ORDER SYNGNATHIFORMES
Family Fistulariidae
* Fistularia petimba Lacepède, 1803 — red cornetfish
Not mentioned for Galicia by Tortonese in Whitehead et al. (1986) nor Quéro et al. (2003). One specimen of 140 cm TL (Figure 8) caught on 11 May 2006, in Laxe, at the north-west coast of Galicia (Bañón & Sande, 2008).
Family Centriscidae
* Macroramphosus scolopax (Linnaeus, 1758) — Snipe-fish
Family Syngnathidae
* Hippocampus guttulatus Cuvier, 1829 — Sea horse
* Entelurus aequoreus (Linnaeus, 1758) — Snake pipefish
* Nerophis lumbriciformis (Jenyns, 1835) — Worm pipefish
* Nerophis ophidion (Linnaeus, 1758) — Straight-nosed pipefish
Syngnathus typhl e Linnaeus, 1758 — Deep-snouted pipefish
Syngnathus phlegon Risso, 1827 — No common name
Not mentioned for Galicia neither by Dawson in Whitehead et al. (1986) nor by Quéro et al. (2003). Recorded by Lozano y Rey (1947).
* Syngnathus acus Linnaeus, 1758 — Great pipefish
Syngnathus abaster Risso, 1827 — Black-striped pipefish