NO. I ACHATINELLA APEXFULVA DIXON — WELCH III 



brown, last whorl and a half white, spirally lined with mouse gray, 

 in the umbilical region a band of pinkish buff; impressed sutural band 

 russet. 1 



ACHATINELLA APEXFULVA TUBERANS var. 3 

 Plate 2, Figure 28; Plate 9, Figures 14-15 



Area "j"] : North-South Kaukonahua Ridge, locality 274, eleva'tion 

 1,600-1,747 feet, Lemke, 1932, Steel, 2 dextral 1934. Also collected 

 by Wilder, BBM 10448, and O. H. Emerson, BBM 1 03971, probably 

 in the region of area yy (figs. 5, 5a, p. 105). 



This form oi A. a. tuberans resembles typical titberaus very closely 

 in color pattern. None of the specimens, however, have on the last 

 whorl the dark bands unbroken by axial streaks that are so char- 

 acteristic of typical tuberans. Area yy is an intermediate one between 

 the subspecific group of A. a. lilacea and A. a. leucorraphe because 

 there is a mixture of both kinds of embryonic whorls in the locality. 

 A usual color pattern (pi. 2, fig. 28) has the embryonic whorls light 

 buff, last embryonic whorl and a half banded on the upper half of 

 the whorl with white ; penultimate and last postembryonic whorl 

 light mouse gray spirally lined and banded with white and axially 

 streaked with dark livid brown and hair brown ; impressed sutural 

 band ochraceous tawny with a line of bone brown on the lower half 

 of the band, on the last whorl the upper half of the band ochraceous 

 tawny and the bone-brown line is in the center of the band, lower half 

 light mouse gray axially streaked with dark livid brown ; below the 

 sutural band is a line of bone brown ; lip and columella callus pale 

 ochraceous fawn. Length 21.2 mm., greater diameter 14.2 mm., spire 

 height 1 1.4 mm. The usual form of the shell is not shown by 

 figure 28. The usual length of the shell is around 19.5 mm., and has 

 a greater diameter of 12.5 or 13.5 mm. 



The color pattern may be much lighter (pi. 9, fig. 14) ; embryonic 

 whorls white ; first two postembryonic whorls pale pinkish cinnamon 

 spirally lined with tilleul buff on the upper half of the penultimate 

 whorl, lower half banded smoke gray axially streaked with pale 

 pinkish cinnamon or white, last whorl light drab darkening to hair 

 brown on the last half whorl, axially streaked with benzo brown, 

 drab, and white and spirally banded and lined with white ; impressed 

 sutural band tilleul buff ; lip not formed ; specimen not quite adult. 



The shells of area yy seem to be an intermediate race between lower 

 punicea var. i and the higher race of irwini. The Lemke lot con- 

 tains shells with unicolored embryonic whorls, but one specimen 



