Seahorse species (genus Hippocampus, pisces) described by C. Linne

The analysis of the original Linnaeus' description of Syngnathus hippocampus and post-Linnaeus publications demonstrates that this description is based on the long-snout seahorse species. Thus, the name Hippocampus hippocampus is validated for the long-snout European seahorse and the name H. brevirostris is available for the short-snout European seahorse. The neotypes of both species are designated.