Taxa included

Saito, H. & Yasuda, N. (1990). On two species of erigonine spiders from Hokkaido hitherto unknown to Japan. Atypus 96: 10-15.

Taxon
Metopobactrus prominulus (O. Pickard-Cambridge, 1873) (Linyphiidae) 11, f. 1-6 (mf), Metopobactrus prominulus
Glyphesis cottonae (La Touche, 1946) (Linyphiidae) 13, f. 7-10 (m), Glyphesis cottonae

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