New records of deep­sea spider crabs of the genus Cyrtomaia Miers, 1886, from the Pacific Ocean, with description of a new species (Crustacea: Decapoda: Brachyura: Majidae) Author Forges, Bertrand Richer De Author Ng, Peter K. L. text Zootaxa 2008 1861 17 28 journal article 10.5281/zenodo.183679 601caac8-7023-4c2c-997e-42fd7524058e 1175­5326 183679 Cyrtomaia Miers, 1886 Cyrtomaia Miers, 1886 ( type species Cyrtomaia murrayi Miers, 1886 , subsequent designation by Guinot & Richer de Forges, 1982b ; gender feminine) Echinomaia Borradaile, 1916 ( type species Echinomaia hispida Borradaile, 1916 , by monotypy; gender feminine) Remarks . The genus Cyrtomaia Miers, 1886 , was established for C. murrayi Miers, 1886 , from Indonesia ( type species selected by Guinot & Richer de Forges 1982b ). Guinot & Richer de Forges (1982a , b ) partially reviewed the genus and recognized 21 species. Griffin & Tranter (1986) , however, disagreed with the validity of some of the characters proposed by Guinot & Richer de Forges (1982a , b ), arguing that there was more extensive variation than was previously recognized, especially for taxa in which there was little material, and as a result recognized only 17 species. Guinot & Richer de Forges (1986) , utilizing the extensive material collected by the MUSORSTOM 2 expedition, disagreed with some of Griffin & Tranter’s arguments, and further discussed the validity of some species. Richer de Forges & Guinot (1988, 1990) and Richer de Forges & Ng (2007a, b) subsequently described more species. In this study, we recognise 29 species, all of which are characteristic of the upper bathyal zone, occurring between 200 and 1000 m deep.