Occurrence records of Synalpheus pandionis and Periclimenaeus perlatus in the South Atlantic

The specimens were collected by scuba diving at a depth of 22 m on 9 January 2024 from the sponges Mycale (Zygomycale) angulosa (Duchassaing & Michelotti, 1864) and Aplysina fistularis (Pallas, 1766).

Each specimen is represented by a separate preserved-specimen occurrence record and is deposited in the crustacean collection of the Spanish Institute of Oceanography (CRUST-IEO). The dataset includes geographic, taxonomic, collection, sex, body-size, and sequence-accession information. These records support a study documenting South Atlantic range extensions of both shrimp species using an integrative taxonomic approach (de Carvalho-Souza et al. 2026).