Elasmobranchii (sharks and rays) >
Carcharhiniformes (Ground sharks) >
Pentanchidae (Deepwater catsharks)
Etymology: Galeus: galeos, a small shark or dogfish according to Aristotle and others (See ETYFish); longirostris: longus (L.), long; rostris, from rostrum (L.), snout, referring to its “considerably longer” snout compared with congeners known at the time (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathydemersal; depth range 440 - 520 m (Ref. 58018). Deep-water
Northwest Pacific: Amami-oshima, the Ogasawara and Izu islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 80.3 cm TL male/unsexed; (Ref. 12694)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tachikawa, H. and T. Taniuchi, 1987. Galeus longirostris, a new species of the sawtail catshark from Japan. Jap. J. Ichthyol. 33(4):352-359. (Ref. 12694)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00347 (0.00171 - 0.00701), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophic level (Ref. 69278) |
4.1 ±0.2 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) |
Moderate vulnerability (39 of 100). 🛈 |