Basam

Homalopterula ripleyi is a hillstream loach known only from a small area of northern Sumatra, Indonesia, on the eastern slopes of the Barisan range. Fowler (1940) described it from a single specimen as the only member of his new genus Homalopterula. Gerhard Ott and Dirk Dettmers collected it in 2003 for the first time in over 60 years, from small, clear forest streams over bedrock, boulders, rocks and gravel.