Kathablepharidae Vurs 1992

• Main Authors: Lee, Won Je, Patterson, David J.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2000
• Subjects: Biodiversity; Taxonomy; Chromista; Cryptophyta; Leucocryptea; Kathablepharida; Kathablepharidae; Greenland
• Online Access: https://doi.org/10.5281/zenodo.5281827; http://treatment.plazi.org/id/313A87D7FF8A6B11AEB7265EFCBD4EBF

Kathablepharidae Vørs, 1992 Kathablepharis remigera (Vørs, 1992) Clay and Kugrens, 1999 (fi gures 22g, 23a -c) Description. Cell measuring 12-18 Mm long, not fl attened, with two rows of extrusomes located ventrally. Cells are oblong or cylindrical with two fl agella inserting subapically. The fl agella are thick, longer than the cell, unequal in length and may coil around the body during swimming. The anterior fl agellum is about twice the length of the cell and may coil up during resting, and the posterior fl agellum is about three times the cell length. The nucleus lies in the middle of the cell. Cells rotate while swimming. Rarely observed. Remarks. This species was recently transferred from Leucocryptos to the genus Kathablepharis by Clay and Kugrens (1999). It has been found from marine sites in Canada, Denmark, England, Gulf of Finland and Greenland, and the length was reported to be 7-25 Mm under the name Leucocryptos remigera (Vørs, 1992a, 1992b, 1993a; Vørs et al ., 1995; Tong, 1997b). We observed one very large cell (40 Mm) which bore the general characteristic s of Kathablepharis (fi gure 23c), but the posterior fl agellum coiled up in the resting cell like Platychilomona s psammobi a . The cell has pellicular striations. This species resembles Leucocryptos marina (Braarud, 1953) Butcher, 1967, but L. marina may be distinguishe d by the droplet-shape d body, two fl agella of similar length, fl agellar beat patterns, and different swimming pattern (see Vørs, 1992c). Platychilomonas psammobia Larsen and Patterson, 1990 (fi gures 22h, 23d, e) Description. Cell outline oval, 18-20 Mm long, 11-13 Mm wide, laterally compressed, with two rows of extrusomes lying at the margin of the cell. Two fl agella insert laterally and subapically in a depression in the right ventral side of the cell and are longer than the cell. In resting cells, the anterior fl agellum is held to the left margin of the cell and the posterior fl agellum is coiled up. The nucleus is located in the posterior part of the cell. Cells move ...