Lepidochromonas Kristiansen sp.

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 : 125

Lepidochromonas Kristiansen sp.

( Fig. 1F )

REMARKS

Scoble & Cavalier-Smith (2014) removed Paraphysomonas species with meshed scales into a new genus Clathromonas Scoble & Cavalier-Smith based on scale morphology and phylogenetic analyses of 18S rDNA sequences. However, this name is illegitimate under the rules of the International Code of Nomenclature for algae, fungi and plants, so Kapustin & Guiry (2019) reinstated the genus Lepidochromonas Kristiansen.

We could not identify this species based on the single mesh scale observed in this study. The outer ring of the mesh scale bears holes of different diameters, the larger holes separated by 4-5 smaller ones. It is very likely that this scale belongs to an undescribed Lepidochromonas species.

Figures

FIG. 1. — Chrysosphaerella Lauterborn, Paraphysomonas De Saedeleer emend. Scoble & Cavalier-Smith, Lepidochromonas Kristiansen and Spiniferomonas E.Takahashi species from the Ukrainian Polissia:A, Chrysosphaerella brevispina Korshikov,spine scale,TEM;B, Stomatocyst of Chrysosphaerella coronacircumspina Wujek & Kristiansen with broken spine scale and plate scales, SEM; C, Paraphysomonas acuminata Scoble & Cavalier-Smith, TEM; D, Paraphysomonas truncata (Preisig & D.J.Hibberd) Scoble & Cavalier-Smith, TEM; E, Paraphysomonas sp., scale with broken spine, SEM; F, Lepidochromonas sp., TEM; G, Spiniferomonas bourrellyi E.Takahashi,spine scale with plate scales attached to it, SEM;H, Spiniferomonas cf.trioralis E.Takahashi, spine scale,SEM;I, Chrysosphaerella longispina J.B.Petersen & J.B.Hansen, SEM. Scale bars: A, D, E, G, H, 1 µm; B, C, 2 µm; F, 0.5 µm; I, 5 µm.