Lesser Antillean Whistling Frog


Scientific Name: Eleutherodactylus johnstonei


Family: Eleutherodactylidae


Other Names: Johnstone’s Whistling Frog


Size: females are larger than males. Length: females average of 3.2 cm (~1.25″); males average of 2.2 cm (~0.87″).

Body shape: typical frog shape; the fingers are small and rounded and the small head is a little broader than its length.

Coloring: body is dull brown to greyish-tan, with paler undersides. The back of the legs are marbled with black. Some frogs have two dark dorsal stripes along their back.

Distinct features: 1) the large eyes have a golden iris; 2) each shoulder typically has a black V-shaped marking (also known as a chevron); and 3) the feet are not webbed like most frogs; instead they have large adhesive disks.

Species Ecology


  • Feeding technique: unknown.
  • Prey: ants, spiders and termites

Life History

  • Sexual maturity: unknown.
  • Mating season: summer (June to August).
  • Gestation period: unknown.
  • Number of eggs: 8 to 30 per breeding season, laid down on the ground; no tadpole stage, emerge as very small frogs.
  • Life expectancy: unknown.

Additional information


  • Most of the lesser Antillean islands including Saba, Anguilla, Barbados, Montserrat and St Lucia.


  • Large diversity of disturbed and moderately damp areas, including gardens, plantations, and forest edges.

Island status

  • Common on Saba

Conservation status

  • IUCN Red List: classified as Least Concern.
  • CITES: not listed.
  • SPAW: not listed.

Local Research and Conservation Efforts

None so far as the population of the Lesser Antillean Whistling Frog is healthy. They are offered protection within the many terrestrial parks of the Dutch Caribbean islands.

Did You Know?

  • The Lesser Antillean Whistling Frog, often called the Johnstone’s Whistling Frog, is named after Robert Johnstone, the Chief Justice of Grenada who helped aid discover the first specimens.
  • The Lesser Antillean Whistling Frog is highly adaptable to changing environments; this may explain why it is the most widely distributed frog in the eastern Caribbean.
  • The Lesser Antillean Whistling Frog has recently been accidentally introduced via boats to Bermuda, Jamaica, Panama and Venezuela.


The IUCN Red List of Threatened Species
Amphibian Rescue and Conservation Effort
Encyclopedia of Life