01 Haminoea navicula

01 Haminoea navicula

Spiral lines obscured as worn strandline specimen.
1 to 1: height of shell; from base to protruding aperture (3).
2: involute apex recessed below level of aperture.

Height 21.2 mm. Strandline shell. South Devon, England. May 2017. Leg. H. Morgenroth & K. Rose.