- From a monotypic taxon: This is a redirect from a monotypic spider taxon to its only lower-ranking member. In a biology-related article, when for example a family has only one genus, the family may be a redirect to the genus.
- Use {{R to monotypic taxon}} when making a redirect to a monotypic taxon from its only member, for example, from a species to the genus of which it is the only member.
- From a merge: This is a redirect from a page that was merged into another page. This redirect was kept in order to preserve the edit history of this page after its content was merged into the content of the target page. Please do not remove the tag that generates this text (unless the need to recreate content on this page has been demonstrated) or delete this page.