xenostoma, Aristostomias Regan [C. T.] & Trewavas [E.] 1930:139, Pl. 13 (fig. 3); Fig. 133-134 [Danish Dana Expedition 1920-22 in the North Atlantic and the Gulf of Panama, Oceanographical Reports. v. 2 (no. 6); ref. 3681] Caribbean Sea; northern Atlantic. Syntypes: (11 + 9 juveniles) BMNH 1929.7.6.243 (1), 1929.7.6.244 (1), 1929.7.6.245 (1), 1929.7.6.246 (1), 1929.7.6.247 (1); MNHN 1938-0124 (1); ZMUC P201927 (1) 14°00 N, 61°40'W, P20438-48 (11). Type catalog: Bertin 1940:311 [ref. 293], Nielsen 1974:26 [ref. 9588]. •Valid as Aristostomias xenostoma Regan & Trewavas 1930 -- (Morrow 1964:541 [ref. 6958], Goodyear 1990:339 [ref. 14930], McEachran & Fechhelm 1998:473 [ref. 23897], Harold 1999:1917 [ref. 24741] as Aristomias, Harold 2003:903 [ref. 27001], Moore et al. 2003:192 [ref. 27076], Harold 2016:1808 [ref. 34568], Schnell & Johnson 2017:2 [ref. 35193], Carneiro et al. 2019:93 [ref. 37250], Sutton et al. 2020:85 [ref. 37832], Fermon et al. 2022:179 [ref. 39448], Page et al. 2023:86 [ref. 40505]). Current status: Valid as Aristostomias xenostoma Regan & Trewavas 1930. Stomiidae: Malacosteinae. Distribution: Circumglobal. Habitat: marine.