New taxa of loricate euglenoids Strombomonas and Trachelomonas from Thailand

Abstract

Five new species and one new variety of loricate euglenoid taxa were discovered in Thailand: Strombomonas starmachii Duangjan and Wolowski, S. chiangmaiensis Duangjan, Trachelomonas peerapornpisalii Duangjan and Wolowski, T. thailandicus Duangjan and Wolowski, T. reticulato-spinifera Duangjan and T. hystrix var. paucispinosa Prowse. We propose to raise the variety to species level [T. paucispinosa (Prowse) Duangjan and Wolowski, stat. et comb. nov.]. The morphology and fine lorica ultrastructure of the species are described. All taxa are documented by SEM images and some by LM micrographs.