The bizarre-looking frogs, which measure just 7cm in length, were bred at the Durrell Wildlife Conservation Trust on Jersey last year.
The frogs are renowned for their camouflage – they have green and black bodies covered with bumps and spines.
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Hide AdThey have gone on show at Deep Sea World in North Queensferry, and once mature it is hoped the frogs will breed at the aquarium.
Deep Sea World's Chris Smith said: "Their ability to camouflage so effectively has proved quite a challenge when it comes to putting them on display to the public."