Included taxa
Chamberlin, R. V. (1921b). On some arachnids from southern Utah. The Canadian Entomologist 53(11): 245-247. doi:10.4039/Ent53245-11 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Philodromus infuscatus utus | Philodromidae | 245, pl. 10, f. 6 (Df) | Philodromus utus |
| Physocyclus cornutus | Pholcidae | 247, pl. 10, f. 5 (f) | Physocyclus cornutus |
| Physocyclus globosus | Pholcidae | 247, pl. 10, f. 4 (f) | Physocyclus globosus |
| Physocyclus tanneri | Pholcidae | 245, pl. 10, f. 1-3 (Df) | Physocyclus tanneri |
Genera
No genus found for this reference