An annotated and illustrated checklist of the porcelain crabs of Panama (Decapoda: Anomura) Author Ferreira, Luciane Augusto De Azevedo 0000-0003-1683-9962 Author Anker, Arthur 0000-0002-5350-4267 arthuranker7@gmail.com text Zootaxa 2021 2021-09-27 5045 1 1 154 http://dx.doi.org/10.11646/zootaxa.5045.1.1 journal article 10.11646/zootaxa.5045.1.1 1175-5326 5532178 B12C62E3-70D0-4989-BB1A-F4A75C492D8F Polyonyx confinis Haig, 1960 Polyonyx confinis Haig 1960: 234 , fig. 12(3), pl. 17; Haig 1968: 72 ; Gore 1982: 21 ; García-Madrigal & Andréu-Sánchez 2009: 43 . Material examined . None. Previous records from Panama . Gore (1982) . Distribution . East Pacific: Nicaragua and Panama ( Isla Venao) ( Gore 1982 ). Ecology . Intertidal and shallow subtidal, presently known depth range: 0–6 m ; the type specimens were dredged from a “bottom covered with mangrove leaves” ( Haig 1960 ; Gore 1982 ). Remarks . Prior to Gore’s (1982) record of a single ovigerous female from Venao I., Panama , P. confinis was known only from the male holotype and female paratype from Corinto, Nicaragua . The rarity of this species is certainly due to yet unknown “commensal” association, possibly with a larger burrowing animal.