Syngnathidae

* Hippocampus hippocampus (Linnaeus, 1758) —Short-snouted seahorse

Numerous specimens in the MMF collection belong to this species. Contrary to Wirtz (1998), the occurrence of another seahorse species at Madeira could not be verified. Recorded from Madeira by Dawson in Whitehead et al. (1986: 631) and Dawson in Quéro et al. (1990: 660-661) under the name Hippocampus ramulosus (non Leach, 1814).

* Nerophis ophidion (Linnaeus, 1758)—Straight-nosed pipefish

Recorded from Madeira by Wirtz (1998).

* Syngnathus acus Linnaeus, 1758 —Greater pipefish

Not recorded from Madeira by Dawson in Whitehead et al., 1986: 635-636) even though already recorded from Madeira by Maul (1949: 146). Also recorded from Madeira by Wirtz (1994: 48) but the photo of S. acus in this book is from the Azores.