64 . LEPTACHATINA, GROUP N. 



slight fold; aperture subpyrif orm ; peristome simple; with 

 dextral margin unreflected, thin, lightly arcuate; columellar 

 margin reflected, parietal margin wanting. Length 7.6, diam- 

 3.5, length of body whorl 4.3 mm." (Gulick.) 



Oa.hu: Palolo (Gulick). 



Achatinella octogyrata GULICK, Ann. Lye. N. Y., vi, 1856, 

 p. 190, pi. 6, fig. 18. Achatinella obclavata NEWCOMB, Ann. 

 Lye. N. Y., vi, 1858, p. 322. PFR., Mon. Hel. Viv., vi, 186. 

 Leptachatina octogyrata SY-KES, P. Malac. Soc. London, iii, 

 1899, pi. 14, fig. 7 ; Fauna Haw., ii, 1900, p. 366. 



This species is somewhat related to specimens of L. petila 

 Gul., or at least to specimens which are referable to this 

 species. L. octogyrata is slightly more solid, more finely and 

 closely costate, the spire is more regularly turrited and the 

 whorls are flatter and more closely coiled. The embryonic 

 whorls are pale; in two of the three specimens which I have 

 examined they appear to be perfectly smooth; in the third 

 specimen there is an indication of minute striag. Unfortunately 

 I have not been able to examine any young specimens of this 

 species; the striae of the embryonic whorls are deciduous. 

 Figured from a cotype. 



83. L. SCULPTA (Pfeiffer). PI. 4, figs. 73, 74, 75. 



"Shell conically oblong, solid, sculptured with strong, sub- 

 arcuate, longitudinal folds; straw color; spire regularly at- 

 tenuate, obtuse ; whorls 8, somewhat flat, the last a little more 

 than % of the length, somewhat ascending in front; aperture 

 subvertical, sinuately oval; columella slightly arcuate, ob- 

 liquely truncate; lip simple, erect, dextral margin slightly 

 arching forward, columellar margin slightly callous. Length 

 8.5, diam. 3.5 mm." (P/r.) 



Oahu: "Waialua (Lyman) ; Haleauau in the Waianae Mts. 

 (Cooke). 



Achatina sculpta PFR., P. Z. S., 1855, p. 21; PFR., Mon. 

 Hel. Viv. iv, p. 609. Leptachatina sculpta PSE., P. Z. S., 1869, 

 p. 650. 



My specimens, though slightly smaller, agree almost per- 

 fectly with the type in the British Museum. The species 



