TY - CHAP A1 - Sowerby, G. B. II TI - Monograph of the genus Pteropoda. In: Conchologia iconica, or illustrations of the shells of molluscous animals, vol. 20: pls 1-6 and unpaginated text. L. A. Reeve, London. [1877, no month date] UR - https://www.biodiversitylibrary.org/page/8230531 PY - 1877 Y2 - 2024-03-29 ER -