SYSTEMATIC INDEX. 



ARACHNIDA continued. 

 Order III. Pseudoscorpionidea. 



Book-scorpions 



Order IV. Pedipalpi. 



False Scorpions ... 

 Order V. Phalangiida. 



Harvest-men, Etc. 

 Order VI. Araneida. 



Spiders ... 



Page 



541 



54i 



542 



Order VII. Acarina. 



Mites and Ticks .. 

 Order VIII. Tardigrada. 



Moss Mites, Etc. 

 Order IX. Linguatulida. 



Worm-like Parasites 



CLASS III. MYRIOPODA. 

 CENTIPEDES AND MILLEPEDES. 



Order Chilopoda. 

 Centipedes 



548 



Order Chilognatha. 

 Millepedes 



CLASS IV. PROTRACIIEATA. 

 Order Pcripatidse 550 | Peripatus luliformis 



Page 



545 

 547 

 548 



549 



581 



594 

 595 

 598 

 602 

 602 



SUB-KINGDOM III. MOLLUSCA. 



WHELKS, OYSTERS, SNAILS, &c. 

 CLASS I. AMPHINEURA. 



Characteristics of Mollusca ... 610 



Classification of Mollusca ... 615 



Order I. Polyplacophora. 



Chitons, Etc 615 



Order II. Aplacophora. 



(Worm -like Mollusca) 616 



Sub-order i. Neomeniina. 



Neomenians ... ... ... 616 



Sub-order ii. Choetodermatina. 



