Chumma

Chumma is a spider genus with only two described species, as of February 2016. The genus is the only one in the family Chummidae. Both species were first described in 2001 and are known from males and females.
They are small, three-clawed spiders with a strong dorsal scutum. They have no fovea, and the posterior and median spinnerets are reduced. The males of C. gastroperforata have two pairs of abdominal pockets, which play a role in mating.