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Species: Carcharhinus falciformis, Silky shark

All Families:   All Genera:   All Species:

slender
snout flat, rounded
D1 small, orgin well behind pectoral, rear edge convex
low ridge between Ds
D2 < A, both low, free rear tips long
top front teeth serrated, notched both sides
pectoral large, curved

Carcharhinus falciformis (Müller & Henle, 1839)

Silky shark

Slender-bodied (body depth 11.5-17.5% of TL); snout flat and rounded, < mouth width; large round eyes; top teeth serrated on tip (fine) and base (coarse), straight (at front) to slightly oblique (on sides of jaws), with notch on outer side, narrow points, lower teeth with narrow points; a low, narrow ridge on back between dorsal fins; origin of first dorsal fin behind free rear tips of pectoral fin; first dorsal fin small, low, (height 5.2-9.9% of TL), with narrowly rounded tip and convex rear edge; origin of second dorsal ~ over anal origin, height of fin ~ ½ its length; 2nd dorsal < anal fin, both with long bases and long free rear tips; pectoral long, narrow, curved; tail base without keel; tail fin strongly asymmetrical, with well developed lower lobe, undulating ridge along dorsal surface of top lobe, and a notch under tip of that lobe.

Grey to dark grey dorsally, shading to white ventrally, sometimes with faint band of white invading grey of upper abdomen; first dorsal fin unmarked; second dorsal, anal, lower caudal lobe and pectoral fins may have dusky tips.

Grows to 330 cm

Habitat: found inshore but more abundant offshore.

Depth: 0-520 m.

Circumtropical; the Eastern United States to Brazil.


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Salinity
  • Marine
  • Marine Only
Inshore/Offshore
  • In & Offshore
  • Inshore
  • Offshore
Water Column Position
  • Surface
  • Water column only
  • Mid Water
  • Near Surface
Habitat
  • Water column
FishBase Habitat
  • Pelagic
Feeding Group
  • Carnivore
  • Data
Diet
  • Bony fishes
  • Data
  • Octopus/squid/cuttlefish
  • Pelagic crustacea
Egg Type
  • Live birth
  • No pelagic larva
  • Data
Global Endemism
  • Circumtropical ( Indian + Pacific + Atlantic Oceans)
  • Greater Caribbean non-endemic
Regional Endemism
  • Island (s)
  • Extends South of GC
  • Also in Brazil
  • Continent
  • Continent + Island (s)
  • GC non-endemic
  • Extends North of GC
  • Extends N + S of GC
Residency
  • Resident
Climate Zone
  • Tropical (10-23N, Nicaragua / Cuba)
  • Temperate (>35N)
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
IUCN Red List
  • Listed
  • Near threatened
CITES
  • Not listed
Length Max (cm)
  • 330
Depth Range Min (m)
  • 0
Depth Range Max (m)
  • 520