AMASTRA, KAUAI. 141 



(Pusilla Series.} 



A. pusilla Nc. Lanai. A. elegantula H. & P. Molo- 



A. tricincta Pils. Molokai. kai. 



Section HETERAMASTRA Pils. (type A. hutchinsonii}. 



A. elongata Newc. Oahu? A. leeva Bald. Maui. 



A. fraterna Sykes. Lanai. A. perversa Pils. Molokai. 



A. soror Newc. Maui. A. hutchinsonii Pse. Molokai 



A. s. interjecta H. & P. Maui. and Maui. 



A. s. laticeps Pils. Maui. A. farcimen Pfr. Maui. 



A. subsoror Hy. & Pils. Maui. A. sinistrorsa Bald. Hawaii. 



(Sedis incertce.} 



A. amieta Smith. A. peasei Smith. 



A. luteola Fer. A. lineolata Newc. 



AMASTRA OF KAUAI. 



In Kauai forest covers the mountains of the central mass, 

 extending down to about 1,200 feet on the windward (north- 

 east) slope, and 1,500 feet on the leeward slope. Near the 

 coasts shells are very abundant in Pleistocene or later de- 

 posits, some species being known only from these fossil ex- 

 amples. We do not know that central Kauai around Mount 

 Waialeala has been explored. Large additions will probably 

 be made to the Leptachatinae and AmastraB when the island is 

 adequately searched. 



Niihau is said to be practically all grass-land, a single 

 Carelia being found fossil. No doubt further search will re- 

 sult in numerous other land shells on this island, in Pleisto- 

 cene deposits. 



Kauai, while poor in species, possesses some of the most 

 remarkable Amastrincs, such as Carelia, Armiella and Kauaia. 

 All of them have probably descended from ancestral forms of 

 Amastrella and Cyclamastra, which with Leptachatina seem 

 to have constituted the entire primitive Achatinellid fauna 

 of the island. 



