TY  - JOUR
A1  - ICZN
JO  - Opinions and Declarations Rendered by the International Commission on Zoological Nomenclature
SP  - 239
EP  - 266
C1  - 3: 239-266
TI  - Opinion 200. Validation, under the Plenary Powers, of the accustomed usage of the generic names Tethys Linnaeus, 1767, and Aplysia Linnaeus, 1767 (class Gastropoda)
UR  - https://www.biodiversitylibrary.org/page/34653698
VL  - 3
PY  - 1954
Y2  - 2026-07-11
ER  -