three fish heads showing operculum (gill covers) - fish operculum stock illustrationsThree fish heads showing Operculum (gill covers)
Close frontal view of a semicircle angelfish swimming in clear reef water at Mombasa Marine National Park in Mombasa, Kenya on June 6 2026. Blue fin...KENYA-MOMBASA-WILDLIFE-SEMICIRCLE-ANGELFISH
wildlife, operculum of fish, head of a perch, vintage illustration, 19th century - fish operculum stock illustrationsWildlife, Operculum of fish, Head of a Perch, Vintage illustration, 19th Century
old engraved illustration of lister's river snail (viviparus contectus) a species of large, freshwater snail with an operculum and a gill, an aquatic gastropod mollusk in the family viviparidae, the river snails - fish operculum stock pictures, royalty-free photos & imagesOld engraved illustration of Lister's river snail (Viviparus contectus) a species of large, freshwater snail with an operculum and a gill, an aquatic gastropod mollusk in the family Viviparidae, the river snails
This is a brown rockfish , which has a distinctive dark splotch at the top of the operculum.This is a brown rockfish (Sebastes auriculatus), which has a distinctive dark splotch at the top of the operculum
Juvenile striped perch has bright blue accents along the operculum.A juvenile striped perch (Embiotoca lateralis) has bright blue accents along the operculum
