affinis, Halosaurus Günther [A.] 1877:444 [Annals and Magazine of Natural History (Series 4) v. 20 (no. 119) (art. 56); ref. 2009] South of Japan, 34°N, 138°E, Challenger station 235, depth 565 fathoms. Syntypes: BMNH 1887.12.7.244-245 (2). Also appeared in Günther 1887:241, Pl. 59 (fig. B) [ref. 2013]. •Valid as Aldrovandia affinis (Günther 1877) -- (McDowell 1973:92 [ref. 24539], Harrisson 1973:255 [ref. 7189], Nakamura in Okamura et al. 1982:71, 323 [ref. 8256], Machida in Okamura & Kitajima 1984:111, 327 [ref. 8057], Uyeno in Masuda et al. 1984:32 [ref. 6441], Sulak in Whitehead et al. 1986:594 [ref. 13676], Sulak 1986:196 [ref. 5720], Paxton et al. 1989:147 [ref. 12442], Paulin et al. 1989:65 [ref. 24556], Shcherbachev et al. 1989:165 [ref. 36134], Sulak 1990:126 [ref. 19326], Shinohara et al. 1996:154 [ref. 26605], Adam et al. 1998:8 [ref. 23610], McEachran & Fechhelm 1998:212 [ref. 23897], Fricke 1999:36 [ref. 24106], Smith 1999:1626 [ref. 24661], Nakabo 2000:190 [ref. 25086], Pakhorukov 2001:376 [ref. 25409], Hutchins 2001:18 [ref. 25847], Shinohara et al. 2001:292 [ref. 25995], Nakabo 2002:190 [ref. 26001], Choi et al. 2003:138, 489 [ref. 26218], Smith 2003:687 [ref. 26989], Moore et al. 2003:171 [ref. 27076], Shinohara et al. 2005:399 [ref. 28370], Mundy 2005:109 [ref. 28379], Paxton et al. 2006:229 [ref. 28995], Costa & Mincarone 2010:290 [ref. 37483], Zhang et al. 2010:379 [ref. 31511], Costa et al. 2015:1061 [ref. 37495], Lins Oliveira et al. 2015:35 [ref. 37485], Stewart & Struthers 2015:207 [ref. 34231], Bañón et al. 2016:303 [ref. 34397], Smith 2016:1597 [ref. 34556], Bañón et al. 2016:479 [ref. 34875], Carneiro et al. 2019:56 [ref. 37250], Fricke et al. 2019:49 [ref. 36673], Kawai et al. 2020:2 [ref. 37784], Bañón & Maño 2021:49 [ref. 38883], Fermon et al. 2022:111 [ref. 39448], Page et al. 2023:50 [ref. 40505]). Current status: Valid as Aldrovandia affinis (Günther 1877). Halosauridae. Distribution: Circumglobal in tropical and temperate seas, but not in eastern Pacific. Habitat: marine.