Image
The difference between male and female crabs is clear when they are turned upside down, as pictured. A female crab (top photograph) has a broad round tail, which fills most of her under surface, whereas a male (bottom photograph) has a narrow triangular tail. The male triangle crab (Eurynolambrus australis) has larger nippers than the female.
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Private collection
by Colin L. McLay
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Comments
17 March 2014