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Amphibians

Western Narrow-mouthed Toad

Gastrophryne olivacea

Authorship: (Hallowell)

Records

It was observed 26 July 2008 at Peccary Tank by J.D. Johnson (UTEP). Large choruses were heard 21 August 2009 at Echo Canyon TwinTanks, Peccary Tank, and Rattlesnake Tank after heavy afternoon rainstorms, and again in July 2010, 2011, May 2012, and June through August 2013 through 2017 (J.D. Johnson, UTEP).

Sources

[Dilks, Johnson, and Mata-Silva (UTEP), Couvillon, 2011a, b, Mata-Silva (UTEP)]

Taxonomic Classification

KingdomAnimalia

PhylumChordata (Chordates)

SubphylumVERTEBRATA (Vertebrates)

ClassAmphibia (Amphibians)

OrderAnura (Frogs and Toads)

FamilyMICROHYLIDAE (Narrow-mouthed Toad Family)

GenusGastrophryne

Speciesolivacea

Recent Observations

Sourced from iNaturalist

soph1916Jun 10, 2023Fort Hancock, TX, US

michaelmatthews98Oct 8, 2022Fort Hancock, TX, US

andraoutthereOct 24, 2026Texas, US

amialiveOct 24, 2026Denton, TX, US

visceral906Oct 22, 2026I-20 Wildlife Preserve, Midland, TX, US

calynroOct 21, 2026Prairie Creek Cir, Princeton, TX, US

enneacanthusOct 20, 2026Ingleside, TX, USA

dowen0316Oct 18, 2026San Antonio, TX, US

deniseljohnsonOct 17, 2026W Orange Ave, Orange Grove, TX, US

c_wrightOct 17, 2026Lbj State Park Walking Trail, Stonewall, TX, US

Conservation assessments from the following sources:

NatureServe Explorer
IUCN Red List
Texas Parks & Wildlife — Species of Greatest Conservation Need (SGCN)

Conservation status by source
IUCN Red List	LCLeast Concern
NatureServe Global (opens in new tab)	G5Secure
NatureServe (Texas) (opens in new tab)	S5Secure
Texas SGCN	Not assessed