TY - JOUR AU - Williams, Jason D. AU - Boyko, Christopher B. AU - Marin, Ivan N. PY - 2020/11/26 Y2 - 2024/03/28 TI - A new species and depth record of bopyrid (Crustacea, Isopoda) from a squat lobster in the Kuril-Kamchatka Trench JF - European Journal of Taxonomy JA - EJT VL - 724 IS - 1 SE - Research article DO - 10.5852/ejt.2020.724.1165 UR - https://europeanjournaloftaxonomy.eu/index.php/ejt/article/view/1165 SP - 122-133 AB - The branchial parasitic isopod Pleurocryptella altalis sp. nov. (Bopyridae: Pseudioninae) is described from the squat lobster host Munidopsis petalorhyncha Baba, 2005. The new species is morphologically similar to Pleurocryptella formosa Bonnier, 1900 and P. wolffi Bourdon, 1972b but can be distinguished based on male characters (differences in head, pleon and uropods) and female characters (differences in barbula, pleopods and pleotelson). The parasite specimens (a female and male pair) were collected with the squat lobster host at a depth of 5060–5130 m from the Kuril-Kamchatka Trench, representing the deepest record for any of the 850+ described bopyrid isopod species and for any record of an infested host. Dichotomous identification keys to females and males of Pleurocryptella species and subspecies are provided. ER -