matterni, Corythroichthys Fowler [H. W.] 1918:11, Fig. 5 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 70; ref. 1396] Philippines. Holotype: ANSP 47484. Type catalog: Böhlke 1984:159 [ref. 13621]. Original genus should have been Corythoichthys. •Synonym of Hippichthys heptagonus Bleeker 1849 -- (Dawson 1978:136 [ref. 7026], Dawson 1985:98 [ref. 6541], Dawson 1986:282 [ref. 6201], Kuiter 2009:277 [ref. 30404], Kottelat 2013:303 [ref. 32989]). Current status: Synonym of Hippichthys heptagonus Bleeker 1849. Syngnathidae: Syngnathinae. Habitat: freshwater, brackish.