Olive green shade of olivacea colour form of L. obtusata; identification confirmed by penis. Olivacea colouration is common on, and almost diagnostic of, L. obtusata on shores well sheltered from waves as it is very rare or absent on L. fabalis in Britain, but an algal coating can mislead, see image 20Dof 20 Differentiation L. obtusata/L. fabalis .
Spire forms a raised domed.
Height 16.1 mm. Kingsbridge Estuary, South Devon, England. September 2016. Leg. S. Taylor.
Full account at: 02 Differentiation L. obtusata/L. fabalis

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