Rhogostoma minus Belar, 1921

Chae, Kyu-Seok, Jung, Jongwoo, Lee, Won Je & Min, Gi-Sik, 2022, Unrecorded species of Korean protozoans discovered through the project of ‘ Discovery of Korean Indigenous Species’ II, Journal of Species Research 11 (4), pp. 335-342 : 338-339

12. Rhogostoma minus Belar, 1921

ùüďOiṘ (ṵÿ) ( Fig. 3B, C )

Rhogostoma minus Belar, 1921 .

Material examined. Uichang-gu (35°14′47.82″N, 128° 37′07.84″E), Changwon-si, South Korea; 25 April 2021.

Deposition. NIBRPR0000111050.

World distribution. Czech Republic and South Korea.

Diagnosis. Cell broader diameter seen from dorsal end is 6.5-8.5 μm. Cleft-like aperture is beneath the cell hard to see. Pseudopodia emerge through the cleft, can extend many times the cell length and pull the cell along the substratum. The cells pull over leading pseudopodia as trailing pseudopodia retract, progress smooth. Refractive granules; several small vesicles; large lateral contractile vacuole; nucleus usually central. Form groups of several cells.

Figures

Fig. 3. Photomicrographs of Cercozoa (A-C) and Euglenozoa (D).A, Euglypha tuberculate; B, general appearance of Rhogostoma minus; C, pseudopodia of R. minus (arrow); D, Parabodo caudatus, general appearance of cell, showing ventral view. Note flagellar insertion (arrow). Scale bars:A=50μm; B-D=10μm.