Nacella concinna - WORLD RECORD SIZE , (Strebel, H., 1908)
Size
57.1 mm
Locality
Neko Harbour, Anctartica Pen.
Note
Very interesting specimen from South Pole! Impossible to find on the market. The registered WRS is 48mm, but I sold in the past a specimen of 53mm. Edge sligthly chipped. Fine++