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Carcharhinus signatus (Poey, 1868)
NIGHT SHARK
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Carcharhinus signatus
© Copyright Photographer/SFTEP, 2002 · 0
Carcharhinus signatus

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Carcharhinus signatus
www.fao.org Copyright Michel Lamboeuf · 0
Carcharhinus signatus
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Overview
Main identification features
  • slender
  • low ridge between dsds - elongate rear tips
  • long, narrow, pointed snout
  • top teeth - oblique tip, serrated at rear
Body fusiform and stout; eyes somewhat large, nictitating eyelid present; snout elongate, narrow, pointed; nasal flap short with narrow base mouth small; lower teeth with a single narrow upright point, upper teeth with oblique point, rear edge serrated; very short labial folds; spiracles absent; gill slits short, last two over pectoral fin base; first dorsal low, front edge weakly convex, rear margin concave, with an elongate rear tip, front of base over rear of pectoral fin margin; second dorsal very small, with an elongate rear tip, base over anal fin; pectoral fins long, narrow; low ridge present between dorsal fins; no keel on tail base.

Greyish blue above with scattered black spots, greyish white below, eyes green, mouth white.

Size: 280 cm

Coastal and semi-oceanic

Depth: 0 - 600 m

Found on both sides of the Atlantic; unconfirmed reports from the coast of Panama in the eastern Pacific.


Attributes
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 600 m.
Depth Range Min: 0 m.
Diet: octopus/squid/cuttlefish; bony fishes.
Eastern Pacific Range: Northern limit=9; Southern limit=3; Western limit=-83; Eastern limit=-78; Latitudinal range=6; Longitudinal range=5.
Egg Type: Live birth.
Feeding Group: Carnivore.
FishBase Habitat: Bentho-Pelagic.
Global Endemism: East Pacific + Atlantic (East +/or West); TEP non-endemic; East Pacific + all Atlantic (East+West); All species.
Habitat: Water column.
Inshore Offshore: Offshore; Inshore; In & Offshore.
IUCN Red List: Not evaluated / Listed.
Length Max: 280 cm.
Regional Endemism: Tropical Eastern Pacific (TEP) non-endemic; Eastern Pacific non-endemic; Continent only; Continent; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Surface; Near Surface; Mid Water; Near Bottom; Bottom + water column; Bottom;


Names
Scientific source:

Links to other sites

References
  • Poey, F., 1868., Synopsis piscium cubensium. Catalogo Razonado de los peces de la isla de Cuba., Repertorio Fisico-Natural de la Isla de Cuba, 2:279-484.

Acknowledgements

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


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Updated: 2024-03-28 13:51:18 gmt
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