242 ACHATINELLA PAPYRACEA. 



Oahu: Kalaikoa, Wahiawa [type loc.], and Helemano, on 

 ahakea. (Gulick). 



Achatinella juncea GUL., Annals of the Lyceum of Nat. 

 Hist, of N. Y. vi, p. 230, pi. 7, f. 49. December, 1856. 



A. juncea is a thinner, narrower, more lengthened shell than 

 A. casta, with the columellar fold usually weaker. It is 

 narrower than papyracea, with different color-patterns. From 

 what I have seen it appears to be distinct from related species. 



The specimen figured by Gulick and marked l ' type ' ' by him 

 (pi. 42, fig. 12) is from Wahiawa. Except for a yellow tint 

 at the edge of the lip it is a pure white shell. Others in his 

 collection have two cinnamon bands, one above, narrower, the 

 other wider and below the periphery (fig. 11) ; or the upper 

 band may be split, and a dark area surround the columella, 

 the whole base having a faint brown tint. Mr. Spalding 

 found substantially the same forms in Kipapa, Wahiawa ; 

 (a) white, (&) white with bands (of which there may be 

 four, sutural, two wider median, and columellar), the lip 

 edged with vinaceous brown, columellar fold deep vinaceous, 

 and (c) streaked with cinnamon on a warm buff ground, fad- 

 ing to white above (pi. 42, figs. 13). The length varies from 

 13.5 to 17 mm. There is a similar lot in coll. C. M. Cooke, 

 including some quite broad forms, length 13.7, diam. 8 mm. 

 (pi. 42, fig. 14). 



Specimens from Helemano are similar to white ones from 

 Wahiawa. I have not seen specimens from Kalaikoa. 



At Nichol's camp, Kaukinehua (in the Wahiawa district) 

 Mr. Spalding collected a series of six, 3 streaked and band- 

 less, the others with three bands, of lighter tint than in the 

 Wahiawa lot described above. 



SERIES OF A. PAPYRACEA. 



This group consists of thin, rather capacious shells of the 

 interior valleys, related to casta and its allies. A few species 

 from the Waianae range are about equally related to this 

 group and the next. The species seems not to extend so high 

 as other forms, and none has ever been found on the northern 

 side of the main range. While some forms have plumbeous 



