Included taxa
Yaginuma, T. & Saito, H. (1981). A new cave spider of the genus Porrhomma (Araneae, Linyphiidae) found in a limestone cave of Shikoku, southwest Japan. Journal of the Speleological Society of Japan 6: 33-36. 
Species
| Species | Family | Page / figures | published as |
|---|---|---|---|
| Porrhomma rakanum | Linyphiidae | 33, f. 1-4 (Dmf) | Porrhomma rakanum |
Genera
No genus found for this reference