218 ACHATINELLA VULPINA. 



yellow ocher on the last part, and fading on the spire, or this 

 ground may be decorated with bands and lines of chestnut 

 brown or blackish-chestnut; the banded form being the pat- 

 tern of Mr. Baldwin's types. It is found only in hybrid 

 colonies of the two patterns, plain yellow and banded, usually 

 both on the same tree. 



Length 21, diam. 12.4 mm. ; 6% whorls (cotype of ernestina) . 



Length 19.7, diam. 11 mm. ; 6 whorls (topotype). 



On the floor of Nuuanu there is a smaller, narrower race 

 with the coloration of ernestina. PI. 39, figs. 7 to 7c were 

 taken by Dr. Cooke on one small lehua shrub in the middle 

 of upper Nuuanu near the old road to the Pali. Three are 

 banded, one on an ocher yellow ground, the others straw and 

 primrose yellow. One specimen is bandless, of a ''turtle 

 green" tint, an olivacea admixture. 



Further west, in an isolated clump of nearly dead lehua 

 trees in the valley near the end of the ridge defining Hille- 

 brand's Glen, Mr. Richard A. Cooke collected a large series, 

 pi. 39, figs. 8 to 8e, varying from elongate to conic in shape. 

 The longer shells have ernestina pattern on light or dark 

 ground. The shorter ones are straw yellow fading to buff 

 above, base chestnut, the colors either sharply defined (fig. 

 8b) or blended (fig. 8c) ; yellow with a dark sutural line 

 (fig. 8a), or amber or straw yellow, uniform or with some 

 white bands (fig. 8). 



In a lot taken in the same place by Dr. C. M. Cooke there 

 are 22 of the uniform yellow pattern, 12 of the patterns of 

 figs. 8&, 8c, 1 ernestina pattern. In a lot of 7 individuals 

 from one tree, all of these patterns occur, four of the pattern 

 of figs. 86, c, but with a dark sutural line, one each of the 

 other patterns. 



The olivacea pattern without chestnut bands occurs in 

 Glen Ada, on the southern side of Nuuanu (pi. 39, figs. 11 to 

 lie, coll. by Pilsbry) the color varies from amber yellow to 

 paris green or various blends, yellow ocher passing into green 

 towards the suture and base, or ocher with a few green lines. 

 The summit is buff, and there are no brown bands. This is a 

 well-known form, back to the time of Gulick. 



