ZOOLOGISCHES IJTSTITUT 

 NATURtflSSMSCHATTLICHE FAKULTAT 

 HOKXAIDO XAISERLICEE UITIVSRSITAT 

 Sapporo, Japan 

 ITunber of Species in vhich the Chronosone Kumber has been recorded 



INVERTE3RATA 2^54 spp. 



Husber of species 



ITurnber of species 



Mesozoa 



Porifera 



Coelenterata 



Plathelminthes 



Nemertinl 



Tro chelminthes 



Annelida 



Mollusca 



Nenathelmi nthe s 



Molluscoidea 



Bchinodermata 



Arthropoda 



Crustacea 



Acerata 



Insecta 



001161111)0 la 



Thysanura 



Orthoptera 



Dermaptera 



Plecoptera 



Isoptera 



Embioptera 



Psocoptera 



Mallophaga 



Anoplura 



Ephemeroptera 



Odonata 



3 



7 



23 



110 



7 



k 



72 



135 

 72 



7 



2165 



156 



158 



1820 



3 



3 



428 



9 



16 



U 



2 



1 



2 



6 



2 



62 



Prochordata 



VERTEBRATA 



Cyclostomata 



Fisces 



Amphibia 



Reptilia 



Aves 



I 'animal ia 



563 spp. 



2 

 95 



108 

 99 

 33 



176 



(xiii) 



