308 ACHATINELLA SWIPTII. 



any other basis than selected extreme patterns. It will be 

 noted that not less than five of these supposed species were 

 found in two small valleys, Ahonui and Kalaikoa, at the end 

 of the Kaukinehua ridge. The original descriptions are given 

 below in the order of their publication, followed by notes on 

 the types and other specimens. 



Typical form of A. swiftii. The original figures of A. 

 swiftii are reproduced on pi. 29, figs. 9, 9a. Newcomb has 

 stated that ''the type figured in the Zoological Proceedings is 

 not the usual pattern of the shell, but is one of the more un- 

 common varieties.' Neither figure agrees in color with his 

 description. The form described must therefore be consid- 

 ered the type; not those figured. His fig. 9a may be an A. 

 turgida, but fig. 9 is apparently swiftii. 



Two sets, nine specimens, were given by Newcomb to the 

 Academy in 1854. Four of the lot have the white suture men- 

 tioned by Newcomb. Two are sinistral. One of these is fig- 

 ured, pi. 58, fig. 1, no. 10313 A. N. S. These shells agree 

 well with Gulick's series from "Wahiawa, ' except that a 

 white sutural band is very rare in the latter, and the color of 

 the embryo sometimes differs. I consider the Wahiawa region 

 as type locality, though the range of the species in its several 

 patterns lies mainly east of this. Wahiawa shells from the 

 Gulick collection are figured, pi. 58, figs. 2 to 2c. The em- 

 bryonic whorls are not drawn out as in A. apexfulva. They 

 are nearly white, but under a lens there is more or less buff 

 or ochraceous tint, either on the second whorl or in form of a 

 band above the suture of the third whorl. The tip may be 

 white, but in several of Newcomb 's shells the first half- whorl 

 has a faintly gray or dusky shade. Gulick's Wahiawa shells 

 have the embryonic whorls ivory to pale ocher, the tip white 

 or with the faintest gray tint. The color of the later whorls 

 is in streaks of burnt umber to blackish cut by paler or white 

 spiral lines, which may be numerous or very few. Sometimes 

 the streaks are of some tint of vinaceous drab. 



The specimens from Wahiawa which Gulick noted under his 

 description of A. leucozonus are in my opinion merely A. 

 swiftii with white sutural band. Very few were found, part 

 of them now before me. 



