Sikkim keelbackThe Sikkim keelback is a species of grass snake in the family Colubridae. The species is endemic to South Asia and Myanmar. It is closely related to the Himalayan keelback, and some treat this species as a synonym.Geographic rangeH. sieboldii is found in Bangladesh, Bhutan, India, Myanmar, Nepal, and Pakistan.EtymologyThe specific name, sieboldii, is in honor of German zoologist Karl [Theodor Ernst von Siebold].ReproductionH. sieboldii is oviparous.