RANGE EXTENSION OF TWO BRACHYURAN CRABS COLLECTED FROM THE AMAZON CONTINENTAL SHELF

The Amazon Continental Shelf (ACS) is composed of numerous benthic habitats, which shelter a high diversity of invertebrates, especially crustaceans. However, due to the complexity of ecosystems, knowledge of crustacean fauna is still incomplete. We herein report the northernmost Brazilian record of two brachyuran crab species, Teleophrys pococki Rathbun, 1924 (Mithracidae) and Euchirograpsus americanus A. Milne-Edwards, 1880 (Plagusiidae), associated with the Great Amazon Reef System (GARS) (State of Amapá), additionally, providing a description of their first gonopods (G1). Both male specimens E. americanus and T. pococki, were accidentally collected during commercial fishing operation of the red snapper Lutjanus purpureus (Poey, 1866) in the ACS (northern Brazil), at depths up to 70 m, in August 2023 and September 2025. The presence of both species in the GARS increases crustacean biodiversity in this ecosystem and highlights the need for further studies in the region to assess its true diversity and to develop management plans focused on species conservation.