L. fabalis
Reticulata colour form; light brown with darker zig zag pattern. Also chequered 22Dof 22 Differentiation L. obtusata/L. fabalis and reticulate 21Dof 21 Differentiation L. obtusata/ L. fabalis . Usually the commonest colour form of both species on shores exposed to wave action.
White initial whorls resembling spirorbid worm shell are of the white early juvenile stage; this feature is found mainly on L. fabalis, but erosion of colour on L. obtusata can be mistaken for it.
Height 6.6 mm. West coast Anglesey, North Wales. March 2014
Full account at: 02 Differentiation L. obtusata/L. fabalis

marinvert.senckenberg.science/image-browse/