Winghead shark (Eusphyra blochii)

Physical characteristics

The winghead shark is notable for having the widest cephalofoil relative to body length among hammerheads. Typical features include a slender body, large lateral eyes set on the extended head, and a coloration that ranges from grayish brown on the back to a lighter underside. The cephalofoil is thought to provide enhanced sensory capabilities and improved maneuverability.

Habitat and distribution

Found primarily in tropical and warm temperate coastal waters of the Indo-West Pacific, this shark frequents continental shelves, bays, and estuaries. It is commonly encountered in shallow, nearshore environments where it hunts for small fishes and invertebrates. For general species information see Eusphyra blochii and for context within related species consult hammerhead sharks.

Biology and behavior

The winghead shark feeds on small bony fishes, cephalopods and crustaceans, using its head to probe and detect prey with electroreceptive and olfactory enhancements. Reproduction is viviparous (live-bearing), with females producing multiple young per litter. Social and migratory behaviors are not as well documented as for some larger shark species.

Human interactions and conservation

This species is taken in coastal fisheries, both as targeted catch and as bycatch, and its fins and meat are used locally. Population declines in many coastal shark species are linked to fishing pressure and habitat degradation; the winghead shark is affected by these threats. Further information on fisheries and management can be found at resources about regional fisheries and conservation practices.

Notable facts

• The winghead shark has one of the most extreme cephalofoil shapes among hammerheads, which likely improves sensory perception.
• It is the only species in the genus Eusphyra, distinguishing it taxonomically from other hammerheads.
• Despite its unusual appearance, it is a small, relatively harmless shark often encountered in shallow coastal waters.