S YSTEMA TIC INDEX. 



Arachnida — continued. 

 Order III. — Pseudoscorpionidea. 



Book-scorpions ... 

 Orderly.— Pedipalpi. 



False Scorpions . . , 

 Order V.— Phalangiida. 



Harvest-men, Etc. 

 Order VI. — Aianeida. 



Spiders 



Page 



541 

 541 

 541 



542 



Order VII. — Acarina. 



Mites and Ticks .. 

 Order VIII. — Tardigrada. 



Moss Mites, Etc. 

 Order IX. — Linguatulida. 



Wovm-like Parasites 



Order Chilopoda. 

 Centipedes 



Order Pt-ripatidse 



CLASS III.— MYRIOPODA. 



CENTIPEDES AND MILLEPEDES. 



I Order Chilognalha. 

 548 I Millepedes 



CLASS IV.— PROTRACIIEATA. 



... 550 I Peripatus lulifonnis 



Classification of Insects 

 Order Coleoptera. 



Beetles 



Order Orthoptera. 



Crickets, Locusts, Etc 



Order Neuroptera. 



Lace-winged Insects 

 Order Trichoptera. 



Caddis Flies, Etc. 

 Order Hynienoptera. 



Bees, Wa^ps Ants, Etc. 



Page 



545 

 547 

 548 



549 



551 



SUB-KINGDOM III.— MOLLUSC A. 



WHELKS, OYSTERS, SNAILS, 6-v. 

 CLASS L— AMPHINEURA. 



Characteristics of MoUusca ... 610 



Classification of Mollusca ... 615 



Order I. — Polyplacophora. 



Chitons, Etc 615 



Order 11. — Aplacophora. 



(Worm-like Mollusca) 616 



Sub-order i. — Neomeniina. 



Nenmeiiians ... ... _ 555 



Sub-order ii. — Chcetodermatina. 



