186 



ACHATINELLA PH^EOZONA. 



into bands by white spiral lines and zones, and often with 

 darker bands also. This is a plumata pattern. Albino shells are 

 also found. Specimens of Gulick 's Keawaawa lot measure: 



Length 20.5, diam. 12 mm., 6% whorls. 



Length 23.2, diam. 13 mm. 



Length 22.5, diam. 14 mm. 



Gulick 's collection was no doubt from rather low, where 

 the forest was already almost gone in his time. Higher up, 

 in the bottom of the ravine next to the head of Kuliouou, 

 Mr. Spalding found living shells on dead kukui trees, in some 

 abundance, in 1908 to 1910. Some of these are figured, pi. 

 43, figs. 1 to Id. The white, the two-banded, the split-banded 

 and the streaked patterns are about equally prevalent. The 

 white shells are more or less tinted behind the lip, and around 

 the root of the columellar fold. Banded shells often have the 

 fold wholly white. 



Length 25.2, diam. 13.2 mm., 7*4 whorls. 



Length 24, diam. 13.5 mm., 7 whorls. 



Length 20.6, diam. 12 mm., 6% whorls. 



Length 18.8, diam. 12.4 mm., 6 whorls. 



Northward, across the range, A. phceozona is probably now 

 extinct. About sixty years ago Gulick found it in small num- 

 bers in Waimanalo (similar to pi. 36, fig. 10a), in Kailua and 

 on Olomana. The Kailua specimens (no. 589 Boston Soc., pi. 

 36, figs. 9, 9a), are rather small, length 20 to 21 mm., and 

 mainly slender ; but others of the same lot are typical in con- 

 tour, similar to fig. 10a. Of the specimens from the Koolau- 

 poko side Gulick writes: "Smaller, with outlines of spire 

 less convex; passing into A. plumata. Average weight 5.3 

 grains. Habitat: vars. i-k in Kailua; vars. l-o in Olomana. 

 Var. i. white with numerous chestnut bands on the lower 

 part of the whorls. Var. j. Light olive brown with dark 

 bands. Var. k. Dark brown with narrow white bands. ' ' 



Olomana is a shapely and elegant peak terminating the 

 butress thrown out between Kailua and Waimanalo. Here 

 Mr. Gulick found a few phaozona, for the greater part small 

 and slender, with bands or lines of carob brown below the 

 periphery, or sometimes above also (pi. 48, figs. 19, 20, Boston 



