filamentosus, Hippocampus Duméril [A. H. A.] 1870:507 [Histoire naturelle des poissons ou ichthyologie générale v. 2; ref. 1147] "Latinization of Hippocampe filamenteaux Cloquet, Dict. Sci. Nat., Levrault. Atlas, Poiss., 1821, pl. 7". Not available, name in the synonymy of Hippocampus ramulosus Leach 1814. •In the synonymy of Hippocampus hippocampus (Linnaeus 1758) -- (Kuiter 2009:18 [ref. 30404]). •In the synonymy of Hippocampus guttulatus Cuvier 1829. Nomen Nudum. Current status: Synonym of Hippocampus guttulatus Cuvier 1829. Syngnathidae: Syngnathinae. Habitat: brackish, marine.