Key to known species of the genus Ambidexter Manning & Chace, 1971 (Modified from Abele 1972). 1 Stylocerite with lateral spinule........................................................................... 2 - Stylocerite without lateral spinule............................................................ A. symmetricus 2 Rostrum with apex bifid................................................................................ 3 - Rostrum with apex simple................................................................... A. panamensis 3 Carpus of second pereiopods with 12–13 articles...................................................... A. swifti - Carpus of second pereiopods with 9–11 articles............................................. A. cochensis sp. nov.

Published as part of Rodríguez, Pedro & Lira, Carlos, 2022, A new species of shrimp, genus Ambidexter Manning & Chace, 1971 (Decapoda Processidae), from southeastern Caribbean Sea, Venezuela, with key to genus, pp. 287-294 in Zootaxa 5219 (3) on page 293, DOI: 10.11646/zootaxa.5219.3.6, http://zenodo.org/record/7417475