MOLLUSC A 329 



(107) Achatinella {^Achatinellastrttni) zonula Gulick. 



Achatinella zonata Gulick, Ann. Lye. New York, vi. p. 237, pi. viii. fig. 58. 

 AcJiatinella glauca Gulick, t. c. p. 232, pi. viii. fig. 51. 



United by Newcomb with A. trilineata Gulick ; it appears however to have 

 much flatter whorls, and I follow Mr Baldwin, with some little doubt, in restoring it to 

 specific rank. According to Newcomb, A. glauca is a synonym of A. livida Swain., 

 but specimens in the Brit. Mus. "named from Gulick's type" as a variety, lead me to 

 place it here. 



Hab. Oahu, Waimea, Pupukea, Waialei, Kahuku, Hauula, and Kaawa (Gulick); 

 above Ewa (Perkins). 



The following appears to be only a manuscript name : 



Achalinellaslruui olesonii Baldwin, Cat. Shells Hawaiian Islands, 1893, p. 5. 



Hab. Oahu, Nuuanu. 



Perdicella Pease. 



Perdicclla Pease, P. Zool. Soc. London, 1869, p. 649. 



Pease, unfortunately, having named no type, it becomes necessary to select one 

 and I propose to take A. Iielena Newc. The species come from Maui and Molokai. 



(i) Perdicella ftilguraiis, sp. nov. 



Testa subperforata, de.xtrorsa, ovato-turrita, nitida, sub lente lineis spiralibus 

 confertim sculpta, albida, strigis fulgurantibus castaneis elegantissime picta, sutura 

 modice impressa, apice obtusulo ; anir. 5-|, plano-convexi, ultimis | longitudinis testae 

 aequans ; apertura ovato-pyriformis, intus lilacina ; peristoma margine dextro simplici, 

 columellari subreflexo ; plica columellaris torta, subprominens, mediocris, rapide 

 ascendens. Long. 16 ; lat. 8 ; long, apert. 8'i ; lat. apert. 4-9 mill. (Plate XL fig. 5.) 



This very pretty shell is akin to P. zebrina Pfr., but may be readily separated 

 from it by its greater size, by being much broader in proportion to the length, and by 

 the colour-pattern being finer in design and more zigzag. The protoconch is brown, 

 then becoming paler with a dark shade near the sutural line. It is the Partiilina 

 zebrina Pfr. of Mr Baldwin's valuable catalogue. 



Hab. E. Maui, Makawao to Huelo (Baldwin); Maui (Hutchison). 



43—2 



