The
wrestling halfbeak (
Dermogenys pusilla) also known as
Malayan halfbeak is a
species of
viviparous halfbeak native to the fresh and brackish waters of rivers and coastal regions in South-East Asia, in
Singapore,
Thailand,
Indonesia,
Thailand,
Malaysia,
Borneo and
Sumatra. It is a small, slender, livebearing fish, with the elongated lower jaw characteristic of its family. The colour of this species varies, depending on where the specimen is found.