318 



ISLAND LIFE 



PART II 



studied. This is the case even with the Coleoptera, which 

 apparently amount to about 1,000 species, and are as 

 usual the most important order : the study of the Carabidse 

 and some other families is not yet completed, but the 



Land and Freshwater Shells of the Sandwich Islands. 



Families. 



Number 



of 

 Genera. 



Species. 



Species 

 kii own 

 elsewliere. 





1. 



LiniacidsB. 



2 



7 



2 



All the slugs 













closely allied to for- 













eign species. Per- 













haps all introduced 













by maa, and modi- 













fied. 



2. 





7 



25 



0 



One genus, God- 













winia, peculiar. 



3. 



Philomycidfe .. . 



1 



2 



2 



4. 



Endodontida3 



2 



24 



0 



One genus, Ptero- 













discus, peculiar. 



5. 





2 



2 



1 



One widespread, 













(?) introduced. One 













doubtful. 



6. 



Piipidffi 



1 



10 



1 





7. 



Achatinellid^ .. 



9 



332 



0 



A peculiar family! 



8. 



Tornatellinidge .... 



i 





1 

 i 



One species in 













Tonga Island. 



9. 





2 



4 



2 



Both perhaps in- 













troduced. 



10. 



Succineid;© 



1 



27 



0 





11. 





3 



13 



0 





12. 



Melaniidae 



1 



6 



0 





13. 



Paludestrinidse . . . 



1 



1 



0 





14. 





1 



5 



0 





15. 



Neritidse 



1 



5 



0 





Totals 



35 



477 



9 



Five of these per- 

 haps introduced. 



following numbers are approximately correct. About 900 

 of the 1,000 species are apparently peculiar to the islands. 

 About 200 are Carabidse, 60 Staphylinida?, 60 Nitidulidse, 

 100 Ptinid8e,42 Ciodidse, 137 Aglycyderidse (orProterhinids^ 



