AURICULELLA, MOLOKAI. 105 



Length 7.8, diam. 3.6 mm., with 6y 2 whorls (fig. 4), or length 

 7, oblique diarn. 3.5 mm., with 6y 2 whorls (fig. 6). The 

 parietal callus has a thickened edge, forming a ridge. In this 

 character the shell differs from A. newcombi. It is shorter and 

 relatively broader than Pfeiffer's type of A. cerea. 



It is abundant on the highlands near Waikolu (pi. 26, figs. 

 1, 2, 3), on the northern watershed, where the shells are 

 larger and mainly cinnamon-colored, with or without a dark 

 band. When yellow they are more of a chamois tint. Parietal 

 callus is thickened and prominent. Length 8.3, oblique 

 diam. 3.5 mm., with iy 2 whorls. All seen are sinistral. 



Specimens from Kalihi, Kaunakakai, near the upper end of 

 the pipe-line, vary from chamois through cinnamon (plain or 

 banded) to liver brown; sometimes the last whorl is light, the 

 spire dark vinaceous. Length 7.6, diam. 3.3 mm., with about 

 7 whorls, or smaller, length 6.4, diam. 3 mm., Qy 2 whorls. All 

 are sinistral, and the characteristic parietal callus is strongly 

 developed. 



23. A. BRUNNEA Smith. PI. 26, figs. 10 to 15. 



' ' Shell conically ovate, sinistral, subperforate, glossy, chest- 

 nut ; suture simple, narrowly encircled with white ; whorls 7, 

 very slightly convex, the first two polished ; apex slightly ob- 

 tuse ; aperture brown ; parietal lamina white, thin ; lip slightly 

 dilated, united to the columella with a thin whitish callus;, 

 columella very slightly reflexed, scarcely plicate. Length 8,. 

 diam. 4mm." (Sin.). 



Molokai (Smith) ; Kalamaula (Perkins) ; Kaluaaha, Moa- 

 nui (Thaanum) ; Waiakapuaa (Borcherding). 



Auriculella brunnea SMITH, P. Z. S. Lond., 1873, p. 88, pi. 

 10, fig. 23. PFEIFPER, Mon. Hel. Viv., viii, p. 212. ANCEY,. 

 Bull. Soc. Malac. France, vi, 1889, p. 223. SYKES, Fauna 

 Hawaiiensis, ii, Moll., p. 375. BORCHERDING, Zoologica, part 

 48 2 , p. 140, pi. 9, figs. 19, 19a, 20, 20a. 



There are several color varieties of this species, and one 

 color pattern that seems to be peculiar to it, the spire and last 

 whorl above the periphery of a fawn color, while below the 

 periphery the shell is dark chestnut. 



