Order Gnathul)(iellicla X'aillant 1890 Gnathobdellida 



Order Pharyngobdellida Johansson 1913 



Class Echiurida Savigny 1817 Ecliiurea 



Phylum Gephyrca Quatrefages 1866 Gcphyra 



Class Priapulida Savigny 1817 Priapulidea 



Class Sipunculoidea Quatrefages 1866 Sipunculidea 



Phylum Onychophora Grube 1851 Onychophora 



Phylum Arthropoda Siebold and Stannius 1845 Arthropoda 



Subphylum *Trilobita Schlotheim 1820 *TriIobita 



Class *Hypoparia Beecher 1897 *Hypoparea 



Class *Opisthoparia Beecher 1897 *Opisth()parea 



Class *Proparia Beecher 1897 * Pruparea 



Subphylum Chelicerata Chelicerata 



Class Merostomata Woodward 1878 Merostomatea 



Order *Eurypterida Burmeister 1843 *Eurypterida 



Order *Synxiphosura Packard 1885 *Synxiphosurida 



Order Xiphosura Latreille 1806 Xiphosurida 



Class Pycnogonida Latreille 1804 Pycnogonidea 



Order Colosscndeomorpha Cole 1905 Colossendeomorphida 



Order Nymphonomorpha Pocock 1904 Nymphonomorphida 



Order Ascorhynchomorpha Pocock 1904 Ascorhynchomorphida 



Order Pycnogonomorpha Pocock 1904 Pycnogonomorphida 



Class Arachnida Lamarck 1815 Arachnidea 



Order Scorpionida Latreille 1810 Scorpionida 



Order Palpigrada Thorell 1888 Palpigradida 



Order Pedipalpi Latreille 1806 Pedipalpida 



Suborder Uropygi Thorell 1882 Uropygina 



Suborder Amblypygi Thorell 1883 Amblypigina 



Order Solpugida Sundevall 1833 Solpugida 



Order *Anthracomarti Karsch & Scudder *Anthracomartida 



Order Phalangida Latreille 1802 Phalangida 



Suborder Cyphophthalmi Simon 1879 Cyphophthalmina 



Suborder Laniatores Thorell 1876 Laniatorina 



Suborder Palpatores Thorell 1876 Palpatorina 



Order Chelonethida Duges 1834 Chelonethida 



Order Acarina Nitzsch 1818 Acarinida 



Suborder Notostigmata With Notostigmina 



Suborder Eupodoidea Banks 1894 Eupodina 



Suborder Trombidoidea Banks 1894 Trombidina 



Suborder Hydrachnoidea Banks 1894 Hydrachnina 



Suborder Ixodoidea Leach 1815 Lxodina 



Suborder Parasitoidea Banks 1915 Parasitina 



Suborder Holothyroidea Reuter Holothyrodina 



Suborder Oribatoidea Banks 1894 Oribatina 



Suborder Sarcoptoidea Banks 1915 Sarcoptina 



Suborder Demodicoidea Banks 1894 Demodicina 



Suborder Linguatulida Thorell 1876 Linguatulina 



Order Ricinulida Latreille 1802 Ricinulida 



Order Araneida Lamarck 1818 Araneida 



Suborder Liphistiomorphae Liphistiomorphina 



Suborder Mygalomorphae Banks 1905 Mygalomorphina 



[13] 



