Article 25. Formation and treatment of names. A scientific name must be formed and treated in accordance with the relevant provisions of Article 11 and Articles 26 to 34 (also see Appendix B, General Recommendations).

Recommendation 25A. Abbreviations. On first mention of a scientific name in a published work all components should be printed in full. Subsequently, if an abbreviation is used for any part of a binomen or a trinomen, the abbreviation should be unambiguous and it should always be followed by a full stop (period) to avoid it being thought to be a complete word.

Example. The mosquito name Aedes aegypti should be so printed on first mention, but subsequently may be given as A. aegypti (and A. a. aegypti for Aedes aegypti aegypti) but in a case where confusion is likely (e.g. with Anopheles), Aedes aegypti might be abbreviated to Ae. aegypti (and An. maculipennis used without ambiguity for a species of Anopheles).

Recommendation 25B. Derivation. In publishing a new scientific name an author should state its derivation.

Recommendation 25C. Responsibility of authors forming new names. Authors should exercise reasonable care and consideration in forming new names to ensure that they are chosen with their subsequent users in mind and that, as far as possible, they are appropriate, compact, euphonious, memorable, and do not cause offence.