THE NAUTILUS. Ill 



timber, I collected a number of specimens of Achatinella muste- 

 lina and accidentally found one plain Partulina dubia, the first 

 I had ever collected on the north side of the Waianae Range. 

 On Dec. 29, 1918, I returned for more, and found a few plain 

 ones a few yards away from the trail and less than fifty yards 

 from Haleauau stream bed. A scant hundred yards farther up 

 the trail, under the bark and in knot holes of the smooth-leaved 

 lehua trees growing within ami's reach of the very trail, I found 

 several fine specimens of dark, banded P. dubia, very similar to 

 those which I had found in Waimano Valley, above Pearl City, 

 Koolau Range, in 1913. In spite of careful and persistent 

 hunting, they could be found only within a very small area, 

 less than a hundred feet in extent. They were all within fifteen 

 feet of the ground, most of them not more than five feet off the 

 ground. 



I showed them to Mr. Irwin Spalding, who said that they 

 were the most distinctly banded dubia he had ever seen; but I 

 think that those which I collected in Waimano Valley, above 

 Pearl City, Koolau Range, in 1913, are more distinctly banded, 

 and in some specimens even darker. At the first opportunity, 

 Jan. 5, 1919, I took Mr. Spalding up to the locality and we 

 managed to find a few more specimens in a knot-hole which I 

 had not searched quite thoroughly. Most likely you have seen 

 those specimens in Mr. Spalding' s collection while you were 

 here last summer. 



No further visits were made by me till June 13, 1920, when 

 I went alone again and managed to find four more excellent 

 specimens of banded dubia, in the same locality. A scant hun- 

 dred yards above this dubia locality and a little farther off the 

 trail not more than two hundred feet away from the trail on 

 the Haleauau side I found under the bark on the trunks of 

 the smooth-leaved lehua trees four young specimens of an en- 

 tirely new variety or species of Achatinella. They were all near 

 the ground. I hunted the tree trunks, but the higher I climbed, 

 it seemed, the less luck I had, so I finally settled down to hunt- 

 ing down low. I could not hunt very long then as it was get- 

 ting late. 



Having collected a few Achatinella spaldingi (with Mr. Spald- 



