Ocean Atlas · Animals

Rays

Halavi guitarfish

Glaucostegus halavi

No sighting is a promise, and the animal decides what you see, so stay open to whatever the day brings.

Critically EndangeredIn 2 Atlas countries

Critically Endangered (IUCN, 2019) means it faces an extremely high risk of extinction in the wild, mainly because of fishing.

Length

Up to about 120 cm (3.9 ft) in FishBase; another guide gives up to 171 cm (5.6 ft). Newborns are about 29 cm (11 in). The sources differ, so treat the maximum as uncertain.

Weight

No weight is given in the sources I read.

Next to a person

A full-grown one can be about as long as an adult is tall, with a flat body only a few centimetres thick.

What it eats

Small molluscs, bony fish and crustaceans, mostly found on or near the seabed (FishBase). Another guide describes the diet as mainly bottom-living invertebrates.

Around people

Calm, give space

How it lives

A bottom-living ray of very shallow sandy and seagrass areas, recorded from the water's edge to about 100 m. It is described as skittish around divers and as entering very shallow water to feed. Litters are up to about 10 pups, and in the Red Sea pupping is mostly May to October. Its population grows slowly, with a minimum doubling time of about 4.5 to 14 years, which is why it recovers badly from fishing.

Where it goes

Little is known about how far adults travel. In Al Wajh Lagoon in Saudi Arabia, acoustic tags suggest young fish stay in the lagoon, which is why it is treated as a likely nursery. Sources describe adults entering very shallow water to feed.

We only draw a journey on the map when scientists have tracked it or clearly documented it. For this animal we have not found one yet.

Populations

Critically Endangered on the IUCN Red List (2019 assessment). Its range runs from the Red Sea to the Gulf of Oman and possibly the Arabian Sea, and records elsewhere are unconfirmed. In the United Arab Emirates, landings have fallen sharply, with an 80% decline over 30 years reported. In Saudi Arabia, Al Wajh Lagoon is listed as an Important Shark and Ray Area, with 339 sightings of individuals in 2022, including 25 newborns. A survey of the NEOM region found it in seagrass beds north of Duba, with particularly high numbers at Al-Muwayleh, but only five sightings in total. Total population size is not known.

Meet it respectfully

Watch from a distance and let it settle or move off on its own. Never chase, touch, feed or bait it, and do not corner it in shallow water, where it feeds and where young fish rest. In very shallow seagrass, avoid stepping on the bottom or stirring up sand. I did not read local viewing rules for this species, so follow your guide and local regulations. Sightings are never guaranteed, since it is rare and well camouflaged.

Fun fact

Tap the bulb to light it up.

Where you may meet it

Halavi guitarfish in the Ocean Atlas

Places we have researched where this animal is recorded. It is never guaranteed, and some places are for watching from the boat only.

W. SaharaKazakhstanUzbekistanDem. Rep. CongoSomaliaKenyaSudanChadRussiaFranceSenegalMaliMauritaniaBeninNigerNigeriaCameroonTogoGhanaCôte d'IvoireGuineaGuinea-BissauLiberiaSierra LeoneBurkina FasoCentral African Rep.CongoGabonEq. GuineaIsraelLebanonPalestineGambiaTunisiaAlgeriaJordanUnited Arab EmiratesQatarKuwaitIraqOmanMongoliaIndiaBangladeshBhutanNepalPakistanAfghanistanTajikistanKyrgyzstanTurkmenistanIranSyriaArmeniaUkraineAustriaHungaryMoldovaRomaniaGermanyBulgariaGreeceTurkeyAlbaniaCroatiaSwitzerlandPortugalSpainSri LankaChinaItalyAzerbaijanGeorgiaSloveniaEritreaYemenSaudi ArabiaN. CyprusCyprusMoroccoEgyptLibyaEthiopiaDjiboutiSomalilandUgandaBosnia and Herz.MacedoniaSerbiaMontenegroKosovoS. SudanUmluj and the Red Sea islands, Saudi ArabiaYanbu, Saudi ArabiaJeddah and Obhur, Saudi ArabiaAl Lith, Saudi ArabiaGulf of Aqaba coast, Saudi ArabiaDahab, EgyptMarsa Alam, Egypt

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