Phylum Gastrotricha Metchnikof 1865 Gastrotricha 



Order Macrodasyoidea Zelinka 1889 Macrodasyida 



Order Chaetonotoidea Zelinka 1883 Chaetonotida 



Phylum Echinodera (Kinorhyncha Leuckart 1854) . . . Echinodera 



Phylum Nematomorpha Potts 1908 Xematomorpha 



Class Gordididea Orthepp 1924 Gordiacea 



Class Nectonematoidea Rauther 1930 Nectonematidea 



Phylum Nematoda Rudolphi 1808 Nemata Cobb, 1919 



Class Phasmidia Chitwood and Chitwood 1933 Phasmidea 



Order Rhabditida Chitwood 1933 Rhabditida 



Suborder Rhabditata Chitwood 1933 Rhabditina 



Suborder Ascaridata Skrjabin 1915 Ascaridina 



Suborder Strongylata Railliet & Henry 



1913 Strongylina 



Order Spirurida Chitwood 1933 Spirurida 



Suborder Spirurata Raillett and Henry 



1913 Spirurina 



Suborder Camallanata Chitwood 1936 Camallanina 



Class Aphasmidia Chitwood and Chitwood 1933 Aphasmidea 



Order Enoplida Chitwood 1933 Enoplida 



Suborder Enoplata Filipjev 1929 Enoplina 



Suborder Dorylaimata Chitwood 1933 Dorylaimina 



Suborder Dioctophymata Skrjabin 1923 Dioctophymatina 



Order Chromadorida Chitwood 1933 Chromadorida 



Suborder Monhysterata Filipjev 1929 Monhysterina 



Suborder Desmoscolecata Filipjev 1929 Desmoscolecina 



Suborder Chromadorata Filipjev 1929 Chromadorina 



Phylum Tardigrada Spallanzani 1776 Tardigrada 



Class Heterotardigrada Marcus 1927 Heterotardigradea 



Order Arthrotardigrada Marcus 1927 Arthrotardigradida 



Order Echiniscoidea Richters 1926 Echiniscida 



Class Eutardigrada Richters 1926 Eutardigradea 



Phylum Chaetognatha Leuckart 1854 Chaetognatha 



Phylum Bryozoa Ehrenberg 1831 Bryozoa 



Class Entoprocta Nitsche 1869 Entoproctea 



Class Ectoprocta Nitsche 1869 Entoproctea 



Subclass Gymnolaemata Allman 1856 Gymnolaemia 



Order Ctenostomata Busk 1852 Ctenostomida 



Order Cyclostomata Busk 1852 Cyclostomida 



Suborder Tubipora Hagenow 1851 Tubiporina 



Suborder Cerioporina Hagenow 1851 Cerioporina 



Suborder Ceramoporoidea Bassler 1913 Ceramoporina 



Suborder Hederelloidea Bassler 1934 Hederellina 



Order Trepostomata Ulrich 1883 Trepostomida 



Order Cryptostomata Vine 1883 Cryptostomida 



Order Cheilostomata Busk 1852 Cheilostomida 



Suborder Anasca Eevinsen 1909 Anascina 



Suborder Ascophora Lcvinsen 1909 Ascophorina 



Subclass Phylactolaemata Allman 1856 Phylactulacmia 



[10] 



