Isarachnanthus nocturnus (Hartog, 1977) Dataset NCBI Taxonomy Classification kingdom Metazoa phylum Cnidaria class Anthozoa order Penicillaria family Arachnactidae genus Isarachnanthus species Isarachnanthus nocturnus Name Homonyms Isarachnanthus nocturnus Isarachnanthus nocturnus (Hartog, 1977)