The Sicydiinae are a small subfamily (about 118 species) of freshwater gobies, with only nine genera.[1] They are usually found in fast-moving mountain streams in tropical islands. They are characterized by highly developed rounded suction discs and an amphidromous lifecycle. Adult lengths range from 2 to 15 cm (0.79 to 5.91 in).[2][3][4] Some species are popular in the aquarium trade.[5] The genera included under Sicydiinae are:[6]
^Keith, P.; Marquet, G.; Taillebois, L. (2011). "Discovery of the freshwater genus Sicyopus (Teleostei: Gobioidei: Sicydiinae) in Madagascar, with a description of a new species and comments on regional dispersal". Journal of Natural History. 45 (43–44): 2725. Bibcode:2011JNatH..45.2725K. doi:10.1080/00222933.2011.602479.
^Ronald E. Watson & Maurice Kottelat (2006). "Two new freshwater gobies from Halmahera, Maluku, Indonesia (Teleostei: Gobioidei: Sicydiinae)". Ichthyological Exploration of Freshwaters. 17 (2): 121–128.