Taxa included

Briggs, T.S. & Ubick, D. (1988). Cavernicoles from Cave Gulch, Santa Cruz County. California Caver 38(2): 43–44.

Taxon
Fissilicreagris imperialis (Muchmore, 1969) (Pseudoscorpiones: Neobisiidae) 44, Microcreagris imperialis