Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchii (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Somniosidae (Sleeper sharks)
Etymology: Scymnodalatias: scymno-, referring to previous placement in Scymnodon; dalatias, referring to lack of dorsal spines like most sharks in the family Dalatiidae (sometimes included within Somniosidae) (See ETYFish); albicauda: albus (L.), white; cauda (L.), tail, referring to white markings on caudal fin (See ETYFish).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 150 - 510 m (Ref. 6871). Deep-water; 42°S - 50°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Indian Ocean: southern Australia. Southwest Pacific: New Zealand.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 111 cm TL male/unsexed; (Ref. 26346)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0. Grey and white, mottled with large brown or black spots; tail mostly white with black tips (Ref. 26346). Dorsal fins small, pectoral fins angular, and an asymmetric caudal fin with a dark-tipped upper lobe (Ref. 6871).

Oceanic (Ref. 6871). A rare species known only from a few specimens taken by tuna longliners and trawlers (Ref. 6871). Ovoviviparous (Ref. 205), with at least 59 young in a litter (Ref. 26346).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Probably ovoviviparous (Ref. 6871), with at least 59 young (Ref. 26346). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 24 June 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: bycatch

FAO - Publication: search | FishSource |

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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 7.2 - 11.8, mean 9.2 °C (based on 20 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00380 (0.00164 - 0.00880), b=3.14 (2.95 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.1 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (Fec=59).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (67 of 100).

Price category (Ref. 80766): Unknown.

Scymnodalatias albicauda Taniuchi & Garrick, 1986