News
SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliamentSpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliament
EveryFish
Zygaena blochii = Eusphyra blochii (Cuvier, 1816)

Winghead shark

A small hammerhead with an exceptionally wide cephalofoil.

Photo: Sir Francis Day, Public domain, via Wikimedia Commons

The winghead shark is a distinct species of hammerhead found in the Indo-Pacific. It features a unique head structure that aids its senses. Fishers target it for meat and fins, leading to population declines.

Share on WhatsApp

  • Cephalofoil width is up to 50% of total length
  • Gestation lasts 8 to 11 months depending on region
  • Listed as endangered by IUCN since 2016
  • Maximum recorded length is 1.9 metres

What it is

This shark belongs to the hammerhead family but stands alone in its genus. It has a slender body coloured brownish gray above and white below. Its most striking feature is the cephalofoil, a wide head structure that can reach half its total length. The first dorsal fin is tall and sickle-shaped. Adults grow up to 1.9 metres long. The skin is covered in tiny denticles with three ridges each.

Where it lives

It lives in tropical shallow waters across the central and western Indo-Pacific. Its range stretches from the Persian Gulf to New Guinea and northern Queensland. It is also found near Taiwan and the Montebello Islands off Western Australia. These sharks stay close to shore and often enter estuaries where fresh and salt water mix.

How it lives

The wide head placement gives this shark excellent binocular vision and depth perception. Long nostrils along the head edge help it detect scent trails in the water. It hunts near the sea floor for small fish, crustaceans, and squid. The large head surface may also improve electroreception. Several types of tapeworms and nematodes parasitise this species.

Breeding and life cycle

Females give birth to live young after an eight to eleven month gestation. Embryos receive nutrients through a placental connection. Litter sizes range from six to twenty five pups. Mating occurs during monsoon months in some regions. Newborns measure roughly 32 to 47 cm and emerge tail first with folded heads. Sexual maturity arrives at about one metre in length.

Winghead shark
A drawing made by EveryFish from what this page says. It is a diagram, not a picture of the real fish.

Fish and people

Fishers catch this harmless shark using nets and lines throughout its range. The meat is sold fresh while fins are exported for soup. Liver oil and fishmeal are other common products. Heavy fishing in the Gulf of Thailand and near India has reduced numbers. It is rarely caught in Australian waters.

Status and threats

The International Union for Conservation of Nature lists it as endangered. Populations have declined in parts of its range due to overfishing. Anecdotal evidence supports these drops in numbers. In contrast, regional assessments in Australia classify it as least concern due to low catch rates there.

Questions people ask about Winghead shark

Why does the winghead shark have such a wide head?

The wide cephalofoil improves binocular vision and depth perception. It also allows for longer nostrils to detect scents better. The large surface area may enhance electroreception and mechanoreception abilities.

Is the winghead shark dangerous to humans?

No, this species is considered harmless to humans. It feeds on small fish and crustaceans near the sea floor. There are no records of unprovoked attacks on people.

How many pups does a female winghead shark have?

Females produce annual litters ranging from six to twenty five pups. The number of offspring increases with the size of the mother. Birth timing varies by location from February to June.

Good reading and sources

Where this page comes from

The facts on this page come from the Wikipedia article "Winghead shark", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.

It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

The weekly digest

Every Monday: the fish of the day, new pages on EveryFish, and the conferences and anniversaries of the week ahead.