Hydrosaurus


Hydrosaurus, commonly known as the sailfin lizards, is a genus in the family Agamidae. These relatively large lizards are named after the sail-like structure on their tails. They are native to the Philippines, Indonesia and Papua New Guinea, where they are generally found near water, such as rivers and mangrove. Sailfin lizards are semiaquatic and able to run short distances across water using both their feet and tail for support, similar to the basilisks. They are threatened by both habitat loss and overcollection for the wild animal trade.
They are the only members of the subfamily Hydrosaurinae.

Species

There are currently five valid species according to the Reptile Database,