NO. I ACHATINELLA APEXFULVA DIXON WELCH 8/ 



ACHATINELLA APEXFULVA CHROMATACME var. i 



Plate i, Figure 52; Plate 6, Figures 24-24/ 



Achatinella swiftii Newcomb, Pilsbry and Cooke, Man. Conch., vol. 22, p. 315, 

 pi. 59, figs. 4&, 4c (onbO, 1914. (While these two shells are not typically 

 A. a. chromatacme var. i, they are very close to it in color pattern.) 



Area 41 : Manana-Waiawa Ridge, locality 230*, elevation 1,050- 

 1,150 feet, 5 sinistral, 1929; 231*, elevation 1,000-1,100 feet; 230A*, 

 elevation 1,050-1,100 feet, 3 dextral, i sinistral 1929; 231A*, eleva- 

 tion 750-800 feet, 12 dextral 1929; 232A, elevation 550-600 feet, 

 I dextral, 2 sinistral 1933, all Meinecke-collected (figs. 4, 4a, p. 53). 



The shells of area 41 can easily be confused vi^ith the shells of area 

 40 because the embryonic whorls may be white and the color pattern 

 similar to A. a. perplexa. They have been considered a variety of 

 A. a. chromatacme because some of the shells have dark embryonic 

 whorls and the range of color patterns is closer to .^. a. chromatacme 

 than to A. a. perplexa. The form is characterized by most of the 

 patterns being spirally lined with white. 



The usual form (pi. i, fig, 52) has the first embryonic whorl pale 

 pinkish buff, next whorl pinkish buff, last half embryonic whorl 

 pinkish cinnamon with a central line of cinnamon ; first postembryonic 

 whorl pale pinkish buff lined with cinnamon, penultimate whorl benzo 

 brown lined with pale pinkish buff, last whorl hair brown lined with 

 white ; impressed sutural band white, tinted pinkish buff ; lip and 

 columella callus light vinaceous fawn. Length 18.7 mm., greater 

 diameter 12.2 mm., spire height 9.5 mm. The color pattern may be 

 less lined (pi. 6, fig. 24) and look like A. a. chrovnatacme , first 

 embryonic whorl and a half pale pinkish buff shading to tawny on 

 the last embryonic whorl; postembryonic whorls pinkish buff, first 

 postembryonic whorl axially streaked with cinnamon drab, and lined 

 with the ground color, last two whorls lined and streaked with hair 

 brown. 



The dominant color pattern on 25 percent of the shells is a white 

 lined pattern (pi. 6, fig. 24a) ; the postembryonic whorls white, first 

 two faintly lined with mikado brown, last whorl a line of cinnamon 

 above the periphery, at and below the periphery lined with sepia. 

 The bands and lines may be axially streaked with white (pi. 6, 

 fig. 24&) ; the shell is entirely white spirally lined with light drab, below 

 the periphery of the last whorl a band of hair brown. 



Lined brownish forms also occur. The lightest brown pattern 

 (pi. 6, fig. 24c) has the first postembryonic whorl ochraceous tawny, 

 with a central line of pale pinkish buff, on the penultimate and last 



