H. subflava, 64 µm, Fochteloërveen, the Netherlands
Hyalosphenia subflava Cash, 1909
Diagnosis: Shell ovoid, smooth, yellowish, chitinous, compressed, without any structure; aperture with a thickened border.
Dimensions: Shell length 45–87 μm; 30–53 μm; aperture 13–14 μm. My measurements 41-110 µm long.
Ecology: Sphagnum and other mosses.
Geographical distribution: Likely cosmopolitan, if indeed a single species.
H. subflava, 41-84 µm long, all from the same sample (Indonesia, collected by Valentyna Krashevska)
H. subflava, 53 um – small forest pond with Sphagnum
H. subflava, 68 um, peatbog