SCHEME OF CLASSIFICATION 



TRILOBITA (p. 221). 



Families. 



Agnostidae (p. 2-14). 

 Shumardiidae (p. 245). 

 Trinucleidac (p. 245). 

 Harpedidae (p. 245). 

 Paradoxidae (p. 246). 

 Conocephalidae 



Conocoryphida e ( p . 247). 

 Olcniilae (p. 247). 

 Calymenidae (p. 247). 

 Asaphiiltte (p. 249). 

 Bronteidae (p. 249). 

 Phacopidae (p. 249). 

 Cheiruridae (p. 250). 

 Proetidae (p. 251). 

 Encrinuridae (p. 251). 

 Acidaspidae (p. 251). 

 Lichadidue (p. 252;. 



ARACHNID A (p. 255). 



DELOBRANCHIATA = MEROSTOMATA (pp. 258, 259). 

 Orders. 



Families. 



Sul.-Families. 



Xiphosura 



(pp. 258, 259, 276) 



Xiphosuridae (p. 276) 



/ Xiphosurinae (p. 276) . 

 \ Tachypleinae (p. 276). 



Eurypterida = Gigantostraca \ Eurm)tei , idac , D 2 90) 

 (pp. 258, 283) JJSurypte 



EMBOLOBRANCHIATA (pp. 258, 297). 

 Butliidae (p. 306) 



Scorpionidea 



(pp. 258, 297) 



Pedipalpi (pp. 258, 308) 



Araneae (pp. 258, 314) 



( Continued on the next page. ) 



Scorpionidae (p. 306) 



Chaerilidae (p. 307). 

 Chactidae (p. 307) 



Vejovidae (p. 308). 

 Bothviuridae (p. 308). 

 Thelyphonidae (p. 312). 

 Schizonotidae = Tartavidae 



(p. 312). 



Tarantulidae = Phrynidae 

 (p. 312) 



Liphistiidae (p. 386). 



Aviculariidae Mygalidae 

 (p. 386) 



f Butliinae (p. 306). 

 \ Centrurinae (p. 306). 

 ( Diplocentriuae (p. 307 . 



Urodacinae (p. 307). 

 -j Scorpioninae (p. 307). 



Hemiscorpioninae (p. 307). 



Ischnurinae (p. 307). 



( Megacorminae (p. 308). 

 J. Euscorpiinae (p. 308). 

 ( Chactinae (p. 308) 



( Tarantulinae (p. 313). 

 I Phrynichinae (p. 313). 

 ( Charontinae (p. 313). 



f Paratvopidinae (p. 387). 

 Actinopodinae (p. 387). 

 Miginae (p. 387). 



Barychelinae (p. 389). 

 Aviculariinae (p. 389). 

 V Diplurinae (p. 390). 



