pentanchidae
Etymology: Apristurus: Greek, a = without + Greek, pristis = saw + Greek, oura = tail (Ref. 45335); australis: Named for its geographic distribution, currently known only from southern hemisphere around Australia.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 486 - 1035 m (Ref. 76943). Subtropical
Indian and Pacific coasts of Australia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 45 - 55 cm
Max length : 61.6 cm TL male/unsexed; (Ref. 76943)
Morphology | Morphometrics
This species has the following characters: flattened prenarial snout, apparently longer than interorbital width; furrows of upper labial much longer than the lower ones; pectoral fin widely expanding posteriorly, with outer margin a little longer than P1-P2 space; short abdomen, P1-P2 space narrower than preorbital length or anal fin base length; origin of first dorsal-fin just above or slightly anterior to pelvic-fin insertion; 50–64 and 48–68 tooth rows on upper and lower jaws, respectively; teeth with 5 or more cusps, including the anterior ones; egg capsule with no coiled tendrils on anterior and posterior ends, posterior end tapering toward tip; color preserved in alcohol is uniformly pale brownish to light greyish, sometimes light yellowish brown; the dorsal side of body is a little darker than ventral side (Ref. 76943).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Sato, K., K. Nakaya and M. Yorozu, 2008. Apristurus australis sp. nov., a new long-snout catshark (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from Australia. pp. 113-122. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper No. 22. (Ref. 76943)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2 - 8.7, mean 6.7 °C (based on 238 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00147 - 0.00681), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.9 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Fec assumed to be < 10).
Vulnerability (Ref. 59153
): Moderate vulnerability (36 of 100) .