Notomastus (Clistomastus) angulatus Hartman-Schroder 1965 Dataset Rank SPECIES Classification kingdom Animalia phylum Annelida class Polychaeta order Capitellida family Capitellidae genus Notomastus species Notomastus tenuis Name Homonyms Notomastus (Clistomastus) angulatus Hartman-Schroder 1965 Notomastus angulatus Chamberlin 1919