Bathyraja (subgenus of Breviraja) Ishiyama [R.] 1958:325 [133] Fem. Raja isotrachys Günther 1877. Type by original designation. •Valid as Bathyraja Ishiyama 1958 -- (Ishiyama & Hubbs 1968 [ref. 2309], Stehmann 1973:68 [ref. 7168], Ishiyama & Ishihara 1977 [ref. 5401], Nakaya in Masuda et al. 1984:13 [ref. 6441], Ishihara & Ishiyama 1985 [ref. 5799], Hulley 1986:115 [ref. 5672], Stehmann 1986 [ref. 6151], Stehmann & Bürkel 1990:88 [ref. 21679], Miller 1993:483 [ref. 21297], Stehmann 1995:10 [ref. 22055], McEachran & Dunn 1998:278 [ref. 23312], Lamilla & Pequeño 1999:281 [ref. 24267], Compagno 1999:488 [ref. 25589], Mecklenburg et al. 2002:94 [ref. 25968], Last & Yearsley 2002:1640 [ref. 26568], Stehmann 2005:S23 [ref. 28647], Stehmann 2005:S39 [ref. 28648], Campagno & Ebert 2007:130 [ref. 30471], Spies et al. 2011:58 [ref. 31143], Mecklenburg et al. 2011:115 [ref. 31212], Shinohara et al. 2011:38 [ref. 31715], Iglésias & Lévy-Hartmann 2012:38 [ref. 31781], Mabragaña et al. 2011:8 [ref. 31800], Orr et al. 2011:1 [ref. 31854], Ishihara et al. 2012:13 [ref. 31844], Parin et al. 2014:29 [ref. 33547], Stewart & Last 2015:184 [ref. 34225], Dyldin 2015:61 [ref. 34524], Pietsch & Orr 2015:17 [ref. 34694], Mecklenburg et al. 2016:23 [ref. 34440], Last et al. 2016:107 [ref. 34513], Del Moral-Flores et al. 2016:109 [ref. 34398], Last et al. 2016:367 [ref. 35005], Dyldin & Orlov 2018:168 [ref. 35920], Ehemann et al. 2018:24 [ref. 36194], Misawa et al. 2020:515 [ref. 37853], Ebert et al. 2021:77 [ref. 38234], Knuckey & Ebert 2022:6 [ref. 39306], Ebert et al. 2022:23 [ref. 39636]). Current status: Valid as Bathyraja Ishiyama 1958. Arhynchobatidae.