TY - JOUR A1 - Bergh, L. S. R. JO - Siboga-Expeditie C1 - 50: 1-248, pls 1-20 TI - Die Opisthobranchiata der Siboga-expedition UR - https://www.biodiversitylibrary.org/page/11650714 PY - 1905 Y2 - 2024-03-29 ER -