Arthrodesmus longicornis J.Roy Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Charophyta class Conjugatophyceae order Desmidiales genus Staurodesmus species Staurodesmus incus Name Homonyms Arthrodesmus longicornis J.Roy ex West, 1892 Arthrodesmus longicornis J.Roy