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Opercular series in bony fish: operculum (yellow), preoperculum (red), interoperculum (green) and suboperculum (pink) The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills ; it is also used for respiration and feeding.
An operculum (fish), a flap that covers the gills in bony fishes and chimaeras. The cover that rapidly opens a cnida of a cnidarian such as a jellyfish or a sea anemone. The lid may be a single hinged flap or three hinged flaps arranged like slices of pie. [1] [3] In insects, the operculum is the name for one or more lids covering the tympanal ...
Turbo marmoratus, known as the green turban, the marbled turban or great green turban, is a large species of marine gastropod with a thick calcareous operculum in the family Turbinidae, the turban snails. [1] The shells of these large sea snails have a very thick layer of nacre; this species has been commercially fished as a source of mother of ...
Ogcocephalid anglerfish are sometimes referred to as batfishes, [1] [2] deep-sea batfishes, [3] handfishes, and seabats. [4] They are found in tropical and subtropical oceans worldwide. [ 2 ] They are mostly found at depths between 200 and 3,000 m (660 and 9,840 ft), but have been recorded as deep as 4,000 m (13,000 ft).
Albino paradise fish. Paradise fish are fairly combative, harassing and attacking each other, as well as potentially assaulting and killing small fish. During a fight, the paradise fish will often change its color, usually displaying dark blue lateral lines on the sides of their bodies; extend its fins; and spread out its operculum. [5]
This is a colourful species with olive green on the back and upper flanks shading to reddish the lower flanks and abdomen. [5] There is a black spot on the between the lateral line and the spiny part of the dorsal fin. There is a pair of blue stripes beneath the eyes and the higher one continues on to the operculum. The caudal fin has a black ...
Ogcocephalus is a genus of marine ray-finned fishes belonging to the family Ogcocephalidae, the deep sea batfishes.The species in this genus are found in the Eastern Pacific Ocean and Western Atlantic Ocean, with most species in the eastern Atlantic Ocean where they live at shallower depths than the other ogcocephalid genera.
The common periwinkle or winkle (Littorina littorea) is a species of small edible whelk or sea snail, a marine gastropod mollusc that has gills and an operculum, and is classified within the family Littorinidae, the periwinkles. [2] This is a robust intertidal species with a dark and sometimes banded shell.