Syngnathidae

Beibu Bay seahorse

Hippocampus casscsio

• Tropical
• Northern Hemisphere
• Regional distribution
• Marine fish
• Pacific Ocean
• East Asia
• Elongated
• Small
• Tropical fish

Hippocampus casscsio, the Beibu Bay seahorse, is a species of marine fish of the family Syngnathidae. It is found off the coast of Hainan, China, and from sites around Beibu Bay/the Gulf of Tonkin. It inhabits shallow coastal waters to depths of 15 metres (49 ft).