clathrulina elegans clathrulina elegans clathrulina elegans is a species of heliozoan eukaryotes in the order desmothoracida, which are a group of organisms usually sessile and found in freshwater environments. clathrulina elegans blaschka glass model of clathrulina elegans scientific classification domain: eukaryota (unranked): sar (unranked): rhizaria phylum: cercozoa class: granofilosea order: desmothoracida family: clathrulinidae genus: clathrulina species: c. elegans binomial name clathrulina eleganscienkowsky, 1867 subspecies clathrulina elegans var. planktonicum