Chamaepinnularia circumborealis Lange-Bert.

Chamaepinnularia circumborealis Lange-Bert.

Chamaepinnularia circumborealis Lange-Bert. in Iconogr. Diatomol. 6: 35. 1999

Isotype: Aqua dulcis parum subsalsa, Yugorsky paeninsula, Siberia boreo-occidentalis, 1995, N.V. Vekhov

Holotype: Aqua dulcis parum subsalsa, Yugorsky paeninsula, Siberia boreo-occidentalis, 1995, N.V. Vekhov (FR: Praep. RUS40)

Isotype: Russia YU-2

Isotype: Yaroslavl