TASMANIAN LAND SHELLS. 45 



simple, moderately thickened, rounded at the edge ; right and basal 

 margins regularly and moderately acute ; columellar margin partially 

 twisted in the centre, and above slightly expanded and adherent. 



Length 50, breadth 26 ; hsngth of aperture 23, width 12 mil. 



Habitat. — Mount Wellington (part), Blue Tier, banks of Kivers Leven 

 and Forth, Scottsdale, Mount Arthur, vicinity of Circular 

 Head ; in moist, densely-timbered scrubs. 



I have taken the largest specimens as the typical of the species. 

 The measurements given are but approximate, for it is often met with 

 of somewhat greater development, and again gradually merges into 

 variety a. 



Variety a. — Shell ovately globose, colouring and markings as above, 

 occasionally with a greenish appearance pervading the shell ; spire short ; 

 often with a more or less distinct sinus near the suture. 



Length 33, breadth 21 ; length of aperture 17, width 9 mil. 



Habitat. — Ringarooma, Macquarie Harbour, Port Davey, Table 

 Cape. 



For figures of this form see Pro. Lin. Soc. N.S.W., vol. 3, pi. vii., 

 figs. 4 and Ga. The latter is but a very immature specimen, not nearly 

 full-grown, as are some of the other specimens figured on the same plate. 



Variety h. — Shell narrowly ovate, rather attenuated toward the 

 apex ; colour variable — greenish-yellow to dark brown — with more or 

 less intense longitudinal markings of a paler colour, encircled by two 

 greenish-yellow bands, bordering one of dark maroon-brown, beneath 

 spiral bands generally of a darker shade than the rest of the shell, 

 gradually fading to yellowish-green at the base. 



Approximate measurements — length 32, breadth 15 ; length of 

 aperture 1 3, width 8 mil. 



Habitat. — Widely distributed. • 



The most abundant and variable form of the shell 



Variety c. — Shell ovate, thin, attenuate towards apex, which is 

 somewhat apute ; pale yellowish-brown, one band of same colour beneath 

 a zone of dark brown, beneath band dark brown to base, suture crenu- 

 lated with yellow. 



Length 25, breadth 13 ; length of aperture 12, width 8 mil. 



Habitat. — Swansea, East Coast ( Legrand ). 



A thin, pale variation of peculiar markings. 



