296 ACHATINELLA TURGIDA. 



Waiawa. As I have not the specimens by me, I cannot say 

 what relation they may bear to the gray form of Waimaiio. 



According to Mr. W. D. Wilder, the yellow form with black 

 lip (var. ovum} occurs on the same ridge with mottled tur- 

 gida, but higher up. 



34a. A. TURGIDA PERPLEXA n. subsp. PI. 56, figs. 5 to 5/. 



The shell has a white ground indistinctly streaked with pale 

 neutral gray, and encircled with numerous lines and bands of 

 darker gray or olive brown. First embryonic whorl cartridge- 

 buff with the tip either white or a little darkened, bluish or 

 fleshy, the rest of the embryonic whorls white. First neanic 

 whorl often marked with brown. The lip is vinaceous pink or 

 light brownish vinaceous, fading on the rather strong lip-rib. 

 About 6 per cent are sinistral. 



Length 20.7, diam. 13.6 mm., 6% whorls. 



Length 18, diam. 12 mm. 



Lateral spurs (figs. 5-5d), and northern ridge (figs. 5e f /) 

 of Waimano valley, C. M. Cooke. Cotypes 1192 Cooke coll. 

 and 108802 A. N. S. P. 



The grayish color and pale lip are the chief characters of 

 this race, of which there are about 130 specimens in Dr. 

 Cooke 's collection. It varies a good deal. The bluish-gray 

 streaks are often absent, or visible only on the bands, and the 

 latter vary from light to dark. The sutural margin is usually 

 touched faintly or distinctly with tawny. Figs. 5, 5a are 

 typical patterns. 



In some specimens from the northern ridge of Waimano 

 (pi. 56, figs. 5e, 5/) the ground is yellowish or cream color, 

 not streaked, and the bands sharply defined, carob brown or 

 almost black. This pattern connects with the gray form 

 through some intermediate shells with gray bands and yel- 

 lowish ground, and there are also a few shells having gray 

 bands on a white ground, from the northern ridge. 



This race seems to be intermediate between A. turgida and 

 A. swiftii. If found further west, it would inevitably be 

 merged in swiftii, on account of the grayish tone of the bands 

 and the perceptible duskiness of the tip in some specimens. 



