Scymnodon obscurus (Vaillant, 1888)

Smallmouth velvet dogfish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Taxonomic issue	Synonym of Zameus squamulosus (Günther, 1877).
Classification	Elasmobranchii \| Squaliformes \| Somniosidae
Synonyms	Centroscymnus obscurus, ... more
Common names	Smallmouth knifetooth dogfish, Squale-grogneur à queue échan., Bruja bocachica, ... more

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Image of Scymnodon obscurus (Smallmouth velvet dogfish)

Picture by Cambraia Duarte, P.M.N. (c)ImagDOP

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Compagno, L.J.V. 1984. (Ref. 247)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 70.0 cm TL male/unsexed; (Ref. 10717); 59 cm TL (female); common length : 40.0 cm TL male/unsexed; (Ref. 5217)

Length at first maturity

, range 51 -

Environment

Benthopelagic; marine; depth range 0 - 1450 m (Ref. 247), usually 550 - 1450 m (Ref. 10717)

Climate / Range

Tropical; 65°N - 36°S

Western Atlantic: northern Gulf of Mexico, Suriname, and southern Brazil. Eastern Atlantic: Iceland and Faeroe Ridge to Madeira, Morocco, Cape Verde, Senegal, and northwest Africa. Very close to Scymnodon squamulosus and might be a junior synonym of it (Ref. 247). Not in Compagno's 1999 checklist (Ref. 35766).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Usually found on or near the bottom. Feeds on bottom fishes including its congener, Scymnodon ringens, and invertebrates. Probably ovoviviparous. Utilized dried salted for human consumption and for fishmeal.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: minor commercial


More information
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Internet sources

Estimation of some characteristics with mathematical models

Phylogenetic diversity index (Ref. 82805)

PD₅₀ = 0.7500

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low to moderate vulnerability (31 of 100)	Not marketed/unknown

Entered by Carpenter, Kent E.

Modified by Bailly, Nicolas

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