ACHATINELLA DIMOBPHA. 261 



the zonata have the bands very broad an unusual variation 

 (pi. 47, figs. 9 to 13). A lot taken by Kuhns has the same 

 albescens forms and the dimorpha pattern short, curta-like 

 specimens. 



Waialee. PI. 42, figs. 15, 16; pi. 47, fig. 14. Known to 

 me from abundant series taken by Mr. Gulick. The albescens 

 pattern, in white and varying tints of yellow, often with a 

 peripheral white line ; columella rarely lilac-tinted. Zonata 

 pattern, with white or yellow ground. Also a dimorpha pat- 

 tern, the ground pale yellow or white, sutural line tawny, 

 often very faint, columellar fold white or flesh-tinted. It is 

 similar to pattern b from Pupukea. 



Kahuku. Gulick reports zonata, dimorpha and albescens. 

 Some of the zonata have lines and oblique streaks between the 

 bands, slightly recalling formosa (pi. 47, fig. 15). Very beau- 

 tiful pale albescens have been collected by Kuhns, Thaanum 

 collection (pi. 47, fig. 16), and Mr. Spalding has taken zonata 

 in Pahipahialua valley, to the west of Kahuku. 



From Kahuku going southeast there are no records of 

 dimorpha forms until we reach Kaipapau, and there is another 

 hiatus between Hauula and Kaaawa, which is the limit of the 

 species in this direction, so far as we know. The locality 

 "above Ewa" given by Mr. Sykes for zonata must belong to 

 some other species, perhaps casta. 



Kaipapau. On the lower ridges, just above the kukui tree 

 belt Mr. Spalding took the zonata (pi. 47, fig. 17) and al- 

 bescens patterns. 



Hauula. The zonata and albescens forms, taken by Gulick, 

 are before me. 



Kaaawa. Mr. Gulick records dimorpha, albescens, zonata 

 and contracta from this valley, collected by Mr. J. S. Emerson. 

 The abundant series of the zonata pattern varies widely, the 

 following forms being represented. 



Typical zonata, with two blackish bands and a narrower 

 sutural band (pi. 42, fig. 20). Varying to forms with fine 

 lines above the lower band, columella lilac-tinted, or when 

 there is a fourth narrow band around the columella, the fold 

 is purplish-brown (pi. 47, fig. 18). 



