Species affinis

Species affinis (commonly abbreviated to: sp. aff., aff., or affin.) is taxonomic terminology in zoology and botany. In open nomenclature it indicates that available material or evidence suggests that the proposed species is related to, has an affinity to, but is not identical to, the species with the binomial name that that follows. The Latin word affinis can be translated as closely related to, or akin to.

An author who inserts n.sp., or sp.nov., aff before a species name thereby states the opinion that the specimen is a new, previously undescribed species, but that there may not (yet) be enough information to complete a formal description. To use aff. alone, implies that the specimen differs suggestively from the holotype but that further progress is necessary to confirm that it is a novel species.

An example would be: a gastropod shell listed as Lucapina aff. aegis would mean that this shell somewhat resembles the shell of Lucapina aegis, but is thought more likely to be another species, either closely related to, or closely resembling Lucapina aegis. In a suitable context it also may suggest the possibility that the shell belongs to a species that has not yet been described.

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AFF

AFF may refer to:

Companies

Adult FriendFinder, a commercial dating website

American Family Fitness, a Virginia-based fitness organization

Organizations

Afghanistan Football Federation, the governing body of football in Afghanistan

Arab Film Festival, a California nonprofit that hosts the largest Arab film festival in the United States

Armed Forces Foundation, a military non-profit support group

ASEAN Football Federation, a subset of nations within the Asian Football Confederation from Southeast Asia

Aspies For Freedom, a group advocating autism rights

Other uses

A Fine Frenzy, a singer

Accelerated freefall, a method of skydiving training

Advance-fee fraud, a confidence trick in which the target is persuaded to advance relatively small sums of money in the hope of realizing a much larger gain

aff., an abbreviation for affinis in biological open nomenclature

AFF (Automated Flight Following), a system to automatically track aircraft in flight

Aff (river), in western France

United States Air Force Academy, IATA airport code

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location on Google Map

Aff (river)

The Aff is a river in Brittany, western France. It is a 65-kilometre (40 mi) long tributary of the river Oust. It is canalized for 7 kilometres (4.3 mi) between Glenac (its confluence with the Oust) and La Gacilly.