Pteromeris corbis (Phillipi ).
26 juvenile Bivalves on a glass mount. Collected by sieving in 1977. One shows a circular hole drilled in it by a predatory gastropod. Nice detail under magnification.
Pliocene, Red Crag.
Walton-on-the-Naze, Essex.
Slide : 7.7 x 2.2 x 0.7 cm.
