Sphyrna tudes (Valenciennes, 1822)
Smalleye hammerhead
photo by FAO

Family:  Sphyrnidae (Hammerhead, bonnethead, or scoophead sharks)
Max. size:  134 cm TL (male/unsexed); 148 cm TL (female)
Environment:  benthopelagic
Distribution:  Southwest Atlantic: Venezuela to Argentina (Ref. 58839). Also Mediterranean Sea and Eastern Pacific (Ref. 7251).
Biology:  A little-known inshore shark of the continental shelf, found down to at least 12 m depth. Feeds on small bony fishes, including sea catfish and grunts, but also newborn scalloped hammerheads, swimming crabs, squids, and shrimp. Viviparous with a yolk-sac placenta; number of young probably 6 to 9 per litter (Ref. 244).
IUCN Red List Status: Vulnerable (VU); Date assessed: 31 January 2006 (A2ad+3d+4ad) Ref. (120744)
Threat to humans:  harmless
Country info:   

Entered by: Froese, Rainer - 04.02.00

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