Sicydiinae

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]

• Akihito Watson, Keith, and Marquet, 2007
• Cotylopus Guichenot, 1863
• Lentipes Günther, 1861
• Parasicydium Risch, 1980
• Sicyopterus Gill, 1860
• Sicyopus Gill, 1863
• Stiphodon Weber, 1895
• Sicydium Cuvier & Valenciennes, 1837

Sicydiinae
Sicyopterus japonicus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Gobiiformes
Family:	Oxudercidae
Subfamily:	Sicydiinae T. N. Gill, 1860
Genera
See text