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Peranemidae
The peranemids are a group of phagotrophic flagellates, single-celled eukaryotes or protists. They belong to the Euglenida, a diverse lineage of flagellates that contains the closely related euglenophyte algae. Like these algae, peranemids have flexible cells capable of deformation or metaboly, and have one or two flagella in the anterior region of the cell. They are classified as family (biology), family Peranemidae (ICZN) or Peranemataceae (ICBN) within the monotypic order (biology), order Peranemida (ICZN) or Peranematales (ICBN). Description Peranemids are unicellular eukaryotes or protists. They are flagellates, with one or two flagella for locomotion. The flagella are located in the anterior end of the cell, and are used in a gliding motility, gliding motion in contact with the substrate to propel the cell forward. In addition, like some other euglenids, their cells exhibit a certain movement known as metaboly or 'euglenid motion' characterized by extreme flexibility and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Urceolus
''Urceolus'' (, 'pitcher') is a genus of heterotrophic flagellates belonging to the Euglenozoa, a phylum of single-celled eukaryotes or protists. Described by Russian biologist Konstantin Mereschkowsky in 1877, its type species is ''Urceolus alenizini''. Species of this genus are characterized by deformable flask-shaped cells that exhibit at least one flagellum that is active at the tip, arising from a neck-like structure that also hosts the feeding apparatus. They are found in a variety of water body sediments across the globe. According to molecular phylogenetics, evolutionary studies, ''Urceolus'' belongs to a group of Euglenozoa known as peranemids, closely related to the euglenophyte algae. Description ''Urceolus'' species are single-celled eukaryotes or protists. Their cell (biology), cells are sack-shaped, narrow at the anterior (anatomy), anterior end and expanded at the posterior (anatomy), posterior end. The cells exhibit flexibility and squirming movements, more vig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
