Distribution: Possibly common in the Solitary Islands Marine Park. Distributed throughout the Indo-Pacific region. In Australia recorded from the Timor Sea and the Great Barrier Reef in Queensland, south to northern New South Wales.

Ecological Notes: Occupies a variety of empty shells and frequents branching corals such as Acropora and Pocillopora.

Additional Notes: A small species, the body is speckled with orange coloured pits, and the dactyls of the second and third pereiopods are orange. The eye stalks are white to pale orange, with a black eye. Carapace length from 3 to 8 mm and total length to around 25 mm.

References: Reef Creature Identification, Tropical Pacific. Paul Humann, Ned DeLoach, New World Publications Inc, Jacksonville, Florida, USA, 2012 edition. p.160.

Poupin J. and M. Juncker, 2010 – A guide to the decapod crustaceans of the South Pacific. Published by CRISP and SPC, Noumea, New Caledonia, 320 pp., 366 photographs. Pp.294-5.

Atlas of Living Australia website at https://bie.ala.org.au/search?q=calcinus+minutus. Accessed 12/11/2018