Fish · La Saladita, Guerrero

Pacific Fat Sleeper

Dormitator latifrons

Spanish: Dormilón gordo del Pacífico

Dormitator latifrons (Pacific fat sleeper) is a species of sleeper goby found on the Pacific coast of the Americas from around Palos Verdes, California, to Peru, where it can be found in stagnant or sluggish fresh or brackish waters or nearby marine waters. Males of this species can reach a length of 41 cm (16 in), while females grow to 39 cm (15 in). Most do not exceed 25 cm (9.8 in). A maximum weight of 1.2 kg (2.6 lb) has been recorded. This... Most often recorded in Jun, Jul.

TaxonomyActinopterygii › Gobiiformes › Eleotridae

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

Global records319 on iNaturalist

Recorded here2023 – 2023

Months recorded near La Saladita

JanFebMarAprMayJunJulAugSepOctNovDec

Recent local sightings

2023-07-04 — observation by zihuadean
2023-06-20 — observation by isabel_soria
2023-06-19 — observation by prickly_sculpin

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

Cite as: “Pacific Fat Sleeper (Dormitator latifrons) at La Saladita”, La Saladita Field Guide, lasaladita.com/species/dormitator-latifrons/, 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.