Sicyopterus erythropterus is a species of goby in the family Oxudercidae. It is only known from the waters of the Tirawiwa River, which is a major tributary of the Wapoga River, which in turn flows into the eastern edge of Cenderawasih Bay in Papua New Guinea.[1]
Sicyopterus erythropterus can reach a standard length of 6.8cm (02.7inches).