Diodora graeca Greek Keyhole Limpet, Common Keyhole Limpet

Diodora graeca is commonly referred to as Greek Keyhole Limpet, Common Keyhole Limpet. Difficulty in the aquarium: Not suitable for aquarium keeping. Toxicity: Toxic hazard unknown.

Benoît Segerer

Diodora graeca, France 2025

Courtesy of the author Benoît Segerer Benoît Segerer. Please visit www.inaturalist.org for more information.

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lexID:: 6353
AphiaID:: 139951

Scientific:: Diodora graeca
German:: Griechische Schlüssellochschnecke, Europäische Schwellenschnecke
English:: Greek Keyhole Limpet, Common Keyhole Limpet

Category:: Snails

Family tree:: Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Lepetellida (Order) > Fissurellidae (Family) > Diodora (Genus) > graeca (Species)
Initial determination:: (Linnaeus, ), 1758

Occurrence:: Tunesien, Straße von Gibraltar, the Black Sea, the North Sea, Adriatic Sea (Mediterranean), Belgium, East-Atlantic Ocean, Egypt, European Coasts, France, Ireland, Israel, Italy, Marmara Sea ( Sea of Marmara), Morocco, North Atlantic Ocean, Spain, the British Isles, the Cape Verde Archipelago, the Mediterranean Sea, Turkey
Marine Zone:: Intertidal (Eulittoral), intertidal zone between the high and low tide lines characterized by the alternation of low and high tide down to 15 meters
Sea depth:: Meter
Habitats:: Coastal waters, Rocky shores, Rock coasts, Rocky, hard seabeds, Seawater, Sea water
Size:: 0.39" - 0.79" (1,0cm - 2,5cm)
Temperature:: 50 °F - 77 °F (10°C - 25°C)
Food:: Carnivore, Food specialist, Predatory, Sponges
Difficulty:: Not suitable for aquarium keeping
Offspring:: None
Toxicity:: Toxic hazard unknown

CITES:

Not evaluated

Red List:

Not evaluated (NE)

Related species at Catalog of Life:

Diodora aguayoi
Diodora alta
Diodora arcuata
Diodora arnoldi
Diodora aspera
Raue Schlüssellochschnecke
Diodora australis
Diodora benguelensis
Diodora bermudensis
Diodora bollonsi
Diodora calyculata
Diodora canariensis
Diodora candida
Diodora cayenensis
Diodora clathrata
Diodora corbicula
Diodora cruciata
Diodora crucifera
Diodora delicata
Diodora demartiniorum
Diodora digueti
Diodora dorsata
Diodora dysoni
Diodora edwardsi
Diodora elevata
Diodora elizabethae
Diodora fargoi
Diodora fluviana
Diodora fontainiana
Diodora fragilis
Diodora funiculata
Diodora fuscocrenulata
Diodora galeata
Diodora gibberula
Diodora graeca
Griechische Schlüssellochschnecke, Europäische Schwellenschnecke
Diodora granifera
Diodora harrassowitzi
Diodora inaequalis
Diodora italica
Italienische Schlüssellochschnecke
Diodora jaumei
Diodora jukesii
Diodora kraussi
Diodora lentiginosa
Diodora levicostata
Diodora lima
Diodora lincolnensis
Diodora lineata
Diodora listeri
Diodora menkeana
Diodora meta
Diodora minuta
Diodora mirifica
Diodora mus
Maus-Schlüssellochschnecke
Diodora namibiensis
Diodora occidua
Diodora octagona
Diodora panamensis
Diodora parviforata
Diodora patagonica
Diodora philippiana
Diodora pica
Diodora pileopsoides
Diodora procurva
Diodora producta
Diodora punctifissa
Diodora pusilla
Diodora quadriradiata
Diodora ruppellii
Rüppells Schlüssellochschnecke
Diodora sarasuae
Diodora saturnalis
Diodora sayi
Diodora sculptilis
Diodora semilunata
Diodora serae
Diodora sieboldii
Diodora singaporensis
Diodora spreta
Diodora subcalyculata
Diodora suprapunicea
Diodora tanneri
Diodora ticaonica
Diodora variegata
Diodora vetula
Diodora viridula
Diodora wetmorei
Diodora yokoyamai

More related species in this lexicon:

Diodora sp.
Schlüssellochschnecken

Author:: Meerwasser-Lexikon Team
Publisher:: Meerwasser-Lexikon.de
Created:: 2013-11-04 20:32:07
Last edit:: 2026-02-22 17:23:11

Info

Diodora graeca (Linnaeus, 1758)

Diodora graeca is a sea slug belongs to the family Fissurellidae, the keyhole limpets. These limpets have a circular opening at the apical end of the shell, which serves both as an excurrent and anal opening. They do not have the ability to hide within the shell.

Lves on hard substrates at depths of 250 m . Diodora graeca feeds on sponge (genus Hymeniacidon und Halichondria).

Synonymised names
Cemoria montaguana Leach, 1852 · unaccepted (synonym)
Diodora (Diodora) graeca (Linnaeus, 1758) · unaccepted
Diodora apertura (Montagu, 1803) · unaccepted > superseded combination
Fissurella bonnanii Nardo, 1847 · unaccepted > unavailable name (name introduced in synonymy and...)
Fissurella corrugata O. G. Costa, 1839 · unaccepted > junior subjective synonym
Fissurella dominicana O. G. Costa, 1839 · unaccepted (synonym)
Fissurella exorata Millet, 1865 † · unaccepted
Fissurella graeca (Linnaeus, 1758) · unaccepted
Fissurella graeca f. miranda De Gregorio, 1885 · unaccepted (synonym)
Fissurella graeca var. conica Monterosato, 1884 · unaccepted (synonym)
Fissurella graeca var. depressa Monterosato, 1884 · unaccepted (synonym)
Fissurella graeca var. ima De Gregorio, 1885 · unaccepted (synonym)
Fissurella graeca var. mucronata Monterosato, 1884 · unaccepted (synonym)
Fissurella graeca var. supragibba De Gregorio, 1885 · unaccepted (synonym)
Fissurella labiatoides Millet, 1864 † · unaccepted
Fissurella mamillata Risso, 1826 · unaccepted (synonym)
Fissurella occitanica Récluz, 1843 · unaccepted (synonym)
Fissurella recurvata O. G. Costa, 1839 · unaccepted (synonym)
Fissurella reticulata (da Costa, 1778) · unaccepted (synonym)
Fissurella reticulata (Donovan, 1803) · unaccepted
Patella apertura Montagu, 1803 · unaccepted > junior subjective synonym
Patella graeca Linnaeus, 1758 · unaccepted (original combination)
Patella reticulata Donovan, 1803 · unaccepted (synonym)
Patella reticulata Da Costa, 1778 · unaccepted (a junior synonym)
Sipho radiatus T. Brown, 1827 · unaccepted > junior subjective synonym

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