Rhabditophora

Class recognized by Barcode of Life Data Systems, GBIF classification, Wikidata, and Wikimedia Commons

Phylum recognized by PBDB in DwCA

Species recognized by Protists in Singapore

Recognized by South Georgia and the South Sandwich Islands, Timor Sea Species List, United Kingdom Species List, South Atlantic Species List, Indian Ocean Species List, Arctic Ocean Species List, Southern Ocean Species List, North Pacific Species List, South Pacific Species List, North Atlantic Species List, North Sea Species List, Celtic Sea Species List, Irish Sea Species List, Kattegat Species List, Skagerrak Species List, English Channel Species List, Black Sea Species List, Adriatic Sea Species List, Balearic Sea Species List, Strait of Gibraltar Species List, Ionian Sea Species List, Tyrrhenian Sea Species List, Beaufort Sea Species List, Gulf of Aqaba Species List, Red Sea Species List, Arabian Sea Species List, Bay of Bengal Species List, Andaman Sea Species List, Malacca Strait Species List, Great Australian Bight Species List, Caribbean Sea Species List, Gulf of Mexico Species List, Bay of Fundy Species List, Gulf of St Lawrence Species List, Philippine Sea Species List, Seto Inland Sea Species List, Bering Sea Species List, Gulf of Alaska Species List, Rio de la Plata Species List, Gulf of Thailand Species List, Singapore Strait Species List, Tasman Sea Species List, The Netherlands Species List, Sweden Species List, Delete- old US Species List, Romania Species List, Molukka Sea Species List, Ireland Species List, Italy Species List, Mexico Species List, Myanmar Species List, Federated States of Micronesia Species List, France Species List, Finland Species List, Halmahera Sea Species List, Germany Species List, Indonesia Species List, Guinea Bissau Species List, Belgium Species List, Czech Republic Species List, Chile Species List, Colombia Species List, Celebes Sea Species List, Coral Sea Species List, Bass Strait Species List, Austria Species List, Banda Sea Species List, Aegean Sea Species List, Australia Species List, Ceram Sea Species List, Norway Species List, NMNH Invertebrate Zoology, Harvard Museum of Comparative Zoology DwCA, BioImages, the virtual fieldguide, UK, Appeltans et al, Brazil Species List, Canada Species List, China Species List, Japan Species List, Philippines Species List, Russia Species List, Ceram Sea Species List, Alboran Sea Species List, and United States Species List

Subphylum recognized by World Register of Marine Species

Doubtful according to GBIF classification

Harvest ancestor according to GBIF classification, Global Biotic Interactions, Global Biotic Interactions, NMNH type specimens, Flickr Group, Flickr Group, and TreatmentBank