SCHEME OF CLASSIFICATION 



TRILOBITA (p. 221). 



Acjnostidae (p. 244). 

 Shumardiidae (p. 245). 

 Trimicleidae (p. 245). 

 Harpedidae (p. 245). 

 Paradoxidaa (p. 246). 

 Conoccphalidae 



= Conocoryphidae (p. 247) 

 Oleiiidae (p. 247). 

 Calymenidae (p. 247). 

 Asaphulae (p. 249). 

 Bronteidae (p. 249). 

 Phaoopidae, (p. 249). 

 Cheiniridae (p. 250). 

 Proetidae (p. 251). 

 EncHiiuridae (p. 251). 

 Acidaspidae (p. 251). 

 Lichadidae (p. 252j. 



AEACHNIDA (p. 255). 



DELOBEANCHIATA=MEEOSTOMATA (pp. 258, 259). 

 Orders. Families. Sub-Families. 



^""^258. 25, 276) jxiphosundae (p. 276) { ^^^X"^. 



Eurypterida = Gigantostraca 

 (pp. 258, 283) 



Xiphosuridae (p. 276) 

 i Eury2}teridae (p. 290). 



EMBOLOBRANCHIATA (pp. 258, 297). 



Buthinae (p. 306). 



Scorpionidea 



(pp. 258, 



297) 



Pedipalpi (pp. 258, 308) 



Araneae (pp. 258, 314) 



(Continued on the next fage.) 



Buthidae (p. 306) 



Scorpionidae (p. 306) 



Chaerilidae (p. 307). 



Cliactidae (p. 307) 



Vejovidae (p. 308). 

 , Bothviuridae (p. 308). 

 Thelyjihonidae (p. 312). 

 Schizonotidae = Tartaridae 

 (p. 312). 



Tarantulidae = Phrynidae 



(p. 312) 

 Liphistiidae (p. 386). 



\ Centrurinae (p. 306). 



(Diplocentrinae (p. 307). 

 Urodacinae (p. 307). 

 Scorpioninae (p. 307). 

 Heniiscorpioninae (p. 307). 

 Ischnurinae (p. 307). 



{ Aviculariidae : 

 (p. 386) 



= Mygalidae 



Megacorminae ([). 308). 

 Euscorpiinae (p. 308). 

 Chactinae (p. 308) 



f Tarantulinae (p. 313). 

 ■! Phrynioliinae (p. 313). 

 I Charontinae (p. 313). 



•Paratropidiuae (p. 387). 



Actinopodinae (p. 387). 



Miginae (p. 387). 



Ctenizinae (p. 388). 



Barychelinae (p. 389). 



Aviculariinae (p. 389). 

 V Dipluvinae (p. 390). 



