Mallomonas cf. pseudomatvienkoae B.Y.Jo, W.Shin, H.S.Kim, Siver & R.A.Andersen

Kapustin, Dmitry A., Gusev, Evgeniy S., Lilitskaya, Galina G. & Kulikovskiy, Maxim S., 2020, Silica-scaled chrysophytes from the Ukrainian Polissia, Cryptogamie, Algologie 20 (12), pp. 121-135 : 130

Mallomonas cf. pseudomatvienkoae B.Y.Jo, W.Shin, H.S.Kim, Siver & R.A.Andersen

( Fig. 3C )

DISTRIBUTION. — South Korea ( Jo et al. 2013); Russia ( Gusev et al. 2019b); probably a widely distributed taxon but often erroneously identified as M. matvienkoae .

REMARKS

The scales of this species have base-plate pores restricted to the distal part and a thick secondary layer that covers the distal one-half to two-thirds of the scale. A single scale observed by us was entirely covered by the secondary layer of silica.

Figures

FIG. 3. — Mallomonas Perty taxa from the Ukrainian Polissia: A, Mallomonas matvienkoae Asmund & Kristiansen, SEM; B, Mallomonas ouradion K.Harris & D.E.Bradley, SEM; C, Mallomonas cf. pseudomatvienkoae B.Y.Jo, W.Shin, H.S.Kim, Siver & R.A.Andersen, SEM; D, Mallomonas paludosa Fott; E, F, Mallomonas papillosa K.Harris & D.E.Bradley emend. K.Harris, TEM (E) and SEM (F); G, Mallomonas pillula f. valdiviana Dürrschmidt, SEM; H, Mallomonas punctifera Korshikov, SEM; I, Mallomonas pugio D.E.Bradley, SEM; J, Mallomonas rasilis Dürrschmidt, SEM; K, L, Mallomonas schwemmlei Glenk emend. Glenk & Fott, body (K) and apical (L) scales, SEM; M, Mallomonas striata Asmund, SEM; N, Mallomonas teilingii W.Conrad, SEM; O, Mallomonas teres Nemcova & Kapustin, SEM; P, Mallomonas cf. tonsurata Teiling, SEM. Scale bars: A-F, I-M, O, P, 1 µm; G, 0.5 µm; H, N, 2 µm.