microcoronatus, Hippocampus hippocampus Slastenenko [E. P.] 1938:175 [Annales scientifiques de l'Université de Jassy Pt. 2 Sciences Naturelles v. 25 (pt 2, no. 1); ref. 18722] Black Sea and Sea of Azov. No types at ZIN. Unneeded new name for Hippocampus microstephanus Slastenenko 1937. •Synonym of Hippocampus hippocampus (Linnaeus 1758) -- (Parin et al. 2014:207 [ref. 33547]). •Synonym of Hippocampus guttulatus Cuvier 1829 -- (Lourie et al. 1999:97 [ref. 23993], Lourie et al. 2016:26 [ref. 34632]). Current status: Synonym of Hippocampus guttulatus Cuvier 1829. Syngnathidae: Syngnathinae. Distribution: Black Sea and Sea of Azov (if valid). Habitat: brackish, marine.