Gastrophryne carolinensis
Silhouette: Dmitry Bogdanov (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~20% in a week ~50%
Gastrophryne carolinensis, the eastern narrow-mouthed toad, is a species of microhylid frog. It is a relatively small, toad-like amphibian found in damp, shady habitats. The species is highly fossorial, and feeds primarily on ants. These North American microhylids (Family: Microhylidae) are distinguished from true toads (genus Bufo), and other anurans by their moist, smooth skin, their lack of eardrums or tympana, their distinguishable squat body shape, and the unique fold of skin superior to their eyes. It is found in the United States, from southern Maryland to the Florida Keys, west to Missouri, Arkansas and Texas. While not a true toad, it is so called because it is terrestrial.
Gastrophryne carolinensis belongs to one of the largest anuran families, the microhylids. No subspecies are currently recognized. The eastern narrowmouth toad is one of only three microhylids that currently live in the United States.
The eastern narrow-mouthed toad is relatively small, growing to a maximum length of 53 mm (2.1 in). It has an oval-shaped body and a narrow head with a pointed snout. On the back of their head, they have a fold of skin that is capable of covering... Wikipedia →
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Everglades National Park | 🇺🇸 United States | |
| 3 | Congaree National Park | 🇺🇸 United States | |
| 4 | Padre Island National Seashore | 🇺🇸 United States |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Wonders of Wildlife Museum & Aquarium | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Eastern Narrow-mouthed Toad sighting in Padre Island National Seashore on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 8th most-seen of the 8 amphibians we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 20% of wildlife watchers report an Eastern Narrow-mouthed Toad in Padre Island National Seashore on a given day, against under 5% in August and October–April, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Eastern Narrow-mouthed Toad sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
4th of 4
Of the 4 parks where we can rate Eastern Narrow-mouthed Toad sightings, Padre Island National Seashore ranks 4th at about 10%. The best odds are in Big Cypress National Preserve (United States, about 30%), Everglades National Park (United States, about 10%) and Congaree National Park (United States, about 10%).
Same order: Anura
The closest relatives of the Eastern Narrow-mouthed Toad that you can see in Padre Island National Seashore (order Anura, Frogs and Toads) are Rio Grande Leopard Frog (about 20%), Green Treefrog (about 20%) and Hurter's Spadefoot (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eastern Narrow-mouthed Toad is recorded against all the amphibians logged in Padre Island National Seashore (8 verified sightings from 2019 to 2026), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
