There are only two genera in this small family. Ctenomyces with only one species (C. serratus), has a Chrysosporium anamorph in which one-celled microconidia are formed as terminal or intercalary cells of hyphae.
Species of Arthroderma also sometimes produce Chrysosporium-like microconidia but are better known by their macroconidial synanamorphs Epidermophyton, Microsporum and Trichophyton.
These are multicellular with transverse septa, and are spindle-shaped or cylindrical. They are typical and readily recognized. The perfect state has not been found for many of these anamorphs, but they are suspected to be phylogenetically close to Arthroderma.