taxon objectively. The continued existence of paratypes or paralectotypes does not in itself preclude the designation of a neotype.
75.2. Circumstances excluded. A neotype is not to be designated as an end in itself, or as a matter of curatorial routine, and any such neotype designation is invalid.
Example. If an author designates a neotype for Xus albus Smith, a species about whose identity there is no doubt and which is not involved in any complex zoological problem at the time at which it was designated, the purported “neotype” has no name-bearing status.
75.3. Qualifying conditions. A neotype is validly designated when there is an exceptional need and only when that need is stated expressly and when the designation is published with the following particulars:
75.3.1. a statement that it is designated with the express purpose of clarifying the taxonomic status or the type locality of a nominal taxon;
75.3.2. a statement of the characters that the author regards as differentiating from other taxa the nominal species-group taxon for which the neotype is designated, or a bibliographic reference to such a statement;
75.3.3. data and description sufficient to ensure recognition of the specimen designated;
75.3.4. the author’s reasons for believing the name-bearing type specimen(s) (i.e. holotype, or lectotype, or all syntypes, or prior neotype) to be lost or destroyed, and the steps that had been taken to trace it or them;
75.3.5. evidence that the neotype is consistent with what is known of the former name-bearing type from the original description and from other sources; however, a neotype may be based on a different sex or life stage, if necessary or desirable to secure stability of nomenclature;
75.3.6. evidence that the neotype came as nearly as practicable from the original type locality [Art. 76.1] and, where relevant, from the same geological horizon or host species as the original name-bearing type (see also Article 76.3 andRecommendation 76A.1);
75.3.7. a statement that the neotype is, or immediately upon publication has become, the property of a recognized scientific or educational institution, cited by name, that maintains a research collection, with proper facilities for preserving name-bearing types, and that makes them accessible for study.
75.4. Priority. The first neotype designation published for a nominal species-group taxon in accordance with the provisions of this Article is valid and no subsequent designation, except one made by the Commission under the plenary power [Art. 78.1], has any