rivalis, Syngnathus spicifer var. Peters [W. (C. H.)] 1868:276 [Monatsberichte der Königlichen Preussischen Akademie der Wissenschaften zu Berlin 1868; ref. 3442] Basey River, Samar; Tacloban, Leyte, Philippines. Syntypes: ZMB 732 (1), 6631 (1). •Synonym of Hippichthys heptagonus Bleeker 1849 -- (Dawson 1978:136 [ref. 7026], Dawson 1986:282 [ref. 6201], Kottelat 2013:303 [ref. 32989]). Current status: Synonym of Hippichthys heptagonus Bleeker 1849. Syngnathidae: Syngnathinae. Habitat: freshwater, brackish.