Tectura virginea for comparison.
1: red-brown V with point near apex of interior.
2: slight threadlike radiating striae.
3: colour faded on dead shell.
4: pattern on central early growth worn away.
5: excentric apex tilted forwards, 18% of shell-length from anterior.
6: anterior profile slightly concave.
7: posterior profile slightly convex.
8: base oval, widest at posterior.

APPENDIX re range advance/retreat: flic.kr/p/2jW74ig

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