Body form
Small marine fish with a spiny or thorny appearance.
Seahorses and PipefishesVulnerable
Spiny Seahorse
Hippocampus histrix
The spiny seahorse (Hippocampus histrix) is a small, spiny-bodied marine fish of the family Syngnathidae native to the Indo-Pacific and listed as Vulnerable by the IUCN.
thorny seahorse
Species Guide
What to know about spiny seahorses
A clean field guide focused on habitat, identification, behavior, and conservation context without burying the useful parts.
The spiny seahorse, also called the thorny seahorse, is a small marine fish in the family Syngnathidae. It is native to the Indo-Pacific region and is classified as Vulnerable on the IUCN Red List.
Listed as Vulnerable by the IUCN.
The strongest linked planning options currently surface around destinations such as Costa Brava and Medes Islands, Koh Lipe (Tarutao - Adang-Rawi), Tulamben and Amed and countries such as Indonesia, Croatia, Japan for divers building trips around spiny seahorses.
Identification
How to identify spiny seahorses
The visual markers divers can use underwater, plus the species most likely to cause confusion.
