Rhinogobius
Classification
Genus:
Rhinogobius
Family: Gobiidae - Gobies
Order: Gobiiformes - Gobies
Superclass: Osteichthyes - Bony fishes
Description
Rhinogobius is a genus of primarily freshwater gobies native to tropical and temperate parts of eastern Asia. Most are small, streamlined in shape, and often sexually dimorphic. Few are of commercial importance, but R. duospilus is fairly widely traded as an aquarium fish.