Opisthotropis typica, the olive mountain keelback, is a species of natricine snake found in the Philippines, Indonesia, and Malaysia. www.reptile-database.org.
Habitat
They inhabit forests, particularly subtropical/tropical moist lowland forest, and wetlands, such as permanent rivers, streams, or creeks including waterfalls.Habitat https://www.mybis.gov.my/sp/21407
Nature
They are active during the night. They reproduce through production of eggs that have membranes and/or shells.https://www.mybis.gov.my/sp/21407
References