Molluscs › River Mussels
Thick-shelled Mussel
Unio crassus
580 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
- 580 observations are recorded in the imported source snapshot. Observation source
Easily confused with
Swollen River-musselUnio tumidus
Painter's MusselUnio pictorum
Duck MusselAnodonta anatina
Unio mancusStudy checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 3,025 |
|---|---|
| Alaska | 3,020 |
| Russia | 158 |
| Bashkortostan | 39 |
| Lithuania | 25 |
| Vilnius County | 24 |
| Kursk Oblast | 23 |
| Ukraine | 21 |
| Kostroma Oblast | 15 |
| Nizhny Novgorod Oblast | 9 |
Counts show where people looked, not only where it lives.
Traits
Physical
- Shell-bearingProtected by a hard shellFrom its classification
Group and habits
- Filter feederFeeds by filtering suspended food particles from water.From its classification
Classification
| Kingdom | Animals · Animalia |
|---|---|
| Phylum | Molluscs · Mollusca |
| Class | Bivalves · Bivalvia |
| Order | Freshwater Mussels · Unionida |
| Family | River Mussels · Unionidae |
| Genus | Unio |
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 Thick-shelled Mussel with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.