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FAO Species Identification Guide for Fishery Purposes Western

FAO Species Identification Guide for Fishery Purposes Western

FAO Species Identification Guide for Fishery Purposes Western

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1310 Sharks<br />

Hemipristis elongatus (Klunzinger, 1871)<br />

Frequent synonyms / misidentifications: Carcharhinus ellioti (Day, 1878) / Chaenogaleus macrostoma<br />

(Bleeker, 1852); Hemigaleus microstoma Bleeker, 1852.<br />

<strong>FAO</strong> names: En - Snaggletooth shark; Fr - Milandre chicor; Sp - Comadreja sobrediente.<br />

Diagnostic characters: A medium-sized shark. Body moderately slender. Snout long, its length slightly<br />

greater than mouth width, bluntly rounded toward tip; labial furrows moderately long and easily seen,<br />

the upper furrows falling well behind symphysis of lower jaw; anterior nasal flaps with a short triangular<br />

lobe; mouth long and semiparabolic, with a truncated lower symphysis, its length about 2/3 of the<br />

width; spiracles small; gill openings long, the longest over twice the eye length; teeth in upper jaw<br />

with strong, distally curved, broad and oblique cusps (except <strong>for</strong> erect-cusped symphyseal teeth),<br />

prominent distal cusplets and mesial serrations; teeth in lower jaw large but considerably narrower than<br />

uppers, with arched roots and long, strong, hooked, erect to oblique cusps that prominently protrude<br />

when mouth is closed, and basal serrations or small cusplets on more distal teeth. First dorsal fin<br />

moderately large, with a pointed apex and short inner margin, its origin slightly posterior to free rear tips<br />

of pectoral fins and the free rear tip anterior to pelvic-fin origins; second dorsal fin high, about 2/3 of<br />

length of first, with a short inner margin less than fin height and its origin somewhat anterior to anal-fin<br />

origin; anal fin slightly smaller than second dorsal fin, without long preanal ridges; upper precaudal pit<br />

transverse and crescentic; no keels on caudal peduncle; pectoral and pelvic fins strongly falcate, with<br />

deeply concave posterior margins. Intestine with a spiral valve. Colour: grey or grey-brown above, lighter<br />

below, no prominent markings.<br />

Size: Maximum total length about 2.4 m; commonly to 2 m.<br />

Habitat, biology, and fisheries: A rare to common tropical coastal shark, inshore and offshore at depths<br />

down to 130 m. Viviparous, number of young 6 to a per litter; size at birth about 45 cm. Feeds on a variety<br />

of fish species, also on cephalopods. Potentially dangerous because of its size and large teeth, but never<br />

recorded as attacking people. Regularly taken in artisanal fisheries, in the area especially off Thailand.<br />

Caught with bottom gill nets, floating longlines and probably on hook-and-line. Utilized fresh <strong>for</strong> human<br />

consumption; liver processed <strong>for</strong> vitamins; fins used in the oriental sharkfin trade, and offal <strong>for</strong> fishmeal.<br />

Distribution: Indo-West<br />

Pacific off South Africa,<br />

Madagascar, Mozambique,<br />

Tanzania, Aden, Red Sea, the<br />

Persian Gulf, Pakistan, India,<br />

Thailand, Viet Nam, China,<br />

the Philippines, and Australia<br />

(Queensland, and western<br />

Australia).

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