Syngnathidae

Upside-down pipefish

Heraldia nocturna

Swimming upside down in caves

• Temperate
• Regional distribution
• Marine fish
• Indian Ocean
• Oceania
• Anguilliform
• Small
• Temperate fish

Upside-down pipefish is a marine fish from Eastern Indian Ocean. It inhabits reef habitat. The largest recorded length is 9.2 cm.