Calcinus gouti est proche de C. lineapropodus Morgan & Forest, 1991 et de C. pulcher Forest, 1958. La coloration est néanmoins un moyen facile de reconnaître ces trois espèces, comme le montre les photographies ci-dessous (© H.-T. Shih)

Calcinus gouti is affiliated to C. lineapropodus Morgan & Forest, 1991 and to C. pulcher Forest, 1958. Coloration is however an easy way to recognize these three species as it can be seen on the photographs below (© H.-T. Shih). Calcinus pulcher and C. lineapropodus are still not recorded in French Polynesia.

Calcinus lineapropodus Morgan & Forest, 1991 Photograph © H.-T. Shih specimen from Taiwan	Calcinus pulcher Forest, 1958 Photograph © H.-T. Shih specimen from Taiwan