Red Frog Crab (Ranina ranina) | Japan

This is a spanner crab (Ranina ranina), also known as a red frog crab. It is an edible crab found in tropical and sub-tropical waters. These crabs burrow into the sand rear-first, where they stay camouflaged with only their eyes protruding. They come out to scavenge for food. Unlike other crabs, this species walks in a forward direction. Though this crustacean is harvested for food, there is little known about this species’ ecology. It is the only species extant in its genus.

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Filename: red-spanner-frog-crab-ranina-ranina-japan-201705-0997.tif
Copyright: Copyright Tony Wu. All rights reserved. No duplication, reproduction or usage without prior written permission.
Image Size: 7360x4912 / 103.5MB; https://www.photoshelter.com/support/license#rm; https://www.tony-wu.com/contact-tony-wu; Crustacean Spanner Crab Animalia Arthropoda Crustacea Malacostraca Decapoda Raninidae Ranina ranina Red Frog Crab アサヒガニ Pacific Japan Shikoku Kochi Prefecture
Contained in galleries: Marine Life | Japan, Crustaceans

This is a spanner crab (Ranina ranina), also known as a red frog crab. It is an edible crab found in tropical and sub-tropical waters. These crabs burrow into the sand rear-first, where they stay camouflaged with only their eyes protruding. They come out to scavenge for food. Unlike other crabs, this species walks in a forward direction. Though this crustacean is harvested for food, there is little known about this species’ ecology. It is the only species extant in its genus.