Calloselasma

Calloselasma is a monotypic genus created for a venomous pitviper species, C. rhodostoma, which is endemic to Southeast Asia from Thailand to northern Malaysia and on the island of Java. No subspecies are currently recognized.

Calloselasma

Calloselasma is a monotypic genus created for a venomous pitviper species, C. rhodostoma, which is endemic to Southeast Asia from Thailand to northern Malaysia and on the island of Java. No subspecies are currently recognized.