Three new species of abdominal shrimp parasites (Crustacea: Isopoda: Bopyridae Hemiarthrinae) from the Indo-West Pacific Author An, Jianmei School of Life Science, Shanxi Normal University, Linfen, 041000, P. R. China Author Chen, Ruru 0000-0002-3529-4796 School of Life Science, Shanxi Normal University, Linfen, 041000, P. R. China & 714942411 @ qq. com; https: // orcid. org / 0000 - 0002 - 3529 - 4796 714942411@qq.com Author Paulay, Gustav Florida Museum of Natural History, University of Florida, Gainesville, FL, 32611 - 7800, USA text Zootaxa 2020 2020-09-02 4845 2 264 274 journal article 8545 10.11646/zootaxa.4845.2.7 2025274e-cd69-40aa-93b0-100f03c38652 1175-5326 4406601 ED92874B-EBFF-4A77-A9C8-B654F30BA28C Key to 5 species of genus Hemiarthrus (based on females) 1 Pleon with bifurcated end....................................................... H. abdominalis ( Krøyer, 1840 ) - Pleon ending in a single point........................................................................... 2 2 Pereomeres almost completely fused......................................... H. surculus Boyko & Williams, 2004 - Pereomeres separated.................................................................................. 3 3 Barbula with three pairs of projections......................................................... H. alphei n. sp. - Barbula with fewer than three pairs of projections........................................................... 4 4 Lateral plates of pleon with distal, hook-like projection.............................. H. nemaocarcini Stebbing, 1914 - Lateral plates of pleon entire, without any projections................................... H. synalphei ( Pearse, 1950 )