12 Lacuna vincta

12 Lacuna vincta

Top row: horseshoe snout-tips opened into shallow curves.
Bottom row: horseshoe snout-tips closed to form cylinders; tips deeply wrinkled.
Menai Strait. August 2013.

Full SPECIES DESCRIPTIONat flic.kr/p/gTkfF4
Sets of OTHER SPECIES at: /.