Document 36/6 - 1953
Proposed determination under the plenary powers of the interpretation of the nominal species Actinocrinus gilbertsoni Phillips, 1836 (Class Crinoidea) - 1956
Addendum to application relating to the proposed determination under the plenary powers of the interpretation of the nominal species Actinocrinus gilbertsoni Phillips, 1836 (Class Crinoidea) - 1957