Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Pentanchidae
Etymology: Galeus: galeos, a small shark or dogfish according to Aristotle and others. (See ETYFish); cadenati: In honor of French ichthyologist Jean Cadenat (1908-1992), Director, Marine Biological Section of the Institut Français d’Afrique Noire (Gorée, Senegal), who described the similar G. polli in 1959. (See ETYFish).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range ? - 439 m (Ref. 13292). Deep-water
Western Central Atlantic: Panama and Colombia (Ref. 244). Also Venezuela and possibly Trinidad and Tobago (Ref. 5217).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Holotype taken from a depth of 439 m (Ref. 13292).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Howe, J. and V.G. Springer, 1993. Catalog of type specimens of recent fishes in the National Museum of Natural History, Smithsonian Institution, 5: Sharks (Chondrichthyes: Selachii). Smithson. Contrib. Zool. 540:19. (Ref. 13292)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00173 - 0.00727), 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 ±0.2 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).