Fish · La Saladita, Guerrero

Pacific Nurse Shark

Ginglymostoma unami

Spanish: tiburón nodriza del pacífico

Pacific Nurse Shark (Ginglymostoma unami)
Photographed by jamackay on iNaturalist · CC-BY-NC

Ginglymostoma unami, also known as the Pacific nurse shark is a nurse sharks of the family Ginglymostomatidae. It is found in southeastern coast of Baja California, Mexico to Costa Rica including Gulf of California. This species differs from Ginglymostoma cirratum between posterior end of the second dorsal fin and the beginning of the caudal lobe, both being shorter; the new species also differs by the position of the insertion of the first dorsal fin with regard... Most often recorded in Feb.

TaxonomyChondrichthyes › Orectolobiformes › Ginglymostomatidae
IUCN statusEndangered (EN)
Local records2 research-grade observations within about 50 km of La Saladita (the survey box also takes in Zihuatanejo, Ixtapa and Troncones)
Global records100 on iNaturalist
Recorded here2016 – 2025
Months recorded near La Saladita
JanFebMarAprMayJunJulAugSepOctNovDec
Recent local sightings

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

Cite as: “Pacific Nurse Shark (Ginglymostoma unami) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/ginglymostoma-unami/, 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.