74 Director's Annual Report. 



37 percent, of .7. inultizonata. Of this group 63 per cent, were 

 found on lehua, about 16 per cent, on straussia, and 17 per cent, 

 on guava. 



The second of these groups contains the color-varieties I-M. 

 The shells are white to yellow, sometimes marked with brown. All 

 the shells of this group are encircled at the periphery by a dark 

 brown band, or two brown lines. The apex in every case is white 

 or light brown. The columella is usually purple, almost never 

 white. This group is only found from sub-ridges I-XI\\ It con- 

 tains nearly 19 per cent, of the specimens of A. i!iutti::o)iata. Of 

 this group 53 per cent, were found upon lehua, 15 per cent, on 

 straussia, and 24 per cent, on guava; 48 per cent, of this group 

 were found on sub-ridges IX-XIII. 



The third of these groups contains the color-variety N. This 

 color-variety is so distinct from all the other color-varieties that it 

 is thought best to place it in a group by itself. All the specimens 

 came from sub-ridges III-V, 62 per cent, coming from sub-ridge IV. 

 About 40 per cent, were found on lehua, 21 per cent, on straussia, 

 and 27 per cent, on guava. 



The fourth group contains the color-varieties 0-Q. This group 

 is distributed over nearly the whole range of the species. It is 

 absent, however, from sub-ridges IX-XI. The shells of this group 

 are striped with from four to fifteen lines or bands. The apex is 

 .striped with a light brown band. The columella is usuall}' purple; 

 in only a very few cases is the columella white. Of this group 48 

 per cent, came from sub-ridge XIV; 44 per cent, were found on 

 lehua, 12 per cent, on straussia, and 43 per cent, on guava. 



The fifth group is made up of color-varieties R-T. The shell 

 is white, variously striped ; the apex is white ; columella is usually 

 purple. About 60 per cent, were found on lehua, 15 per cent, on 

 straussia, and ig per cent, on guava. This group is distributed 

 over nearly the whole range of the species ; only five specimens 

 were found below sub-ridge XIV. 



The sixth group is made up of the color-varieties ^'-Y. The 

 shells are variously colored from a rich mahogany brown to a pink- 

 ish purple. The apex is visually banded ; in some cases it is white. 

 The columella is usually purple. All except two specimens came 

 from sub-ridges XV-XVII ; 75 per cent, were found upon lehua. 



