Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Pentanchidae
Etymology: Asymbolus: Etymology not explained, possibly a-, Latin privative, i.e., without; sym-, from syn (Gr.), together or joined; bolus (L.), lump or morsel, proposed as a subgenus of Scyliorhinus (Scyliorhinidae) distinguished in part by labial fold of upper lip not hanging over lower-jaw symphysis of A. analis and A. vincenti. (See ETYFish); parvus: Latin for small, referring to its small relative size within the genus. (See ETYFish).
More on authors: Compagno, Stevens & Last.
Environment: milieu / climate zone / depth range / distribution range
Marine; pelagic-oceanic; depth range 160 - 260 m (Ref. 36712). Subtropical
Eastern Indian Ocean: Western Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 34.9 cm TL male/unsexed; (Ref. 36712); 35.7 cm TL (female)
Morphology | Morphometrics
Very small, distinctive, pale brown body with many white spots and blotches; dark brown or black spots absent. Caudal peduncle relatively thin; low anal fin. Preoral length long. Teeth very small, ridged with 5-7 cusps; small, densely imbricated, weakly tricuspidate denticles. Monospondylous centra 34-35.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Compagno, L.J.V., J.D. Stevens and P.R. Last, 1999. Australian spotted catsharks of the genus Asymbolus (Carcharhiniformes: Scyliorhinidae). Part 1: Descriptions of three new species from western Australia. p. 2-18. In P.R. Last (ed.). Australian catsharks of the genus Asymbolus (Carcharhiniformes: Scyliorhinidae). (Ref. 36712)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 11.6 - 18.4, mean 15 °C (based on 13 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00347 (0.00168 - 0.00717), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.9 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .