Included taxa
Holmberg, E. L. (1883b). Géneros y especies de arácnidos argentinos nuevos ó poco conocidos. Anales de la Sociedad Científica Argentina 15: 232-239. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Actinosoma pentacanthum | Araneidae | 237 | Actinosoma pentacanthum |
| Micrathena furcata | Araneidae | 236 | Acrosoma difissum |
| Micrathena peregrinatorum | Araneidae | 232 (Df) | Acrosoma peregrinatorum |
Genera
| Genus | Family | Page |
|---|---|---|
| Actinosoma Holmberg, 1883 | Araneidae | ? |