Molluscs › Keyhole Limpets
Giant Keyhole Limpet
Megathura crenulata
4,990 observations in the source records
25 photos
Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.
Photos you add are credited to you, and you keep the copyright.
What the records say
- 4,990 observations are recorded in the imported source snapshot. Observation source
Easily confused with
Volcano Keyhole LimpetFissurella volcano
Rough Keyhole LimpetDiodora aspera
Owl LimpetLottia gigantea
Black SeahareAplysia vaccaria
Two-spotted Keyhole LimpetFissurellidea bimaculata
- New Zealand Keyhole LimpetMonodilepas monilifera
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 68,974 |
|---|---|
| California | 4,655 |
| Mexico | 10 |
| Baja California | 7 |
| Baja California Sur | 3 |
Counts show where people looked, not only where it lives.
Traits
Physical
- Shell-bearingProtected by a hard shellFrom its classification
Classification
| Kingdom | Animals · Animalia |
|---|---|
| Phylum | Molluscs · Mollusca |
| Class | Gastropods · Gastropoda |
| Order | Lepetellida |
| Family | Keyhole Limpets · Fissurellidae |
| Genus | Megathura |
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- How much to rely on each source
Remember the name next time.
Practise Giant Keyhole Limpet with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.