International Commission on Zoological Nomenclature

OPINIONS and DIRECTIONS

works:

W

Walch J.E.I., 1768-1774. Die Naturgeschichte der Versteinerungen zur Erlauterung der Knorrischen Sammlung von Merkwurdigkeiten der Natur, Niirnberg (rejected for nomenclatural purposes because the author did not apply the principles of binominal nomenclature). Opinion 529

Weber F. 1795. Nomenclator Entomologicus secundum Entomologiam Systematicam ill. Fabricii, adjectis speciebus recens detectis et varietatibus. Opinion 17, Direction 32

Westwood J.O., 1839-1840. An Introduction to the modern Classification ofInsects, 2 volumes (in the separately-paged 'Synopsis' (pp. 158) appended to Volume 2, the species specified against the names of the genera there enumerated are to be treated as having there been selected to be the type species of those genera (Opinion 71)) (the dates to be accepted for the various parts of this work are as set out in the table below (Direction 63)). Direction 32