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Scymnodon ringens  Barbosa du Bocage & de Brito Capello, 1864

Knifetooth dogfish
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Native range | All suitable habitat | Point map | Year 2100
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Scymnodon ringens   AquaMaps   Data sources: GBIF OBIS
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Image of Scymnodon ringens (Knifetooth dogfish)
Scymnodon ringens
Picture by Serrano, A.

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Elasmobranchi (squali e razze) (sharks and rays) > Squaliformes (Bramble, sleeper and dogfish sharks) > Somniosidae (Sleeper sharks)
Etymology: Scymnodon: Greek, skymnos, -ou = little lion + Greek, odous = teeth (Ref. 45335).

Ambiente / Clima / Range Ecologia

; marino batipelagico; distribuzione batimetrica 200 - 1600 m (Ref. 247), usually 550 - 1450 m (Ref. 10717).   Deep-water, preferred 19°C (Ref. 107945); 58°N - 15°N

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Eastern Atlantic: along the slope from Scotland to Spain, Portugal, Senegal. Southwest Pacific: New Zealand (Ref. 26346).

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 110 cm TL maschio/sesso non determinato; (Ref. 247)

Short description Morfologia | Morfometria

Spine anali 0; Raggi anali molli: 0. Black in color; small dorsal fin spines; short snout; small lanceolate teeth without cusplets in upper jaw and huge high, knife-cusped cutting teeth in lower jaw; mouth very wide and broadly arched; caudal fin with weak subterminal notch and no lower lobe (Ref. 247).

Biologia     Glossario (es. epibenthic)

A rare species (Ref. 26346) inhabiting continental slopes (Ref. 247). Usually mesopelagic although taken most often near the bottom (Ref. 10717). Its razor-edged lower teeth is used to attack and dismember large prey (Ref. 247). Ovoviviparous (Ref. 205). Utilized dried salted for human consumption and for fishmeal (Ref. 247).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Probably ovoviviparous (Ref. 247). Distinct pairing with embrace (Ref. 205).

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Traumatogenic




Human uses

Pesca: scarso interesse commerciale
FAO(pesca: production; publication : search) | FisheriesWiki | Sea Around Us

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