The other four are M. mesembrinum, M.
lineata, M. formosae and M. longinasus. Two species, M. alba and M. hautus, are found in Vietnam, and M.
bounthobi is found in Laos. M. mesembrinum is endemic to Taiwan and has recently been designated as
endangered (Chen et al. 2013). Chen and Fang (2002) distinguished M. mesembrinum from M. lineata and
considered it as endemic to Taiwan