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Dipturus chilensis (Guichenot, 1848)
YELLOWNOSE SKATE
Life   Vertebrata   Fish   Rajidae   Dipturus

Dipturus chilensis
© Copyright Photographer/SFTEP, 2002 · 0
Dipturus chilensis

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Dipturus chilensis
© Copyright Photographer/SFTEP, 2002 · 0
Dipturus chilensis
español

Overview
Main identification features
  • snout long, tip firm
  • disc: concave front edge
  • top: red blotches
  • belly - pores dark
Disc rhomboidal, width ~1.75 length, with concave front edges; snout long, prominent (length ~19% of total length) stiff, with concave sides; 25-35 rows of teeth on top jaw; dorsal fins close together (separated by less than distance between eyes) no tail fin; 3-5 spines on front and top of eye; 1 large solitary spine on mid-nape; middle of back with or without small denticulations; tail with 10-21 thorns from region above origin of pelvic fins rearwards; 1-2 small spines at edge of disc between snout and pectoral.

Grey above, with a few whitish and red-brown blotches, a pair of larger, darker red-brown blotches on each pectoral fin; belly white with grey blotches or grey with white blotches, with dark pores.

Size: to at least 170 cm.

Habitat: on soft bottoms.

Depth: 30-150 m.

Argentina; and (possibly) Ecuador to Chile in the eastern Pacific.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo); South Temperate (Peruvian Province ).
Depth Range Max: 150 m.
Depth Range Min: 30 m.
Diet: mobile benthic worms; mobile benthic crustacea (shrimps/crabs); mobile benthic gastropods/bivalves; octopus/squid/cuttlefish; bony fishes.
Eastern Pacific Range: Northern limit=-2; Southern limit=-9; Western limit=-82; Eastern limit=-79; Latitudinal range=7; Longitudinal range=3.
Egg Type: Benthic; No pelagic larva; No pelagic phase.
Feeding Group: Carnivore.
FishBase Habitat: Demersal.
Global Endemism: TEP non-endemic; East Pacific endemic; All species.
Habitat: Mud; Soft bottom (mud, sand,gravel, beach, estuary & mangrove); Soft bottom only; Sand & gravel.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 170 cm.
Regional Endemism: Continent only; Continent; Temperate Eastern Pacific, primarily; Tropical Eastern Pacific (TEP) non-endemic; Peruvian province, primarily; All species.
Residency: Vagrant.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


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.
  • Delfin, F. T., 1902., Nuevas Especies de la Familia Rajidae., Revista Chilena de Historia Natural, 6:262-270.
  • Guichenot, A., 1848., Fauna Chilena. Peces. Pp. 137-370. In: C. Gay, Historia fisica y politica de Chile. Vol. 2, Zoologia. Paris & Santiago., Fauna Chilena, Peces,.
  • Lloris , D. and Rucabado, J., 1991., Ictiofauna del Canal Beagle (Tierra de Fuego), Aspectos Ecologicos y Analisis Biogeografico., Publicaciones Especiales Instituto Español de Oceanografia, (8):1-182.
  • McEachran , J.D.and Dunn, K.A., 1998., Phylogenetic analysis of skates, a morphologically conservative clade of Elasmobranchs (Chondrichthyes: Rajidae)., Copeia, 1998:271-290.

Acknowledgements

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


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