Coenobita rugosus

Coenobita rugosus (wrinkled hermit crab) is a species of land hermit crab native to tropical Australia and eastern Africa and the western Pacific coast. It generally has gray, black, or white skin. However, dark red, pink, blue, or light purple are also occasionally found.

The main characteristic of this species of hermit crab is the presence of setae (pores) evenly distributed over almost its entire body surface, as well as a scar or stitch-like pattern (///) called a stridulatory ridge on the outer side of its left pincer. source

source	iNaturalist is a citizen science platform and online social network that allows users to record and share observations about biodiversity, as well as assist in species identification. The platform allows users to upload photos or videos of plants, animals, and other organisms, which can then be identified by a community of other users. In addition, iNaturalist also has an automatic identification feature that uses computer vision to help identify species.