Included taxa
Okumura, K. I. (2023b). First recorded species of spiders from Chiba and Ibaraki Prefectures. Kishidaia 123: 62-63. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Gnaphosa potanini | Gnaphosidae | 63, f. 4 (m) | Gnaphosa potanini |
| Gongylidioides communis | Linyphiidae | 63, f. 2 (f) | Gongylidioides communis |
| Neoantistea quelpartensis | Hahniidae | 63, f. 1 (f) | Neoantistea quelpartensis |
| Robertus nojimai | Theridiidae | 63, f. 3 (f) | Robertus nojimai |
Genera
No genus found for this reference