The thumbnail crab, Thia scutellata, is a species of decapods, in the family of thiidae,[2] whose carapace resembles a human thumbnail, a dense fringe of long hairs distinctly notched around the edge.

[3] Pale pink in colour with red to brown markings.

It is found in the North Sea, north-east Atlantic and Mediterranean Sea.

[5] Their predators includes the atlantic cod.

This Portunoidea article is a stub.