Gastrophryne olivacea
Western Narrow-mouthed Toad

Rare. Small and squat. Light olive gray, sometimes with a few small black specks. Belly plain. Head small and very pointed. Fold of skin behind eyes. Call a short peep followed by an angry bee buzz. Species account on iNaturalist

Arkansas Game & Fish Commission
Species of Greatest Conservation Need

Arkansas Herpetological Atlas 2019

This species is represented by 27 records from 8 sources: 18 museum (), 0 literature (), 0 research (), and 6 observation (), with 3 additional Trauth et al. (2004) locality points remaining unsourced (). It has been museum vouchered for 3 of 75 counties (), with 7 additional counties having other forms of reported occurrence (). Years of collection range from 1904 to present.

This species occurs along the Arkansas Valley near the Arkansas River, from the vicinity of Fort Smith, Sebastian County; Dardanelle, Pope County; and east of Maumelle, Pulaski County. Similarities in appearance and call with syntopic G. carolinensis, compounded by the difficulty of getting one in hand for closer examination, are likely responsible for undersampling. The historical museum records from southern Arkansas (MPM 8539 and 8556, both from 1974) and northwest Arkansas (OMNH 35702 from 1969 and UCM 58151-58154 from 1970) are in need of specimen identification confirmation. Trauth et al. (2004) plotted localities in southwestern Montgomery County and central Crawford County, which have been unmatchable to known records of either Gastrophryne species.