Tribe (biology)
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In biology, a tribe is a taxonomic rank above genus, but below family and subfamily.<ref>Template:Citation Article 4</ref><ref>Template:Cite book</ref> It is sometimes subdivided into subtribes. By convention, all taxa ranked above species are capitalized, including both tribe and subtribe.Template:Cn
In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas). The tribe Hominini is divided into subtribes by some scientists; subtribe Hominina then comprises "humans". The standard ending for the name of a zoological subtribe is "-ina".
In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae".
In bacteriology, the form of tribe names is as in botany, e.g., Pseudomonadeae, based on the genus name Pseudomonas.<ref>Template:Citation</ref>
Rank recognition
An unfamiliar taxonomic rank cannot necessarily be identified as a tribe merely by the presence of one of the standard suffixes:Template:NoteTag
- zoological -ini uniquely suffixes the animal tribe<ref name="icznart29">Template:Citation Article 29</ref>
- zoological -ina uniquely suffixes the animal subtribe<ref name="icznart29"/>
- zoological -inae uniquely suffixes the animal subfamily<ref name="icznart29"/>
- botanical -eae also suffixes class -phyceae, suborder -ineae, family -aceae, and subfamily -oideae (these additional -eae ranks are present in bacteria, plants, algae, and fungi, but not animals)<ref name="iaptart16">Template:Citation Article 16</ref><ref name="iaptart19">Template:Citation Article 19</ref>
Accordingly, working within animals alone, subfamily -inae, tribe -ini, and subtribe -ina are unique suffixes to their specific taxonomic ranks.<ref name="icznart29"/> At the other extreme, working within algae alone, -eae suffixes class -phyceae, suborder -ineae, family -aceae, subfamily -oideae, and tribe -eae. The longer suffixes themselves suffixed with -eae must first be eliminated before recognizing an unfamiliar -eae designation as belonging to rank tribe.<ref name="iaptart16"/><ref name="iaptart19"/>