Carduelis aurelioi The slender-billed greenfinch (Chloris aurelioi) is an extinct songbird in the finch family Fringillidae.

The slender-billed greenfinch was described in 2010 and originally placed in the genus Carduelis with other greenfinches,[1] but living greenfinches were later moved to the separate genus Chloris in 2012.

[2] The combination of Chloris aurelioi has not been used in the subsequent academic literature.

[3] The bill of the slender-billed greenfinch was longer, thinner, and more conical than the bills of other greenfinches, more similar in shape to the bills of chaffinches.

This Fringillidae-related article is a stub.