 "Coenobita compressus" and "Coenobita perlatus" also possess these striations to a lesser extent but can easily be distinguished from "C. rugosus" by size and colour; especially in the case of the "C. perlatus" which is a striking red colour as an adult.They can be in length and their eyestalks are sandy in colour and may have a brown stripe on the bottom of them.The bottom pair of the second antena are light orange in colour.