Category:Operculum (gastropods)

**operculum**
	hard structure which closes the aperture of a gastropod when the animal retreats into the shell
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Instance of	anatomical structure;
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	Q1480851; BabelNet ID: 03123097n
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English: Operculum is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc.

Media in category "Operculum (gastropods)"

The following 59 files are in this category, out of 59 total.

AB. Afsluit schijfjes Mata Biak Ned. Nieuw Guinea 1961-62.JPG 1,660 × 1,277; 174 KB
Abyssochrysos melanioides operculum.png 1,860 × 1,038; 584 KB
AD. Mijn verzameling Mata Biak's Ned.Nieuw Guinea 1961-62.JPG 2,848 × 1,649; 428 KB
Amnicola dalli shell.jpg 668 × 501; 129 KB
Basel 2012-10-06 Batch Part 3 (8).JPG 3,648 × 2,736; 3.54 MB
Bithynia bavelensis operculum.png 200 × 259; 22 KB
Bithynia leachii operculum.png 139 × 150; 8 KB
Bithynia rings.jpg 3,203 × 3,402; 1.27 MB
Bithynia tentaculata operculum.png 200 × 267; 24 KB
Bithynia tentaculata.jpg 719 × 539; 244 KB
Bithynia transsilvanica operculum.png 217 × 257; 34 KB
Chrysomallon squamiferum operculum 2.png 518 × 498; 223 KB
Chrysomallon squamiferum operculum.png 364 × 400; 105 KB
Cremnoconchus syhadrensis operculum 2.png 118 × 144; 14 KB
Cremnoconchus syhadrensis operculum.png 118 × 144; 14 KB
Euspira catena (Naticidae) - (operculum), Crozon, France.jpg 1,000 × 750; 308 KB
Filopaludina martensi operculum 2.png 190 × 214; 28 KB
Filopaludina martensi operculum.png 190 × 214; 31 KB
FMIB 48520 Example of Amphibola (ovellana Chem), the only true Pulmonate which posesses an operculum.jpeg 210 × 202; 12 KB
FMIB 48687 Various forms of opercula -.jpeg 851 × 368; 82 KB
FMIB 48688 Various forms of opercula.jpeg 859 × 211; 29 KB
FMIB 52738 Various forms of opercula -.jpeg 225 × 285; 47 KB
FMIB 52739 Various forms of opercula -.jpeg 123 × 296; 27 KB
FMIB 52741 Various forms of opercula -.jpeg 170 × 263; 31 KB
FMIB 52746 Various forms of opercula -.jpeg 126 × 144; 12 KB
FMIB 52747 Various forms of opercula -.jpeg 108 × 96; 7 KB
FMIB 52749 Various forms of opercula -.jpeg 60 × 204; 9 KB
FMIB 52750 Various forms of opercula -.jpeg 36 × 111; 2 KB
FullSizeR.jpg 3,022 × 2,642; 702 KB
Limacina helicina operculum.png 252 × 482; 51 KB
Marstonia comalensis operculum 2.png 420 × 584; 125 KB
Marstonia comalensis operculum.png 380 × 548; 78 KB
Melongena corona 4.jpg 479 × 376; 45 KB
Notice the Operculum (2218260574).jpg 3,020 × 2,008; 1.18 MB
Opercula coral reef Pliocene Cyprus.jpg 2,483 × 1,516; 2.19 MB
Operculum (2763437372).jpg 800 × 621; 148 KB
Operculum (2763437504).jpg 800 × 621; 142 KB
Operculum of Mollusca, Jerusalem- A Medical Diagnosis Exhibition IMG 9776.JPG 1,502 × 1,509; 383 KB
Operculum of the Pomacea snail.jpg 665 × 773; 40 KB
Operculum.jpg 294 × 499; 38 KB
Parafossarulus crassitesta - operculum - St Bernard.png 734 × 892; 553 KB
Pomacea snail and its operculum.jpg 384 × 415; 50 KB
PSM V07 D585 Aperture of shell closed by operculum.jpg 545 × 513; 35 KB
Rapana Black Sea 2008 G1.jpg 1,600 × 1,300; 1,017 KB
Rapana Black Sea 2009 G3.jpg 3,000 × 2,500; 2.46 MB
Rapana Black Sea 2009 G4.jpg 2,500 × 2,250; 2.65 MB
Rapana Black Sea 2009 G5.jpg 2,600 × 2,400; 2.03 MB
Rapana Black Sea 2009 G6.jpg 2,600 × 2,400; 2.39 MB
Semicassis pyrum (Lamarck, 1822) (AM MA71187-3).jpg 2,551 × 3,579; 1.68 MB
Semisulcospira libertina operculum.png 482 × 635; 28 KB
Strombus pugilis.jpg 665 × 959; 265 KB
Tegula viridula corneal operculum.jpg 770 × 762; 59 KB
Theodoxus fluviatilis operculum 2.png 570 × 760; 436 KB
Theodoxus fluviatilis operculum.png 585 × 780; 462 KB
Tropidofora fimbriata haemostoma IleRonde 8605.jpg 125 × 123; 19 KB
Turbo Petholatus.jpg 500 × 375; 64 KB
Turbo Radiatus.jpg 450 × 338; 57 KB
Turbo sandwicensis (6434968025).jpg 1,760 × 1,320; 245 KB
Viviparus contectus met operculum2.JPG 506 × 614; 29 KB