1801 Hippocampus hippocampus (Linnaeus, 1758) Syngnathidae Pipefishes and seahorses Syngnathinae Syngnathiformes Teleostei Short-snouted seahorse Eastern Atlantic: British Isles to Guinea and the Mediterranean Sea AMNH 1082 1897 Hippocampus brevirostris AMNH 5042 1913 Hippocampus brevirostris IIPB 830/1991 1987 Hippocampus hippocampus 4 - 4 m