About Sylvirana nigrovittata (Blyth, 1856)
Sylvirana nigrovittata, commonly called the black-striped frog, black-spotted stream frog, and sapgreen stream frog, is a species of frog in the family Ranidae. Its confirmed distribution covers northeastern India, Bangladesh, Nepal, southern China, Myanmar, Thailand, Cambodia, Laos, and Vietnam. This species has been observed at elevations up to 800 meters above sea level. Sylvirana nigrovittata was formally redelimited in 2018, which means older published literature may refer to different species instead, and current species identifications for populations from India and Bangladesh remain uncertain. Sylvirana nigrovittata lives in gentle streams within evergreen forests, including evergreen gallery forests located in deciduous forest regions. Tadpoles of this species develop in calm sections of these streams. It is a common species. It faces threats from the loss of forest canopy over the streams it inhabits, as well as alterations to natural hydrology. Despite these threats, the International Union for Conservation of Nature does not classify this species as threatened.