helfrichii, Syngnathus Bleeker [P.] 1855:428 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 9 (no. 3); ref. 16849] Bandjarmasin, Borneo, Indonesia. Syntypes: BMNH 1867.11.28.348 (1), RMNH 7232 (129 mm SL specimen of 2). •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.