TASMANIAN LAND SHELLS. 31 



round the umbilicus ; aperture lunately-rounded ; peristome simple, 

 thin ; margins much approached ; columellar margin broadly and 

 triangularly dilated above. 



Diameter, greatest 0-17, least 0*14 ; height, O'lO of an inch. 



Habitat. — North- West Bay, near the Great Lake, George's Bay 

 (East Coast). 



If I have identified this species correctly, it comes between H. 

 Diemenensis and H. Stanleyensis ; it is much smaller than the 

 former, with much the a23])earance of the latter. The specimen in my 

 collection has 5^ to 6 whorls, and is obsoletely, minutely decussate 

 throughout, in other respects agreeing with the description of Dr. Cox 

 as given above. 



47. — Helix ( ) Tasmania — Cox. 



Mon., 1868, p. 22, pi. xii., fig. 4. 

 Legrand's Col. for Mon., sp. 14. 



Shell widely umbilicated, depressed, each whorl regularly marked 

 above with alternate dark chestnut and light segments, regularly and 

 strongly ribbed, thin ; spire slightly raised ; whorls 5, flattened toward 

 the suture, the last descending a little in front, base convex ; umbilicus 

 deeply funnel-shaped ; aperture roundly-dilated, lip simple, sharp ; 

 margins closely approaching ; columellar margin not dilated at its base. 



Diameter, greatest O'lS, least 0*11 ; height 0*07 of an inch. 



Habitat. — Moiuit Wellington, Brown's Kiver, North- West Bay, 

 George's Bay, Becherche Bay, Ringarooma C?). 



A pretty little form of constant character, generally found in rather 

 dry situations under stones. In form and sculpture much resembling 

 H. subrugosa (Brazier), and in colouration to the next. 



48. — Helix ( ) MacDonaldi — Cox. 



Legrand's Col. for Mon., sp. 32, pi. 1, fig. 4. 



H. Julijormiis — Cox (name pre-occupied). 



if. Gouldi — Cox (ditto). 



H. Kingstonensis — Cox. 



Legrand's Col. for Mon,, sp. 40, pi. ii., fig. 5. 



Shell with an open funnel-shaped umbilicus, broadly discoid, yellow, 

 marked at regular intervals with broad transverse chestnut markings ; 

 spire flattened, very finely, closely striated with capillary riblets ; whorls 



