The three gall crab species used in this study were collected from two sites in the Caribbean. Troglocarcinus corallicola Verrill, 1908, was sampled from Orbicella faveolata (Ellis & Solander, 1786) in Anse à Jacques, Guadeloupe (16°12′29.4″N, 61°25′22.1″W) on April 27, 2021.