Species affinis

Species affinis (abbreviations:. .. . Sp aff, aff or affine ) is a term used in biological taxonomy term. In zoology and botany, he added to the binomial names of species in order to show that one or more specimens of the studied population with a known and named species are not closely related but identical.

Example: If a snail as " Lucapina aff. aegis " determines that say that this snail which the named type Lucapina aegis similar ( a strong morphological affinity to the housing of this type has ), but comes from a different, closely related species, with the one who makes the determination, from different reasons (usually too little information ) may appoint any new way.