100 AURICULELLA, OAHU. 



westerlundiana Ancey. It differs from the first, which comes 

 from a different part of Oahu, by the smaller size, the larger 

 number of whorls, its color, etc. It differs, likewise, from the 

 second by its color, the larger number of whorls, especially 

 by the shell being more slender, glossy, and other characters 

 which a comparison of the descriptions sufficiently shows. A. 

 obcliscus of Pfeiffer is closely related to tenella they agree in 

 the number of whorls, columella, and proportions; it differs 

 in color, in its sharp apex, its simple suture, etc.'' (Ancey). 



This is a rather rare species and one that is not found in 

 many collections. I have collected a few specimens at Pale- 

 hua, near the southeastern end of the Waianae Mts., and an- 

 other small series back of Leilehua, at about the middle of 

 the range ; these two series agree very closely and present only 

 very slight differences. It is abundant on the western ridge 

 of Popouwela. I have only three color-varieties of this species 

 in addition to the typical pattern (fig. 7) ; the first uniformly 

 corneous; the second corneous with broad light chestnut 

 streaks; the third a slightly darker shade of chestnut, with a 

 narrow dark chestnut band at the periphery extending on the 

 spire, and almost covered by the suture. Fig. 8 represents a 

 whitish corneous specimen with cinnamon streaks and a chest- 

 nut brown band. It measures, length 6.5, oblique diarn. 3 

 mm. 



There is a rather small circular umbilicus, decidedly larger 

 than in A. tantalus. 



21. A. KUESTERI (Pfeiffer). Not figured. 



Shell subperforate, ovate-turrite, rather solid, very lightly 

 striate, subopaque, pale green. Spire regularly long-conic, 

 the apex rather obtuse ; suture linear, margined. Whorls 6, 

 nearly flat, the last slightly exceeding two-fifths the total 

 length, rounded at base. Aperture oblique, semioval, with a 

 compressed, oblique deeply-entering parietal lamella; colu- 

 mella acutely toothed ; peristome simple, acute, the columellar 

 margin reflexed. Length 8, diam. 4; aperture 3.33 mm. (Pfr.) 



Habitat unknown ; described from the Cuming collection. 



