Declaration 20: Clarification of the Status of a Family-group Name where the Name of the Type Genus of the Taxon so Named is Suppressed under the Plenary Powers

Declaration 21: Clarification of the Interpretationof Article 30 of the Regies Regarding the Specific Name to be Accepted as the Name for the Type Species of Agenus where that Species has Two or More Objectively Synonymous Such Names

Declaration 22: Clarification of Rule (a) in Article 30 in Relation to the Status there under of a Designation of a Type Species for a Genus Made at the Time of the Publication of the Generic Name Concerned when that Designation or Some Part of it is Ambiguous or is Qualified by a Mark of Interrogation

Declaration 23: Clarification of the Status under the Law of Homonymy of Each of Three Pairs of Specificnames based, in the Case of the Names Comprised in Each Pair, upon the Same Geographical Term and Differing from One Another only in Spelling

Declaration 24: Clarification of the Status under Article 25 of the Regies of a Name for a Taxon Published Conditionally and Matters Incidental Thereto

Declaration 25: Clarification of Rule (g) in Article 30 in Relation to the Selection of the Type Species of a Genus in a Case where the Nominal Species so Selected, though not itself Cited at the Time of the Establishment of the Genus in Question, is Objectively Identical with Another Nominal Species which was so Cited

Declaration 26: Clarification of the Expression" Monotypical genus" for the Purposes of Rule (c) in Article 30 of the Regies

Declaration 27: Clarification of the Question of the Species to be Accepted under Rule (f) in Article 30 as the Type Species of a Nominal Genus Established as a Substitute for a Previously Established such genusbut with a Designated Type Species Different from that of the Nominal Genus so Replaced

Declaration 28: Clarification of the Status of a Name Given to a Family-group taxon based Upon Amis-identified Type Genus

Declaration 29: Introduction and Definition of the Expression " Linnean tautonymy " in relation to the Determination of the Type Species of a Nominal Genusunder Rule (d) in Article 30