Subphylum Ciliophora DoflL'iii 1901 Cilidphora 



Class Ciliata Perty 1852 Ciliatea 



Subclass Protociliata Mctcaif 1918 Protociliatia 



Order Opalinata Stein 1867 Opalinida 



Subclass Riiciliata Metcalt 1918 Euciliatia 



Order Holotricbida Stein 1859 Holotrichida 



Suborder Gymnostomina Biitscbli 1889 Gymnostomina 



Suborder Trichostomina Biitschli 1889 Trichostomina 



Suborder Astomina Minchin 1912 Astomina 



Order Spirotrichida Biitschli 1889 Spirotrichida 



Suborder Heterotrichina Stein 1859 Heterotrichina 



Suborder Oligotrichina Biitschli 1889 Oligotrichina 



Suborder Tintinnoina Claparede and 



Lachmann 1858 Tintinnoina 



Suborder Entodiniomorphina Rciclmow 



1929 Entodiniomorphina 



Suborder Hypotrichina Stein 1859 Hypotrichina 



Order Peritrichida Stein 1859 Peritrichida 



Order Chonotrichida Wallengren 1896 Chonotrichida 



Class Suctoria Claparede and Lachmann 1858 Suctorea 



Subkingdom Metazoa Haeckel 1877 Metazoa 



Branch Parazoa Sollas 1884 Parazoa 



Phylum Porifera Grant 1835 Porifera 



Class Calcarea Bowerbank 1864 Calcarea 



Order Homocoela Polejaeff 1883 Homocoelida 



Order Heterocoela Polejaeff 1883 Heterocoelida 



Class Noncalcarea Vosmaer 1887 Noncalcarea 



Order Myxospongida Dendy 1905 Myxospongida 



Order Hexactinellida O. Schmidt 1870 Hexactinellida 



Suborder Amphidiscophora F. E. Schulze 



1899 Amphidiscophorina 



Suborder Hexasterophora F. E. Schulze 



1899 Hexasterophorina 



Order Tetraxonida Dendy 1905 Tetraxonida 



Suborder Homosclerophora Dendy 1905 Homoscleropherina 



Suborder Astrophora Sollas 1888 Astrophorina 



Suborder Hadromerina Topsent 1898 Hadromerina 



Suborder Sigmatophora Sollas 1888 Sigmatopherina 



Suborder Halichondrina Vosmaer 1887 Halichrondrina 



Suborder Lithistida O. Schmidt 1870 Lithistidina 



Order Keratosa Grant 1861 Keratosida 



Branch Enterozoa Lankester 1878 Enterozoa 



Subbranch Enterocoela Lankester 1900 Enterocoela 



Phylum Coelenterata Leuckart 1848 Coelenterata 



Subphylum Cnidaria Milne Edwards & Haime 1857. . .Cnidara 



Class Hydrozoa Huxley 1857 Hydrozoea 



Order Hydroida Leuckart 1857 Hydroida 



Order Trachylina Haeckel 1877 Trachylida 



Order Milleporina Hickson 1899 Milleportda 



Order Stylasterina Hickson 1899 Stylasterida 



[7] 



