Peranemid
[1] In addition, like some other euglenids, their cells exhibit a certain movement known as metaboly or 'euglenid motion' characterized by extreme flexibility and malleability.[2] Peranemids are a group of Euglenida, a diverse lineage of flagellates containing the closely related euglenophyte algae.In particular, both peranemids and euglenophytes belong to the Spirocuta clade, which contains all flexible euglenids capable of elastic movement or metaboly.This quality is due to the high number of proteinaceous strips that are present underneath their cell membrane, in comparison to more basal euglenids such as ploeotids which are completely rigid.[3][4] However, these analyses are incomplete, since there is a lack of molecular data for the peranemid genus Teloprocta, and other genera such as Urceolus and Heteronema are not fully represented.