NO. I ACHATINELLA APEXFULVA DIXON — WELCH 121 



Area 57 : Kipapa-Waikakalaua Ridge, locality 252-1-2 ?, approxi- 

 mate elevation 1,500-1,600 feet, 4 dextral; 253, elevation 1,650 feet, 

 I dextral; 254, elevation 1,800-1,850 feet, 7 dextral; 255, elevation 

 1,800-1,850 feet, 2 dextral, all Meinecke-collected, 1933. In 1932 

 Meinecke, BBM 121935-121936, collected a series of 49 shells of 

 this variety, which probably came from locality 252-1-2?. Another 

 lot, BBM 121937-121938, collected by Meinecke in 1932 probably 

 comes from locality 253?. Most of the collecting below locality 253? 

 on this ridge is not very reliable and should be carefully checked 

 (figs. 5, 5a, p. 105). 



Although the usual form and color pattern of plate 2, figure 18, and 

 the peculiar color patterns (pi. 8, figs. 7, ya) of area 57, are very 

 distinct, other patterns (pi. 8, fig. yb) occur which are so similar 

 to some of the color patterns (pi. 8, figs, i, 2) of area 70 that mixed 

 lots would be hard to separate with 100 percent accuracy. Usually 

 the shells from area 57 are smaller than shells from area 70, and as 

 long as the characteristic patterns of the region are present they are 

 easy enough to separate. The Meinecke lots from 251-1-2? form the 

 largest series available for study from area 57, and the following 

 discussion will be based on it. 



The usual form and color pattern of the shell (pi. 2, fig. 18) on 67 

 percent of the shells has the embryonic whorls white, banded on the 

 lower half of the whorl with cream buff ; postembryonic whorls white, 

 last two whorls spirally lined with warm sepia ; lip and columella callus 

 light vinaceous fawn; impressed sutural band natal brown lightening 

 to wood brown on the last half whorl. Length 17.1 mm., greater 

 diameter 11.7 mm., spire height 9.2 mm. The spiral lines on the last 

 whorl may be broken and the spire elongate in form (pi. 8, fig. 7) ; 

 postembryonic whorls white, last whorl lined with snuflF brown, the 

 lines broken by axial streaks of white; impressed sutural band snuff 

 brown. Length 17.0 mm., greater diameter 11.5 mm., spire height 

 9.2 mm. An obese shell (pi. 8, fig. ya) has the embryonic whorls 

 white with a single peripheral band of saccardo's umber axially 

 streaked with white, last half whorl faintly lined with snuff brown. 

 Length 16.4 mm., greater diameter 12.5 mm., spire height 8.2 mm. 



The usual form of a sinistral and an example of the dark lined 

 form of the shell is shown on plate 8, figure yh, postembryonic whorls 

 white spirally lined on the last whorl and a half with bone brown 

 and natal brown. Length 16.6 mm., greater diameter 11.7 mm., spire 

 height 8.8 mm. This pattern may be darker and resemble plate 8, 

 figure 2, a shell pattern from area 70. Twenty-five percent have a 

 white spire and a basal band similar to typical A. a. ewaensis (pi. 2, 



