Contact | Blog | Project Noah Facebook | Project Noah Twitter

A global citizen science platform
to discover, share and identify wildlife

Join Project Noah!

Johnstone's Whistling Frog



A small, dull-colored frog, adult males are 17-25 mm long and adult females, 17-35 mm. Brown to gray tan dorsal ground color with usually one or two darker chevrons. Often a narrow middorsal pinstripe or a broad pair of dorsal stripes. Marbled, stippled, or blotched on a dark brown to gray tan ground posterior thigh surface and creamy undersurface. Iris gold above and brownish below. Smooth to slightly tuberculate dorsum; head a little broader than long; snout truncate from above; large eyes with eyelids that have many low, rounded tubercles. Distinct tympanum; oblique vomerine odontophores. Distinct, small, rounded finger and toe disks; lacks digital webbing. Many small plantar tubercles; elongate inner metatarsal tubercle larger than conical outer metatarsal tubercle; lacks tarsal fold. Adult males have paired vocal slits and a distensible internal subgular vocal sac strongly granular when uninflated; lacks nuptial thumb pads.


In the garden of our house, Saba, Dutch Caribbean. Near Vulcano and ocean.


They live in the cracks of our wall. ADORABLE!

Species ID Suggestions

Sign in to suggest organism ID


Spotted by

Saba, Caribisch Nederland, Netherlands

Lat: 17.63, Long: -63.23

Spotted on Nov 12, 2017
Submitted on Nov 12, 2017

Related Spottings

Antilles Coqui Johnstone's Whistling Frog Antilles coqui Lesser Antillean Whistling Frog, Coqui Antillano, Johnstone's Whistling Frog

Nearby Spottings

Spotting mushroom Gulf fritillary / Passion Butterfly, Caterpillar