Diptera Calyptratae from the Federated Malay States (First paper)

Diptera Nematocera from the Federated Malay States Museums

Diptera Nematocera from the Lowlands of North Borneo

DIRECTION 1: Addition to the Official Lists and Official Indexes of certain scientific names and of the titles of certain books dealt with in Opinions 182 to 194

Direction 10: Determination of the Gender to be Atributed to the Names of Sixty Genera of Mammals Placed on the Official List of Generic Names in Zoology in the Period up to the End of 1936

Direction 104: Grant of the Status of Availability to the Names Published by C. A. Clerck in 1757 in the Work Aranei Svecici and Addition of the Title of that Work to the Official List of Works approved as Available for Use in Zoological Nomenclature

Direction 105: Brisson, 1760, Ornithologie: Restriction to Certain Portions of that Work of the Validation Granted Under the Plenary Powers

DIRECTION 106. CORRECTION OF THE ENTRY IN OPINION 972, REFERRING TO THE AUTHOR OF THE SPECIFIC NAME SAPORTAE WHICH WAS PLACED ON THE OFFICIAL INDEX OF REJECTED AND INVALID SPECIFIC NAMES IN ZOOLOGY, WITH THE NAME NUMBER 969

Direction 11: Determination of the Gender to be Attributed to the Names of One Hundred and Seventy four Genera of the Order Decapoda (Class Crustacea) Placed on the Official List of Generic Names in Zoology in the Period up to the End of 1936

Direction 12: Validation under the Plenary Powers of the Generic Name Astacus Fabricius, 1775 (Class Crustacea, Order Decapoda) (correction of an Erroneous Entry made in the Official List of Generic Names in Zoology by the Ruling Given in Opinion 104)