Flat Periwinkle geometry

Flat Periwinkle geometry

Observation - Flat Periwinkle geometry. Description: Trying to convince myself.. This post is linked to http://www.ispot.org.uk/node/328587 In the geometry pictures the comparison is with the common Flat Periwinkle (L.obtusata) See http://www.seawater.no/fauna/mollusca/fabalis.html - old name is L.maria

Trying to convince myself..
This post is linked to
http://www.ispot.org.uk/node/328587
In the geometry pictures the comparison is with the common Flat Periwinkle (L.obtusata)
See http://www.seawater.no/fauna/mollusca/fabalis.html - old name is L.mariae
Picture two also shows L.obtustata and L.saxatalis