NO. I 



ACHATINELLA APEXFULVA DIXON — WELCH 



185 



ACHATINELLA APEXFULVA OIOENSIS var. i 



Plate ii, Figures 23-235 



Distribution, area 112: Pahipahialua Gulch, locality 450, eleva- 

 tion 1,250 feet, Meinecke, 1933 (figs. 6, 6a, below) ; also collected by 

 Wilder, BBM 50612. 



The color patterns of area 112 at first glance seem the same as 

 those of typical oioensis (area 114), but close examination shows that 



Fig. 6. — Northern Oahu, windward slope of the Koolau Range, the northwestern 

 half of region IV (fig. 7, p. 194), showing localities of subspecies of A. apexfulva 

 belonging to the groups of A. a. apexfulva and A. a. aloha. 



Fig, 6a. — Same as fig. 6, but showing the areas of distribution of the subspecies of 

 A. apexfulva belonging to the groups of A. a. apexfulva and A. a. aloha. 



slight variations occur. Usually the yellow ground color is lighter in 

 area 112. A close reproduction of the patterns of plate 3, figure 33, 

 and plate 11, figure 220, is not found in area 114. Plate 11, figure 23, 

 resembles figure 22a, but the characteristic wider sutural band of the 

 yellow patterns of area 112 separates it from the Oio Stream forms 

 of area 114. Moreover, dull brown forms with faint zigzag streaks 

 occur in area 112 and do not occur in area 114. 



The usual color pattern and the obese form of the shell (pi. 11, 

 fig. 23) has the embryonic whorls pale pinkish buff; postembryonic 

 whorls light buff very finely lined and streaked with ochraceous 



