Home›Glossary›FGlossaryfrenumEdit this pageA connecting or restraining membrane, such as that connecting the tongue to the base of the mouth.Used in 18 species profilesRhinogobius candidianusRhinogobius chiengmaiensisRhinogobius duospilusRhinogobius filamentosusRhinogobius flumineusRhinogobius formosanusAll 18 →