Physa acuta
European physa, Left-handed pondsnail at Fyshwick, ACT
Identify this sighting
| Physa acuta | 17 Dec 2020 | trevorpreston | ||
| Gastropoda sp. (class) | 8 Dec 2020 | MichaelBedingfield | ||
| Unverified | 8 Dec 2020 | Ct1000 |
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User's notes
These minuscule snails were seemingly feeding in the ponds at jerrabomberra. At the absolute most they would be as big as the top of my pinky in length.
3 comments
8 Dec 2020
We have no experts on molluscs just yet. Will park it here until later.
16 Aug 2021
I agree that this sighting appears to be an instance of a water snail feeding just beneath the water surface. From what I can gather they have the ability to crawl just below the air-water interface, manipulating their foot in such a way as to form a cone-shaped funnel into which an inhalant current is generated, thereby drawing food particles into the funnel to be ingested. I find this type of feeding behaviour very interesting and a fascinating skill.
16 Aug 2021
might be Physa acuta, if it had 4 or 5 finger-like tentacles on the underside of the shell emanating from the shell aperture, that's what it would be
Location information
- Coordinates 149.159578-35.316021
- Maps Jerrabomberra Wetlands
- Places Fyshwick, ACT
Sighting information
- 4 Abundance
- 8 Dec 2020 06:00 PM Recorded on
- Ct1000 Recorded by
Collections
- Other Invertebrates Snails & Slugs (Gastropoda) Molluscs (Mollusca) Ct1000 Canberra & Southern Tablelands NatureMapr Physa acuta
Species information
- Physa acuta Scientific name
- European physa, Left-handed pondsnail Common name
- Not Sensitive
- Exotic
- Minor weed or pest
- Up to 664.24m Recorded at altitude
- External link More information