50 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. IO3 



columella callus pale vinaceous fawn. Length 19.5 mm., greater 

 diameter 13.2 mm., spire height 10.2 mm., number of whorls 6£. 



Distribution, area 1 1 : Nuuanu-Kapalama Ridge, type locality 

 110*, elevation 1,750-1,870 feet, Meinecke, 1921, 1922, 1927, 1929; 

 also locality 11 1*, elevation 1,800-2,100 feet, Meinecke, i sinistral 

 1929 (figs. 3, 2,0, p. 29). 



The color pattern of 11 percent of the shells (pi. 5, fig. 2) is a 

 more heavily lined one ; the last two whorls may be white, lined and 

 banded on the penultimate with mikado brown, on the last whorl 

 banded with vandyke brown and lined with mikado brown, base 

 banded with seal brown, umbilical region tinted with cream bufif. 

 Twenty-four percent are conspicuously banded ; last two whorls white, 

 (pi. 5, fig. 2(7) banded with chocolate and lined on the penultimate 

 with a subsutural band of mikado brown, which splits into two lines 

 on the last half of the penultimate and fades out on the last half of 

 the last whorl. The darkest color pattern and elongate form of the 

 shell (pi. 5, fig. 2b), occurring on 2 percent of the shells, has the last 

 two whorls burnt umber axially streaked with cinnamon and banded 

 on the last whorl with white ; impressed sutural band chocolate shading 

 to cinnamon bufif at the upper edge. Length 19.8 mm., greater di- 

 ameter 12.8 mm., spire height 9.9 mm. This shell resembles the dark 

 color pattern of A. a. cinerea (pi. 5, fig. la). The main difiference is 

 that A. a. cinerea has the embryonic whorls banded with yellow and 

 the first two postembryonic whorls banded with yellow and gray. 

 The obese form and lightest color pattern of the shell (pi. 5, fig. 2c) 

 measures: Length 19.0 mm., greater diameter 13.8 mm., spire height 

 9.4 mm. ; postembryonic whorls white, below the impressed sutural 

 band a line of cinnamon deepening to warm sepia on the last whorl, 

 the base lined and banded with chocolate. This white color pattern 

 occurs on 20 percent of the shells. Eight percent have a yellow color 

 pattern which looks like an intermediate form between rubidipicta 

 and albofasciafa. One of these (pi. 5, fig. 2d) has the last whorl and 

 a half pale pinkish bufif axially streaked and lined with cinnamon, 

 banded with white at the edge of the periphery, below the periphery 

 banded with amber brown, and a basal band of pinkish buff ; impressed 

 sutural band pinkish buff axially streaked with cinnamon. In some 

 collections specimens of A. a. albofasciata are found mixed with lots 

 of A. a. rubidipicta. The reason for this is that the shells were either 

 collected in a locality intermediate between areas 11 and 13 or all 

 the shells from areas 11 and 13 were lumped together in one locality. 



