A common shore crab that can easily be confused with others from this family
Locally around Tomahawk Beach this crab can be found under rocks and is not as common as some others. It is another crab being displaced by the invasive crabs around the area
Similar Species include Cyclograpsus granulosus, Helograpsus haswellianus, Paragrapsus quadridentatus
How to identify Cyclograpsus audouinii?
This crab can be hard to distinguish from the Purple-mottled Shore Crab (Cyclograpsus granulosus) the carapace shape is the same and whilst this crab is smoother it still has some granulation and both species lack any notches.
The key feature of this crab is the tufts of hair between the bases of the legs visible on the underside of the crab. again both crabs can have this but this particular crab it is much more dense and noticeable than in C. granulosus.
What habitats does Cyclograpsus audouinii live in?
Can be found under rocks at all inter-tidal and sub-tidal levels
What is the distribution of Cyclograpsus audouinii?
Most of the Australian coast including around Tasmania excluding the NT
How big does Cyclograpsus audouinii grow?
Can grow to around 40mm across the carapace
Disclaimer: A lot of work goes into trying to identify and ensure accurate identifications are made and that the listed Descriptions, Sizes, Habitats and Distribution information is as accurate and valid as possible. Unfortunately, information in this arena is ever changing and as such no guarantee can be offered that it is correct or currently valid as a result the information is provided as a guide, and it is always suggested that you do a little research to ensure you have the latest and most accurate information. View the reference's or bibliography I welcome any feedback and comments on the information provided.