Elasmobranchii (sharks and rays) > Squaliformes
(Sleeper and dogfish sharks) > Somniosidae
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); oligodon: oligos (Gr.), few or scanty; odontos (Gr.), tooth, referring to fewer teeth in upper jaw compared with congeners. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 0 - 200 m (Ref. 10905). Subtropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Holotype taken from a depth ranging from 0-200 m (Ref. 10905).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Distinct pairing with embrace (Ref. 205).
Kukuev, E.I. and I.I. Konovalenko, 1988. Two new species of sharks of the genus Scymnodalatias (Dalatiidae) from the North Pacific and Southeastern Pacific Oceans. J. Ichthyol. 28(1):122-126. (Ref. 10905)
IUCN Red List Status (Ref. 126983)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 11.2 - 15.2, mean 12.1 °C (based on 29 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00169 - 0.00897), b=3.13 (2.94 - 3.32), 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 assumed to be <100).
Fishing Vulnerability (Ref. 59153
): High vulnerability (58 of 100).