Hydrophis semperi, known in some circles as the Philippine freshwater sea snake or Garman's sea snake, is a rare species of venomous sea snake found only in a single lake on the island of Luzon in the Philippines. It is noted for being one of two known species of sea snake (and the only one in its family) that is known to be found almost-exclusively in freshwater. The other freshwater sea snake species is Laticauda crockeri.
H. semperi is usually...
More
Hydrophis semperi, known in some circles as the Philippine freshwater sea snake or Garman's sea snake, is a rare species of venomous sea snake found only in a single lake on the island of Luzon in the Philippines. It is noted for being one of two known species of sea snake (and the only one in its family) that is known to be found almost-exclusively in freshwater. The other freshwater sea snake species is Laticauda crockeri.
H. semperi is usually classified in the subfamily Hydrophiinae of the family Elapidae, although in some classification schemes, it and the rest of the "true" sea snakes are instead grouped in the family Hydrophiidae.
Like all "true" sea snakes, it is a rather heavyset snake, elongated with a small head. It possesses the characteristic flattened, paddle-like tail found in the members of its subfamily. This particular species is considered short in comparison to the rest of the family; adult specimens of H. semperi that have been caught were in the realm of 50 cm to...
Less
