Included taxa
Marx, G. (1891). A contribution to the knowledge of North American spiders. Proceedings of the Entomological Society of Washington 2: 28-37. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Antillorena polli | Zodariidae | 31, pl. 1, f. 2 (Df) | Habronestes americanus |
| Homalonychus selenopoides | Homalonychidae | 30, pl. 1, f. 1 (Df) | Homalonychus selenopoides |
| Lathys foxi | Dictynidae | 35, pl. 1, f. 5 (Df) | Prodalia foxii |
| Lathys pallida | Dictynidae | 34, pl. 1, f. 4 (Df) | Neophanes pallidus |
| Lutica maculata | Zodariidae | 33, pl. 1, f. 3 (Df) | Lutica maculata |
| Usofila gracilis | Telemidae | 36, pl. 1, f. 6 (Dmf) | Usofila gracilis |
Genera
| Genus | Family | Page |
|---|---|---|
| Homalonychus Marx, 1891 | Homalonychidae | 29 |
| Lutica Marx, 1891 | Zodariidae | 32 |
| Neophanes Marx, 1891 | Dictynidae | 33 |
| Prodalia Marx, 1891 | Dictynidae | 34 |
| Usofila Keyserling, 1891 | Telemidae | 35 |