ACHATINELLA VULPINA. 



215 



layer of the shell, sometimes increased by splitting of bands, 

 analoga pattern, pi. 40, figs. 15-15c. 



Having green and brown lines on a paler ground, longispira 

 pattern, pi. 39, figs. 12c, d. 



Koolau forms. 



Ground yellow above, ochraceous-orange below, with a broad 

 green zone above the periphery; or dusky without a green 

 band, pi. 41, figs. 8-8c. A. v. colorata, no. 18a. 



Ground-color white above, greenish or olive-brown below the 

 periphery, with a sharply defined cinnamon band above the 

 periphery, pi. 37, figs. 10-11&. A. v. tricolor, no. 18&. 



Probably the test of breeding would show that not all of 

 the above-defined patterns are elementary. The castanea 

 pattern is often not readily separable from vulpina. Adusta 

 seems to be a stewartii-vulpina hybrid. Longispira also may 

 be a product of hybridism rather than an elementary pattern. 



Usually two or more patterns occur in one colony or often 

 on one tree, and in any large lot there may be some blends or 

 unusual patterns. 



Table showing distribution of the elementary patterns of 



A. vulpina. 



