46 A MONOGRAPH OF 



Variety d. — Shell narrowly-ovate, thin, attenuate towards apex ; 

 pale greenish-yellow throughout, zoned by two bands, the upper and 

 widest intense dark brown, lower of much paler tint. 



Length — ; breadth — ; length of aperture — ; width — mil. 



Habitat. — Back of Cataract Hill, near Launceston. 



This pale-green form is found in dry situations, and is very rare. 



Variety e. — Shell ovately globose, rather thin, finely granulate 

 throughout, spire short, rather acute ; greenish-brown shading to 

 greenish-yellow toward the base, zoned with three (3) wide, intensely 

 dark, almost black, bands. 



Length 25, breadth 15 ; length of aperture 13, width 8 mil. 



Habitat. — Pattersonia, near Launceston. 



By far the most elegant variety that I have hitherto met with ; the 

 three dark zones are very conspicuous. 



Variety f. — Shell ovate, zoned as preceding, but covered more or 

 less, sometimes almost entirely, witli a yellow, golden periostrica. 



Length 25, breadth 13 ; length of aperture 11, width 7 mil. 



Habitat. — Rocher's Creek, George Town road. 



A curious variation, only collected at the above locality. All the 

 specimens have the golden periostrica, in many cases totally obliterating 

 the general colouration of the shell. 



This is the most abundant land shell in the island, and at the same 

 time subject to the greatest amount of variation both as regards 

 colouration, size, and even form, according to the more or less favourable 

 location for its development. I have enumerated most of the con- 

 spicuous variations that I have met with, but almost all intermediate 

 grades are to be obtained, although varieties d. and e. are very distinct 

 from the others. It adapts itself to all circumstances, and is apparently 

 as much at home on dry rocky hills as on the moist banks of the 

 streams, or in the dense fern-tree and myrtle scrubs. In dry situations 

 it is stunted in growth, and is then generally more highly-coloured and 

 attractive in appearance, although under all circumstances it is a tine 

 and conspicuous species, and always the first to attract attention. The 

 Rev. Mr. Woods says (Pro. Lin. Soc. N'.S. W., vol. iii., page 89) — " I 

 have seen a shell of a pink- white with only one deep jDurple-brown 

 narrow band : no other band or colour." Specimens of this colouration 

 I have often met with, but invariably dead specimens that have been 

 long exposed to atmospheric influences. Mr. Legrand notes a black 

 variety : this I certainly have never seen. The egg is hard-shelled and 

 white ; when the young first issues from it, the shell is sub-orbicular in 

 form, and of pale colour and brittle texture. The arrangement of the 



