Included taxa
Atkinson, G. F. (1886). Descriptions of some new trapdoor spiders; their nests and food habits. Entomologica Americana 2: 109-117, 128-137. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Antrodiaetus unicolor | Antrodiaetidae | 130 (Df) | Nidivalvata angustata |
| Antrodiaetus unicolor | Antrodiaetidae | 130, pl. 5, f. 8-10, 13, 23 (Df) | Nidivalvata marxii |
| Myrmekiaphila foliata | Euctenizidae | 132, pl. 5, f. 6-7, 12, 14, 22 (Df) | Myrmekiaphila foliata |
| Ummidia audouini | Halonoproctidae | 136, pl. 5, f. 5 (Df) | Pachylomerus turris |
| Ummidia carabivora | Halonoproctidae | 133, pl. 5, f. 1-4 (Df) | Pachylomerus carabivorus |
| Ummidia carabivora | Halonoproctidae | 133, pl. 5, f. 21 (D) | Pachylomerus quadrispinosus |
| Ummidia carabivora emarginata | Halonoproctidae | 134 (Df) | Pachylomerus carabivorus emarginatus |
Genera
| Genus | Family | Page |
|---|---|---|
| Myrmekiaphila Atkinson, 1886 | Euctenizidae | ? |