Eleven New Species and a New Genus of Diastylidae (Crustacea: Cumacea) from Australia and One New Species from Canada Author Gerken, Sarah text Records of the Australian Museum 2014 2014-02-26 66 1 1 62 http://dx.doi.org/10.3853/j.2201-4349.66.2014.1601 journal article 10.3853/j.2201-4349.66.2014.1601 2201-4349 4684387 Paradiastylis Calman, 1904 Type species . Paradiastylis brachyura Calman, 1904 . Diagnosis . Female . Without exopod on maxilliped 3. Adult male . Bases of pereopods 1–4 greatly expanded, bases of exopods on pereopods 1–4 expanded. Remarks . Paradiastylis and Dimorphostylis can only be reliably separated by the maxilliped 3 exopod, absent in Paradiastylis females and present in Dimorphostylis females. If females are not present, it may not be possible to differentiate between the two genera. Australian species . Paradiastylis berentsae n. sp. ; P. botanybayensis n. sp. ; P. longipes Calman, 1905 ; P. mollis Hale, 1945 ; P. occidensaustralis n. sp. ; P. whitleyi Hale, 1951 .