Southwest – Southwest Forests Frogs SW Forests Image copyright WA Museum The cool, wet forests of the 'southwest corner' have the highest diversity of frogs with over 20 species. Among them are ancient species with peculiar breeding biologies (e.g., Forest Toadlet, Roseate Frog). Six species are endemic to this cold wet region of Western Australia. This area contains 3 of WA's most threatened frogs (the White and Orange-bellied Frogs and the Sunset Frog). Frogs of the Southwest Forests region Sand Frog Heleioporus psammophilus Slender Tree Frog Litoria adelaidensis Spotted-thighed Frog Litoria cyclorhyncha Sunset Frog Spicospina flammocaerulea Ticking Frog Geocrinia leai Walpole Frog Geocrinia lutea Western Banjo Frog Limnodynastes dorsalis White-bellied Frog Geocrinia alba Whooping Frog Heleioporus inornatus ‹ Southwest – Darling Ranges Frogs Southwest – Wheat Belt Frogs ›