paired fins

• pectoralOf the chest
• pelvicOf the hip girdle
• flippersFoot-worn swim aids
• swimmingLocomotion through water
• fishGilled aquatic vertebrate

gills · dorsal · tail · aquatic · streamlined · propulsion · scales · steering · balance · ray · cartilage · shark · salmon · gliding · undulating · lateral · buoyancy · maneuvering