Macromedaeus crassimanus (A. Milne-Edwards, 1867) ‒ Thick-clawed Reef Crab

Species Account

A wide-ranging Indo-West Pacific species found on lower intertidal and shallow subtidal rocky shores. Carapace finely granular, distinctly convex, regions separated by broad and shallow furrows; front narrow, divided into two lobes by V-shaped notch, outer angle of each lobe produced, creating 4-lobed appearance; anterolateral margins with 5 teeth (excluding the outer orbital angle). Chelipeds unequal, dorsal surface granular, fingers brownish-black, fingertips spoon-shaped. — John W. Short, 2026

Image

Specimen collected from Caloundra, southeast Queensland, Australia, John W. Short, October 1996. Photographed by John W. Short.