TORNATELLARIA. 



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living trees within a foot or two of the ground. They appear 

 to be partial to rather damp stations. 



The greatest differentiation of the genus has taken place 

 on Maui. The three most dissimilar species, anceyana, ab- 

 breviata and baldwinana, are found on this island. Tornatel- 

 laria is extremely rare on the island of Kauai. The only 

 species so far reported from there is T. newcombi, a common 

 Oahuan form. We suspect that it is a recent introduction, 

 and that Kauai was without representatives of Tornatellaria, 

 as it was without Auriculella or Achatinella. The distribution 

 of the group strongly suggests that the Laiiai-Molokai-Maui 

 region was its center of dispersal. 



Several of the Lanai-Molokai-Maui species are common to 

 two or three of these islands, and the Hawaiian species are 

 very closely related to them. The Oahuan species are all dif- 

 ferent from those of the eastern islands. 



Distribution of Tornatellaria. 



