Ploeotia corrugata Larsen and Patterson 1990

• Main Author: Patterson, Won Je Lee David J.
• Format: Text
• Language: unknown
• Published: Zenodo 2000
• Subjects: Biodiversity; Taxonomy; Protozoa; Euglenozoa; Euglenoidea; Peranemida; Peranemidae; Ploeotia; Ploeotia corrugata; Botany Bay; North Atlantic
• Online Access: https://dx.doi.org/10.5281/zenodo.5281791; https://zenodo.org/record/5281791

Ploeotia corrugata Larsen and Patterson, 1990 (®gures 17a, 18a±d) Description. Cell measuring 8±20 Mm long (mostly 13±15 Mm) and 6±12 Mm wide. Cell outline elliptical to rhomboid, dorsally convex and ventrally ¯attened. Seven ridges on the dorsal side; two of which appear as a marginal rim. The right half of the cell is slightly thicker than the left, with a slight ridge down the middle of the ventral side against which the recurrent ¯agellum lies. The posterior end of the cell is indented. With two ¯agella of unequal length; the anterior ¯agellum is about the same length as the cell, beats rapidly from side to side with an irregular wave motion when the cell glides. The posterior ¯agellum is about 1.5±2.2 times the length of the cell and tapers slightly towards the posterior end of the cell. The reservoir is on the left ventral side of the cell and the ingestion organelle with two rods extends from right anterior of cell to left posterior. Moves by smooth gliding. Common, description based on observations of 15 cells. Remarks. This species was ®rst described by Larsen and Patterson (1990) from subtropical and tropical Australia, North Atlantic, Brazil, Danish Wadden Sea, Denmark, England, Fiji, Hawaii, Panama and has also been reported from the USA, and previous reported cell length ranges from 7 to 15 Mm (Larsen and Patterson, 1990; Patterson et al ., 1993; Farmer and Triemer, 1994; Ekebom et al ., 1996; Patterson and Simpson, 1996; Tong et al ., 1998). It is widespread and often common, but not in the winter season. The cells described here are generally in agreement with the observations of Ekebom et al . (1996) and of Farmer and Triemer (1994) under the name Lentomonas applanatum (basionym Entosiphon applanatum Preisig, 1979). We suspect that L. applanatum is synonymous with P. corrugata (Ekebom et al ., 1996) because the size ranges of the two species overlap; L. applanatum , about 10 Mm, P. corrugata , 7±15 Mm, and both species have seven ridges on the dorsal side of the cell. However, the species cannot be synonymized until the uncertainty with respect to protrusion of the ingestion apparatus of L. applanatum sensu Farmer and Triemer is clari®ed. Ploeotia corrugata resembles P. decipiens Larsen and Patterson, 1990 in general appearance, but it is distinguished by the number and prominence of the dorsal ridges, slightly smaller size and indented posterior end. : Published as part of Patterson, Won Je Lee David J., 2000, Heterotrophic ¯ agellates (Protista) from marine sediments of Botany Bay, Australia, pp. 483-562 in Journal of Natural History 34 on page 526 : {"references": ["LARSEN, J. and PATTERSON, D. J., 1990, Some \u00af agellates (Protista) from tropical marine sediments, Journal of Natural History, 24, 801 \u00b1 937.", "PATTERSON, D. J., NYGAARD, K., STEINBERG, G. and TURLEY, C., 1993, Heterotrophic \u00af agellates and other protists associated with oceanic detritus throughout the water column in the mid North Atlantic, Journal of the Marine Biological Association of the United Kingdom, 73, 67 \u00b1 95.", "FARMER, M. and TRIEMER, R. E., 1994, An ultrastructural study of Lentomonas applanatum (Preisig) n. g. (Euglenida), Journal of Eukaryotic Microbiology, 41, 112 \u00b1 119.", "EKEBOM, J., PATTERSON, D. J. and VORS, N., 1996, Heterotrophic \u00af agellates from coral reef sediments (Great Barrier Reef, Australia), Archiv fuEr Protistenkunde, 146, 251 \u00b1 272.", "PATTERSON, D. J. and SIMPSON, A. G. B., 1996, Heterotrophic \u00af agellates from coastal marine and hypersaline sediments in Western Australia, European Journal of Protistology, 32, 423 \u00b1 448.", "TONG, S. M., NYGAARD, K., BERNARD, C., VORS, N. and PATTERSON, D. J., 1998, Heterotrophic \u00af agellates from the water column in Port Jackson, Sydney, Australia, European Journal of Protistology, 34, 162 \u00b1 194.", "PREISIG, H. R., 1979, Zwei neue Vertreter der farblosen Euglenophyta, Schweizenrische Zeitschrift fuEr Hydrologie, 41, 155 \u00b1 160."]}