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

Family:  Sphyrnidae (Hammerhead, bonnethead, or scoophead sharks)
Max. size:  134 cm TL (male/unsexed); 148 cm TL (female)
Environment:  benthopelagic; marine
Distribution:  Southwest Atlantic: Venezuela to Argentina (Ref. 58839). Also Mediterranean Sea and Eastern Pacific (Ref. 7251).
Diagnosis:   
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: Critically Endangered (CR); Date assessed: 01 July 2019 (A2bd) Ref. (130435)
Threat to humans:  harmless


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