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FAO Species Identification Guide for Fishery Purposes Western

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Carcharhinidae 1337<br />

Carcharhinus galapagensis (Snodgrass and Heller, 1905)<br />

Frequent synonyms / misidentifications: None / None.<br />

<strong>FAO</strong> names: En - Galapagos shark; Fr - Requin de Galapagos; Sp - Tiburón de Galápagos.<br />

Diagnostic characters: A large shark. Body<br />

slender to moderately stout. Snout rounded and<br />

short, its length equal to or less than mouth<br />

width and about equal to or greater than<br />

internarial space; labial furrows short; anterior<br />

nasal flaps rudimentary; upper teeth broadly<br />

triangular, erect to moderately oblique, the<br />

anterior ones strongly serrated and with<br />

higher, broad cusps not delimited from the<br />

bases; lower teeth with high, narrow cusps and<br />

serrations; gill slits relatively short. First dorsal<br />

fin rather high, nearly straight anteriorly, with<br />

ventral view<br />

of head<br />

upper and lower<br />

lateral tooth<br />

a narrowly rounded or pointed apex, its origin over inner margins of pectoral fins; second dorsal fin<br />

moderately high, with a concave posterior margin, its inner margin less than twice the fin height and<br />

its origin over or slightly anterior to that of anal fin; pectoral fins nearly straight and apically pointed. A<br />

low interdorsal ridge present. Colour: dark grey above, light below, fins plain except <strong>for</strong> slightly dusky<br />

tips in some individuals.<br />

Size: Maximum total length about 3.7 m; commonly to 3 m; size at birth about 57 to 78 cm.<br />

Habitat, biology, and fisheries: A wide-ranging, inshore and offshore shark often preferring the waters<br />

around islands to those of the continental shelf. Viviparous, number of fetuses 6 to 16. Feeds on bottom<br />

fishes, including basses, flatheads, eels, and flatfishes; also on cephalopods and bivalves. An aggressive<br />

species, dangerous to people. No in<strong>for</strong>mation on utilization or fishing methods are available, but likely to<br />

figure in shark fisheries because of its abundance in habitats if prefers.<br />

Distribution: Widely distributed<br />

in tropical and subtropical<br />

seas, but of spotty<br />

occurrence in the Pacific and<br />

Atlantic, primarily off island<br />

groups but offshore in<br />

continental waters in the<br />

eastern Pacific.

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