Found along Tomahawk Beach under rocks at low tide this crab is less common now days due to invasive crabs such as New Zealand Half Crab (Petrolisthes elongatus)
Similar Species include Paragrapsus laevis, Paragrapsus gaimardii, Leptograpsodes octodentatus
Like all the other shore crabs they feed on the decaying fish and seaweeds found along our beaches and scurry away to find shelter when disturbed.
How to identify Parvonotus spinosus
This small shore crab often confused with juveniles of other crabs can be identified by its eyes that are black with white spots this along with the anterolateral margin of the carapace featuring three short spines or teeth the largest set slightly more posterior than the first two
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What habitats does Parvonotus spinosus live in?
Can be found under rocks in the inter-tidal zone out to a depth of 10m
What is the distribution of Parvonotus spinosus?
South-eastern Australia including around Tasmania
How big does Parvonotus spinosus grow?
Can grow to around 20mm across the carapace
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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.