Hermit crab - Cancellus macrothrix

Diogenid hermit crab, specimen with both male and female gonopores.
For more details see:
Landschoff J; Du Plessis A; Griffiths CL (2018): Supporting data for "A micro X-ray computed tomography dataset of South African hermit crabs (Crustacea: Decapoda: Anomura: Paguroidea)" GigaScience Database. http://dx.doi.org/10.5524/100364