These 121 genera belong to the family Ptinidae, death-watch and spider beetles.
There are about 100 additional genera in Ptinidae, with at least 2,200 described species.
[1] More species are listed under its subfamily Anobiinae.
Data sources: i = ITIS,[3] c = Catalogue of Life,[4] g = GBIF,[5] b = Bugguide.net[1]