IUCN threat status:

Near Threatened (NT)

Comprehensive Description

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  Common names: shark (English), tiburón (Espanol)
Carcharhinus falciformis (Müller & Henle, 1839)

Silky shark

Slender-bodied (body depth 11.5-17.5% of TL); snout moderately long, flat and slightly pointed, length in front of mouth 6.9-9.3% of TL; large eyes; top teeth serrated on tip and base, 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 strongly curved trailing edge; origin of second dorsal ~ over anal origin, height of fin ~ ½ its length; 2nd  dorsal and anal fins with long bases and long free rear tips; pectoral long, narrow, curved.

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 350 cm; size at birth 70-87 cm.

Habitat: found inshore but more abundant offshore.

Depth: 0-500 m.

Circumtropical; central Baja and the Gulf of California to northern Peru and the oceanic islands.


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© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

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