Table of Contents . 7 
PAGE 
Sub-Order — U ropygi ...... 87 
Tribe — U rotricha ...... 87 
„ Tartarides . . . . . 89 
Sub-Order — A mblypygi ..... 89 
Order — P alpigradi ....... 90 
,, Araneae ....... 91 
Sub-Order — M esothelae ..... 93 
,, Opisthothelae ..... 94 
Tribe — M ygalomorphae ..... 94 
,, Arachnomorphae ..... 96 
Order — S olifugae . . . . .102 
,, Pseudoscorpiones ..... 104 
Sub-Order — P anctenodactyli .... 106 
,, Hemictenodactyli .... 106 
Order — P odogona ....... 106 
,, Opiliones ....... 107 
Sub-Order— L aniatores ..... 107 
,, Palpatores ..... 108 
,, Anepignathi ..... 108 
Order — A cari ....... 109 
Sub-Order — N otostigmata ..... 109 
,, Cryptostigmata. . . . .110 
,, Metastigmata . . . .110 
„ Prostigmata . . . . .111 
,, Astigmata . . . . .118 
„ Vermiformia ..... 114 
,, Tetrapoda . . . . .114 
Sub-Class'— PYCNOGONIDA (PANTOPODA) ... 115 
(Appendix to Aracknida) Pentastomida . . . .117 
Class 4.— ONYCHOPHORA . . . 118 
Class 5.— DIPLOPODA . . . 120 
Sub-Class— PSELAPHOGNATHA 120 
„ CHILOGNATHA .121 
Order — O niscomorpha ..... 121 
,, Limacomorpha ...... 122 
,, Helminthomorpha .... 122 
Sub-Order — L ysiopetaloidea .... 122 
,, COLOBOGNATHA . . . . .122 
,, Chordeumoidea .... 122 
,, IlJLOIDEA ...... 123 
,, POLYDESMOIDEA ..... 123 
