decempennatæ

from The Century Dictionary.

• In Sundevall's classification, a group of conirostral oscine passerine birds of the old world, represented by the weavers (Ploceinæ), whydahbirds (Viduinæ), and hedge-sparrows (Accentorinæ), as collectively distinguished from other fringilline birds by the possession of ten instead of only nine primaries.