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Mustelus mento Cope, 1877
SPECKLED SMOOTH-HOUND
Speckled smoothhound

Life   Vertebrata   Fish   Triakidae   Mustelus

Mustelus mento
© Copyright Ross Robertson, 2006 · 12
Mustelus mento

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Mustelus mento
© Copyright Photographer/SFTEP, 2002 · 0
Mustelus mento
Mustelus mento
www.fao.org Copyright Michel Lamboeuf · 0
Mustelus mento
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Overview
Main identification features
  • fins blunt
  • juveniles: dark bars
  • flank: white spots
Elongate, hunched body; short head pointed snout; mouth angular, short; teeth irregularly rounded, without points; width between eyes = 4.5-5.6% of total length; eyes horizontal ovals, with ventral nictitating membranes; 5 gill slits, last 2 over pectoral fin base; 2 large dorsal fins, second slightly smaller than first; first dorsal a blunt, broad triangle, nearer pelvic than pectoral; rear edges of dorsals denticled; distance between dorsal fins = 17-22% of total length; anal fin smaller than and with origin under middle of second dorsal; mouth angular; tail strongly asymmetrical, lower lobe not expanded or with concave rear edge; fins with blunt tips; skin denticles on flank pointed ovals with a single point, with or without canal on base.

Grey to grey-brown above, paler below; sides with many white spots; juveniles with dark bars.

Size: 130 cm.

Habitat: upper continental shelf, demersal.

Depth: 15-50 m.

SW Atlantic and SE Pacific (Colombia to Chile, Galapagos Islands).


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 50 m.
Depth Range Min: 15 m.
Diet: mobile benthic crustacea (shrimps/crabs); bony fishes; mobile benthic worms; mobile benthic gastropods/bivalves.
Eastern Pacific Range: Northern limit=6; Southern limit=-9; Western limit=-93; Eastern limit=-78; Latitudinal range=15; Longitudinal range=15.
Egg Type: Live birth; No pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: New world (East Pacific + West Atlantic); East Pacific + Atlantic (East +/or West); TEP non-endemic; All species.
Habitat: Mud; Sand & gravel; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 130 cm.
Regional Endemism: Island (s); Continent; Continent + Island (s); Tropical Eastern Pacific (TEP) non-endemic; Eastern Pacific non-endemic; Peruvian province, primarily; Temperate Eastern Pacific, primarily; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Mid Water; Near Bottom; Bottom + water column;


Names
Scientific source:

Links to other sites

References
  • Béarez, P., 1996., Lista de los Peces Marinos del Ecuador Continental., Revista de Biologia Tropical, 44:731-741.
  • Compagno, L.J.V., 1999., Checklist of living elasmobranchs. In Hamlett W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes., The John Hopkins University Press:471-498.
  • Compagno, L.J.V., 1984., Sharks of the World. An annotated and illustrated catalogue of shark species known to date. Part 2. Carcharhiniformes. FAO Species Catalogue., FAO Fish. Synop. No 125, 4(2):251-655.
  • Cope, E. D., 1877., Synopsis of the cold blooded vertebrata, procured by Prof. James Orton during his exploration of Peru in 1876-77., Proc. Amer. Phil. Soc., 17:33-49.
  • Fischer , W. , Krup , F. , Schneider , W. , Sommer , C. , Carpenter , K. E. and Niem, V. H., 1995., Guia FAO para la Identificacion de Especies de para los fines de la Pesca. Pacifico Centro-Oriental. Volumen II. Vertebrados - Parte 1., FAO2:647-1200.
  • Hildebrand, S.F., 1946., A descriptive catalog of the shore fishes of Peru., Bull. U.S. Nat. Mus., 189:1-530.
  • Jimenez-Prado, P., Béarez, P., 2004., Peces marinos del Ecuador continental / Marine fishes of continental Ecuador., SIMBIOE/NAZCA/IFEA tomo 1 y 2.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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