Leptonotus's a genus of pipefishes of the family Syngnathidae. Species Genus Leptonotus Deep-bodied pipefish, Leptonotus blainvilleanus (Eydoux & Gervais, 1837) Pipefish, Leptonotus elevatus (Hutton, 1872) Longsnout pipefish, Leptonotus norae (Waite, 1910)… (More on Leptonotus)