The Greater Mekong region of southeast Asia yielded 145 species new to science during 2009, according to a report from conservation group WWF. The group is involved in an ongoing project to document wildlife in the region.

The new finds include about 10 species of Oreoglanis sucker-fish from Thailand. These use their underbodies and fins to form a sucker, enabling them to cling to rocks even in fast streams. Scientists suspect similar species exist in neighbouring countries.

The most dramatic new species is this pitcher-plant, Nepenthes bokorensis. The plant climbs up to seven metres, with the pitchers reaching a length of 25cm, and consuming ants and other insects. The roots are used to ease the pains of childbirth.

Also newly described in 2009 was Musa chunii, a wild banana. So far it has only been found in one nature reserve in China's Yunnan Province, and there are reports from neighbouring Burma.

The Bare-faced bulbul was first noted 15 years ago but only recently has it been traced to its home in the karst limestones of Laos. Conservationists hope that its remote location will keep it safe from encroachment.

A similar hope applies to this bat, Murina eleryi, which also populates the forests of remote karst landscape - this time in Vietnam. It is one of five mammals newly described in 2009.

One of 10 new reptiles, this snake belongs to the Elapid group, which are mostly venomous - including the king cobra. Coluberoelaps nguyenvansangi, however, is a very different beast, lacking in fangs