Conservation Actions

There are no existing conservation actions in place for this species. Ex-situ breeding programmes should be implemented as soon as possible, and potentially translocations as the original habitat is severely degraded into monoculture plantation. Public educational programmes should be put in place to raise awareness on the vulnerability of the species due to habitat fragmentation or modification.

Location Information

This species is only known from Pekan Nanas area in Johor, Peninsular Malaysia (Tan & Ahmad 2018).

Geographic Range



Population Information

As this species is restricted to a few road side blackwater ditches in established oil palm plantations, and is highly prone to further disturbance from ditch improvements and road run-off pollution, it is very likely that the population is in sharp decline. There is probably less than 100 individuals in the wild (H.H. Tan pers. comm. 2019).


The major threat to this species is habitat destruction and degradation. Its habitat has been converted to monoculture plantation and it now persists in degraded roadside blackwater ditches. Further threats are ditch modification and expansion as well as road run-off pollution (H.H. Tan pers. comm. 2019).

IUCN Red List Account Link

Please click here to see the species' IUCN Red List Account page.