No interactions present.
Martin. Can we tell anything from distribution, habitat and numbers present?
I have found a huge swathe of these but would prefer not to dissect, of course.
Any more thoughts about separation please?
1) S.putris animal pale (sometimes dark); last whorl broadly rounded
2) O. pfeifferi animal dark (sometimes pale); last whorl more elongated
3) O. sarsi larger and narrower shell than O. pfeifferi [rare but possibly under recorded; dissection needed]
Dissection easily distinguishes Succinea with epiphallus outside penis sheath
from Oxyloma with epiphallus inside penis sheath.
Maybe worth checking a few to confirm shell shape id is correct.
Martin - very useful. Pretty certain I have elegans (other sightings and in range). Post will come in the next few days. Link will be here.
In the above for O. pfeifferi read O. elegans [the accepted name changed awhile ago].
Lat/Lng: 50.9, -3.7
OS grid ref: SS8712