Gastrophysus Müller [J.] 1843:330 Masc. Tetrodon oblongus Bloch 1786. Type by being a replacement name. Replacement for Physogaster Müller 1841, apparently preoccupied in insects. Matsuura has declared his intention to ask the ICZN to suppress Gastrophysus (Matsuura, 2015), but no decision has been made. Kottelat 2013:476 [ref. 32989] says "Gastrophysus has been used as a valid name after 1899 and therefore precedence over Takifugu cannot be reversed under Code art. 23.9; not junior homonym of Gastrophysa Dejean, 1835: 405 (nomen nudum) and Gastrophysa Gebler, 1842: 39 in Coleoptera". For stabilization, we prefer to use Takifugu for the time being. •Synonym of Lagocephalus Swainson 1839 -- (Shipp 1974:17 [ref. 7147]). •Valid as Gastrophysus Müller 1843 -- (Li 1986:948 [ref. 6329], Kottelat 2013:476 [ref. 32989]). •Synonym of Takifugu Abe 1949 -- (Jelks 2018:288 [ref. 36375]). Current status: Synonym of Takifugu Abe 1949. Tetraodontidae.