Shore life · La Saladita, Guerrero

Blue Sea Star

Phataria unifascialis

Spanish: Estrella azul del Pacífico

Blue Sea Star (Phataria unifascialis)
Photographed by sirenadelmanglar on iNaturalist

Phataria unifascialis is a species of starfish in the family Ophidiasteridae. It is sometimes known as the blue seastar or tan starfish, but both these names are also used for other species (e.g., blue seastar for Linckia laevigata). It is native to the eastern Pacific Ocean where it ranges from the Gulf of California and Magdalena Bay (Mexico) to northwest Peru, including various eastern Pacific island groups such as the Galápagos. It remains fully active at... Most often recorded in Dec, Apr, Aug, Mar.

TaxonomyAsteroidea › Valvatida › Ophidiasteridae
Local records6 research-grade observations within about 50 km of La Saladita (the survey box also takes in Zihuatanejo, Ixtapa and Troncones)
Global records1,241 on iNaturalist
Recorded here2019 – 2024
Months recorded near La Saladita
JanFebMarAprMayJunJulAugSepOctNovDec
Recent local sightings

Cite as: “Blue Sea Star (Phataria unifascialis) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/phataria-unifascialis/, updated 2026-09-26. Observation counts and months come from iNaturalist research-grade records within about 50 km of 17.8375°N, 101.7606°W (the survey box also takes in Zihuatanejo, Ixtapa and Troncones); summary text from Wikipedia where present.