A global revision of the Seahorses Hippocampus Rafinesque 1810 (Actinopterygii: Syngnathiformes): Taxonomy and biogeography with recommendations for further research Author Sara A. Lourie Author Riley A. Pollom Author Sarah J. Foster text Zootaxa 2016 4146 1 1 66 journal article 10.11646/zootaxa.4146.1.1 f27bf01d-bf27-4e86-b2ba-81b84931d348 1175-5326 268078 35E0DECB-20CE-4295-AE8E-CB3CAB226C70 H. coronatus Temminck & Schlegel 1850 English common names. Crowned Seahorse . Lectotype (designated by Boeseman (1947:195–196)) : RMNH D1543 (dry). Paralectotype : RMNH D 1541-42 (2, dry), D1544 (1, dry). Type locality. Nagasaki , Japan . Synonyms. None. Distribution. Japan , South Korea (southeast). Notes. Mukai et al. (2000) assessed the mtDNA 12S rRNA divergence of specimens from Sagami Bay , Japan that they identified as H. coronatus . They concluded the samples represented two different taxonomic units, 4.4–4.6% divergent from one another. It is possible that the samples were misidentified and may in fact be H. coronatus and H. sindonis (this is likely based on the photographs in the paper). The paper did not mention H. sindonis . Morphological examination of the seahorses from Sagami Bay is needed.