MOLLUSC A 331 



(8) Perdicella zebrina Pfeiffer. 



Newconibia zebrma Pfeiffer, P. Zool. Soc. London, 1855 [1856], p. 202. 

 Hab. E. Maui (Baldwin as P. zebra Newc). 



Newcombia Pfeiffer. 



Newcombia Pfeiffer, Malak. Blatt. i. 1854, p. 117; Pease, P. Zool. Soc. London, 

 1869, p. 649. 



Pfeiffer's list of species was very heterogeneous and included shells of diverse 

 groups, his first species being A. hclena Newcomb ; fortunately Pease in 1869 properly 

 confined the group to the shells it is now used for. 



Two sections may be formed: L Spirally lirate ; N. lirata, etc. IL Nearly 

 smooth, usually more elongate ; N. cumingi, etc. 



(i) Newcombia canaliculata Baldwin. 



Achatinella [Newcombia) canaliculata Baldwin, P. Ac. Philad. 1895, p. 226, pi. x. 



figs. 28, 29 ; Gwatkin, t. c. p. 238 [radula]. 

 Hab. Molokai, Halawa (Baldwin). 



(2) Neivcombia ciniiamoniea Pfeiffer. 



Achatinella cinnavwmea Pfeiffer, Malak. Blatt. iv. 1857, p. 230. 



Achatinella {^Newcombia) cinnamomea Pfeiffer, P. Zool. Soc. London, 1858, p. 22. 



Newcombia cinnamomea Pfeiffer, Gwatkin, P. Ac. Philad. 1895, p. 238 [radula]. 



Conchologically this is very close to N . cumingi Newc. 



Hab. Molokai, Mapulehu (Baldwin) ; Makakupaia and the mountains (Perkins). 



(3) Neivcombia cumingi Newcomb. 



Achatinella cumingi Newcomb, Ann. Lye. New York, vi. 1853, p. 25; P. Zool. 



Soc. London, 1853 [1854], pi. xxiv. fig. 59. 

 Hab. Maui, Haleakala (Newcomb) ; Lahaina and Makawao (Baldwin). 



(4) Newcombia ge7nma Pfeiffer. 



Achatinella gemma Pfeiffer, Malak. Blatt. iv. 1857, p. 323. 



Achatinella {Newcombia) gemtna Pfeiffer, P. Zool. Soc. London, 1858, p. 22. 



Akin to N. lirata Pfr., but the sculpture is almost obsolete. 



Hab. Molokai Mts. (Perkins). 



