Shore life · La Saladita, Guerrero

Pin Cushion Sea Urchin

Astropyga pulvinata

Spanish: erizo cojín

Astropyga pulvinata is a species of sea urchins of the family Diadematidae. Their armour is covered with spines. Astropyga pulvinata was first scientifically described in 1816 by Jean-Baptiste de Lamarck. Most often recorded in Dec, Feb, Nov.

TaxonomyEchinoidea › Diadematoida › Diadematidae

Local records3 research-grade observations within about 50 km of La Saladita (the survey box also takes in Zihuatanejo, Ixtapa and Troncones)

Global records297 on iNaturalist

Recorded here2013 – 2022

Months recorded near La Saladita

JanFebMarAprMayJunJulAugSepOctNovDec

Recent local sightings

2022-12-21 — observation by sombrero_de_polen
2021-02-10 — observation by chepipatricio
2013-11-10 — observation by patricia_ramirez_bastida

Interactive card with more photos, sounds and similar species Shore life guide iNaturalist Wikipedia

Cite as: “Pin Cushion Sea Urchin (Astropyga pulvinata) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/astropyga-pulvinata/, 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.