Olocefali (chimere) (chimaeras) >
Chimaeriformes (Chimaeras) >
Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: hydro-, combining form of hydor (Gr.), water; lagos (Gr.), hare, i.e., “water rabbit,” probably referring to three pairs of tooth plates, which tend to protrude from the mouth like a rabbit’s incisors (See ETYFish); mccoskeri: In honor of American ichthyologist John E. McCosker (b. 1945), California Academy of Sciences, who collected and supplied holotype to the authors (See ETYFish).
Eponymy: Dr John Edward McCosker (d: 1945) is an ichthyologist and evolutionary biologist who is Senior Scientist and first Professor of Aquatic Research at California Academy of Sciences, San Francisco. [...] (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batidemersale; non migratori (Ref. 57880); distribuzione batimetrica 396 - 506 m (Ref. 57880). Deep-water; 1°N - 2°S, 92°W - 89°W (Ref. 57880)
Eastern Central Pacific: Galapagos Is. (Fernandina, Española, Marchena, San Cristóbal Is.).
Dimensione / Peso / Età
Maturità: Lm ? range ? - ? cm
Max length : 38.1 cm TL (female)
Hydrolagus with head small with short, blunt snout; second dorsal fin only slightly indented along its length; preopercular and oral lateral line canals branching from the same node off the infraorbital canal and sharing a short common branch; dorsum medium brown with numerous narrow, sharply delineated irregular circular and elongate white blotches; ventrum white to tan with extremely fine brown mottling.
Body shape (shape guide): elongated.
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Barnett, L.A.K., D.A. Didier, D.J. Long and D.A. Ebert, 2006. Hydrolagus mccoskeri sp. nov., a new species of chimaeroid fish from the Galápagos Islands (Holocephali: Chimaeriformes: Chimaeridae). Zootaxa 1328:27-38. (Ref. 57880)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00339 (0.00139 - 0.00824), b=3.07 (2.86 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.7 ±0.6 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Basso, tempo minimo di raddoppiamento della popolazione 4.5 - 14 anni (Deep-water species with large eggs and low fecundity).
Vulnerabilità della pesca (Ref.
59153): Low to moderate vulnerability (28 of 100).
🛈
