324 ACHATINELLA APEXFULVA. 



except for a very faint tint on the lip, fig. 6. With, them are 

 two small specimens of vespertina color, agreeing with the du- 

 plocincta in size and shape. It seems likely therefore that 

 duplocincta is a mutation in a colony of small vespertina. If 

 not extinct it may be expected to occur in the vicinity of that 

 race. Whether related to alba I cannot say. 



37 b. A. apexfulva alba Sykes. 



" Shell snow-white, save for the peristome being margined 

 with lilac, similar tinting appearing on the columellar plait 

 and inside the outer lip at its junction with the body-whorl 

 of the shell" (Sykes). 



Near the head of Kawailoa gulch (Perkins). 



Achatinella apicata var. alba SYKES, Fauna Hawaiiensis, p. 

 299, 1900. Not Achatinella alba Nuttall, = lorata. 



This may be a variant of the form I have called A. a. beat a; 

 but if the locality given is correct, it is probably a parallel 

 modification rather than the same form. Kawailoa is properly 

 speaking the gulch of the Anahulu river, west of Opaeula, 

 while the ridge occupied by beata is a considerable distance 

 east of Opaeula. If really from Kawailoa, A. a. alba is at the 

 extreme western border of the apexfulva area. 



37c. A. apexfulva apicata 'Newc.' Pfeiffer. PL 60, figs. 4 to 

 7b. 



1 ' Shell imperf orate, globose-conic, solid, smooth, blackish or 

 brown, irregularly pallidly radiate and subfasciate; spire 

 conic, apex cinnamon or liver colored, rather acute. Whorls 

 6, the upper ones flat, the penultimate convex, last whorl glo- 

 bose, scarcely % the length of the shell. Aperture oblique, 

 subtetragonal-oval. Columellar fold high, tooth-like, lilac 

 colored. Peristome unexpanded, lipped with lilac within, the 

 columellar margin very much dilated, thickened and ad- 

 nate. Length 183/2, diam. 12 mm.; aperture 9 mm. long, 5 

 wide. Habitat: Sandwich Islands (Pfr.). 



Kalaikoa to Opaeula. 



Achatinella apicata Newc., PFR., P. Z. S., 1855, p. 210; 

 Monographia, iv, 542. A. swiftii var. NEWCOMB, Ann. Lye. 



