Reiche Chelicerata
Heymons, (C.B.)
............. Protochelicerata m. nomen
nudum
I.classis Merostomata
(Dana) Woodw.
1.subclassis Gigantostraca Haeckel
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1.ordo Haplochelata
m. (:465)
Eurypteridae
Eurypterus
2.subclassis Xiphosura Latr.
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2.ordo Polychelata
m. (:465)
Hemiaspidae
Hemiaspis
Limulidae
Limulus
.............. Protarachnida
m. nomen
nudum
II.classis Arachnida
1.subclassis Cteidophora m.
= Ctenophora Pocock
(non Ctenophora Blackw.) (:465)
3.ordo Scorpiones
Hemprich & Ehrenberg Scorpio
2.subclassis Lipoctena Pocock
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A.Caulogastra Pocock
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a.Megoperculata m.
(:466)
4.ordo Pedipalpi
Latr. 
Palpigradi 
Schizonotidae Schizonotus
Thelyphonidae Thelyphonus
Amblypygi 
5.ordo Araneae
Sund. Araneus
b.Cryptoperculata m.
(:466)
6.ordo Meridogastra
Thor. = Cryptostemma
Guér.
B.Holotracheata m.
(:466)
a.Holosomata Pocock
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7.ordo Chelonethi
Thor. 
8.ordo Opiliones
Sund. 
9.ordo Acarina
Nitzch. Acarus
b.Mycetophora Pocock
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10. ordo Solifugae
Sund.
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