Included taxa
Mello-Leitão, C. F. de (1940e). Tres géneros extraños de arañas argentinas. Notas del Museo de la Plata 5(Zool. 43): 251-258. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Eminella ctenops | Philodromidae | 253 (Dm) | Catuna ctenops |
| Gnatholycosa spinipalpis | Lycosidae | 252 (Dm) | Gnatholycosa spinipalpi |
| Simprulla argentina | Salticidae | 256 (Df) | Simprulla argentina |
| Tricongius mutilatus | Prodidomidae | 255 (Dm) | Oltacloea mutilata |
| Unicorn argentina | Oonopidae | 257 (Dj) | Orchestina argentina |
Genera
| Genus | Family | Page |
|---|---|---|
| Catuna Mello-Leitão, 1940 | Philodromidae | 253 |
| Gnatholycosa Mello-Leitão, 1940 | Lycosidae | 251 |
| Oltacloea Mello-Leitão, 1940 | Prodidomidae | 254 |