Scymnodon ringens

BARBOSA DU BOCAGE & DE BRITO CAPELLO, 1864


Knifetooth dogfish
Classification: Elasmobranchii Squaliformes Somniosidae

Reference of the original description
BOCAGE, J.V.B. DU & CAPELLO, F. DE BRITO (1864)
Sur quelques espèces inédites de Squalidae de la tribu Acanthiana Gray, qui fréquentent les côtes du Portugal. Proceedings of the Zoological Society of London, 1864: 260–263

Image of the original description

Scymnodon ringens BARBOSA DU BOCAGE & DE BRITO CAPELLO, 1864

Synonyms / new combinations and misspellings
Centrophorus ringens, Scymnodon cf. ringens

Types
Scymnodon ringens
Syntype: BMNH: 1867.7.23.3


Description :


Citation: Scymnodon ringens BARBOSA DU BOCAGE & DE BRITO CAPELLO, 1864: In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 08/2020

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Scymnodon ringens BARBOSA DU BOCAGE & DE BRITO CAPELLO, 1864, © FAO, www.fish-base.org
Common names
deu \(T\) Messerzahnhai, spa Bruja, spa Tiburón bruja, fra \(T\) Squale-grogneur commun, eng Knifetooth dogfish, por Arreganhada

Short Description
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 [518].

Distribution
Eastern Atlantic: along the slope from Scotland to Spain, Portugal, Senegal. Southwest Pacific: New Zealand [578]. Source: www.gbif.org

Human uses
fisheries: minor commercial; price category: not marketed/unknown; price reliability:

Biology
Probably ovoviviparous [518]. Distinct pairing with embrace [17086].

Size / Weight / Age
110 cm TL (male/unsexed; [518])

Habitat
bathypelagic; marine; depth range 200 - 1600 m [518], usually 550 - 1450 m [20048]

Dentition
tooth formula (upper/lower): 24-25/14-15 [1131];

Links: SEM-images of teeth

Remarks
shark-references Species-ID=6443;