E. R.  Trueman, ?The structure of the ligament of Pedalion (Perna)?, Proceedings of the Malacological Society of London, vol. 30, part 6, pp. 161-166, 1954.

E. R.  Trueman, ?The structure of the ligament of Pedalion (Perna)?, Proceedings of the Malacological Society of London, vol. 30, part 6, pp. 161-166, 1954.