Eridacnis radcliffei, Pygmy ribbontail catshark

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Eridacnis radcliffei Smith 1913

Pygmy ribbontail catshark
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Eridacnis radcliffei   AquaMaps   Data sources: GBIF OBIS
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Image of Eridacnis radcliffei (Pygmy ribbontail catshark)
Eridacnis radcliffei
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Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Élasmobranches (requins et raies) (sharks and rays) > Carcharhiniformes (Ground sharks) > Proscylliidae (Finback catsharks)
Etymology: Eridacnis: Greek, eri = very + Greek, dakno = to bite (Ref. 45335).  More on author: Smith.

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

; marin bathydémersal; profondeur 71 - 766 m (Ref. 10004).   Deep-water; 22°N - 10°S

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific: widely distributed but with spotty records from Tanzania, the Gulf of Aden, India (Gulf of Mannar, Bay of Bengal), Andaman Islands, Viet Nam, and the Philippines. The immense range of this species is striking compared to the limited ranges of other members of the genus.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 15 - 16 cm
Max length : 23.0 cm TL mâle / non sexé; (Ref. 244); 24.0 cm TL (female)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 0; Rayons mous dorsaux (Total): 0; Épines anales 0; Rayons mous anaux: 0. Caudal fin without a rippled dorsal margin and ventral lobe but with a strong subterminal notch; vertebral axis of caudal fin little raised above body axis (Ref. 13566). Dark brown with blackish markings on dorsal fins (Ref. 13566).

Biologie     Glossaire (ex. epibenthic)

Occurs over muddy bottoms, on the upper continental and insular slopes and outer shelves (Ref. 244). Feeds mainly on small bony fishes and crustaceans, with squid a lesser item in the diet (Ref. 244). One of the two smallest living sharks (Ref. 13566). Ovoviviparous (Ref. 50449), with 1 to 2 pups in a litter (Ref. 244).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Ovoviviparous, embryos feed solely on yolk (Ref. 50449). 1-2 pups per litter, size at birth about 11 cm (Ref. 244).

Référence principale Upload your references | Références | Coordinateur : Compagno, Leonard J.V. | Collaborateurs

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

Statut dans la liste rouge de l'IUCN (Ref. 123251)

  Préoccupation mineure (LC) ; Date assessed: 24 April 2018

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Harmless (Ref. 13566)





Utilisations par l'homme

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Sources Internet

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishipedia | Fishtrace | GenBank(génôme, nucléotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Bases de données nationales | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Arbre de Vie | Wikipedia(aller à, chercher) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 9.3 - 18.6, mean 12.7 °C (based on 254 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6328   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  4.1   ±0.3 se; based on diet studies.
Résilience (Ref. 120179):  Très faible, temps minimum de doublement de population supérieur à 14 ans (Fec=1).
Vulnérabilité (Ref. 59153):  Low vulnerability (13 of 100) .