Elasmobranchii (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
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); rubiginosus: Latin for rusty, referring to its body coloration (See ETYFish).
More on authors: Last, Gomon & Gledhill.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-oceanic; depth range 25 - 540 m (Ref. 36718). Subtropical
Eastern Indian Ocean: Australia
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 39.3 cm TL male/unsexed; (Ref. 36718); 41.9 cm TL (female)
Short description
Identification keys | Morphology | Morphometrics
Pale brownish medium-sized body with orange brown spots; indistinct brownish blotch beneath eye; between each dark saddle on dorsal midline a cluster of spots; caudal peduncle short and slender; head and trunk broad, anal-fin base long.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, paired eggs are laid. Embryos feed solely on yolk (Ref. 50449).
Last, P.R., M.F. Gomon and D.C. Gledhill, 1999. Australian spotted catsharks of the genus Asymbolus (Carcharhiniformes: Scyliorhinidae). Part 2: Descriptions of three new, dark-spotted species. p. 19-35. In P.R. Last (ed.). Australian catsharks of the genus Asymbolus (Carcharhiniformes: Scyliorhinidae). (Ref. 36718)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: bycatch
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 12.1 - 17, mean 14.6 °C (based on 55 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5020 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00175 - 0.00721), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.0 ±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 (32 of 100).