NO. I ACHATINELLA APEXFULVA DIXON WELCH I79 



ACHATINELLA APEXFULVA DUPLOCINCTA Pilsbry and Cooke 



Plate 3, Ficure 26 ; Plate 12, Figures 27, 28 



AchatineUa apcxfulva color form duplocincta Pilsbry and Cooke, Man. Conch., 

 vol. 22, p. 323, pi. 55, figs. 6-8, 1914. 



To quote from Pilsbry and Cooke : 



The shell is dextral, white, encircled with two chestnut bands or group of 

 lines, one at the periphery, the other below it; lip faintly violaceous. Length 18, 

 diam. 11 mm. Length 17, diam. 11.7 mm. 



The cotypes of this form are 1272, 1273 Cooke coll., 108776 A. N. S., and 1213 

 Gulick coll., Boston Soc. The former lots are labelled "Wahiawa, Emerson, 

 extinct?", three banded specimens, one drawn in fig. 8, and two in which the 

 bands are very faint, a little stronger near the lip. The locality seems open to 

 doubt. The Gulick lot is from "Kawailoa, east side." 



Distribution, area 97A ? ? : Type locality Kawailoa, Waialua, "on 

 a group of 3 or 4 trees at the head of a little gulch beside and to the 

 north of the road to Kamoku, some two miles makai [toward the sea] 

 of Kamoku, collected by J. S. Emerson previous to the year 1863." 

 (J. S. Emerson label, BBM 1023 12.) The original label on the O. P. 

 Emerson shells in the Museum of Comparative Zoology reads : 

 "Picked before 1861 in a secondary ravine branching S. from the 

 Kamoku reservoir valley below the narrows which is now a grassy 

 hollow. An old Akakea tree [Bohca sp. ?] bore the shells — all now 

 extinct — and not found elsewhere by me." The shell of Pilsbry and 

 Cooke's plate 55, figure 8, here reproduced on plate 12, figure 27, 

 is selected for the lectotype. The label Wahiawa on the Cooke type 

 lot is surely erroneous, because the shells came from J. S. Emerson 

 who obtained his specimens from Kawailoa. From the above data of 

 the Emerson brothers, A. a. duplocincta was a lowland race that 

 occurred below the colony of A. a. apexfiilva, which probably occurred 

 in Opaeula Gulch area 97 and was somewhere along the road on the 

 top of the Opaeula- Kawailoa Ridge. Area 97A?? is the probable 

 region of the type locality (fig. 7, p. 194). 



The usual form and color pattern in the type lot in the J. S. Emer- 

 son collection (pi. 3, fig. 26) is a white shell, with a single line of 

 cinnamon above the periphery on the last whorl, and four lines of 

 mikado brown below the periphery; lip and columella callus light 

 pinkish cinnamon. Length 17.9 mm., greater diameter 11.8 mm., 

 spire height lo.o mm., number of whorls 6|-. 



A narrow specimen and darkest color form (pi. 12, fig, 28) is 

 a white shell banded just above the periphery on the last two whorls 

 with two bands of mikado brown, above which on the last whorl and 



