Description
0Pk2 , typically as two distinct segments , an anterior segment , long , linear, with no more than 2 files of zig-zag kinetosomes, and a posterior segment, typically "V"-shaped; prominent postequatorial velum ; with long, stiff , caudal cilia ; three genera. b ~ (i> t;? 1. Postoral curve of paroral dikinetid , fragmented ; V-part of 0Pk2 , very open .. . Schizocalyptra 1'. Postoral curve of paroral dikinetid not fragmented ........ ... ...... .. ... .......... .............. ...... .. 2 2. 4-6 right-ventral somatic kineties along outer curve of paroral dikinetid ending at postoral suture , not opposite left ventral kineties .. .... . . . . . . . . . . . .. . .. . . . . . . . .. . .. . .. . . . . .. . .. . ... 2'. Right-vent ral somatic kineties extending past posterior lim it of paroral dikinetid, ending at postoral suture , opposite left ventral kineties .. . ...... .. .. ....... ...... ... .. ...... ... ... ... ......... Pleuronema
Type species
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0Pk2 , typically as two distinct segments , an anterior segment , long , linear, with no more than 2 files of zig-zag kinetosomes, and a posterior segment, typically "V"-shaped; prominent postequatorial velum ; with long, stiff , caudal cilia ; three genera. b ~ (i> t;? 1. Postoral curve of paroral dikinetid , fragmented ; V-part of 0Pk2 , very open .. . Schizocalyptra 1'. Postoral curve of paroral dikinetid not fragmented ........ ... ...... .. ... .......... .............. ...... .. 2 2. 4-6 right-ventral somatic kineties along outer curve of paroral dikinetid ending at postoral suture , not opposite left ventral kineties .. .... . . . . . . . . . . . .. . .. . . . . . . . .. . .. . .. . . . . .. . .. . ... 2'. Right-vent ral somatic kineties extending past posterior lim it of paroral dikinetid, ending at postoral suture , opposite left ventral kineties .. . ...... .. .. ....... ...... ... .. ...... ... ... ... ......... Pleuronema