270 Quarterly Journal of CoiuJioIogy. 



3. Helix Aridorum, Cox, Pioc. Zool. Society, 1867, p. 924. 



Found on the flat near the watering place, under coral 

 and decayed wood. 



This is the same species found by Mr. Macgillivray at 

 the Frankland Islands and quoted by the late Professor 

 Forbes as Helix siiiiilaris, Fe'r. I have seen some of the 

 original specimens from the Frankland?, and have com- 

 pared them with what I collected at Fitzroy, under the 

 lens. They are all finely granulated, characters not to be 

 found in Helix sii/iilaris, Fer. Helix aridorum is also 

 found at the Clarence River, New South Wales, Brisbane 

 and Burnett River, Queensland. The only locality in any 

 jDart of Australia where // si/niiaris, Fe'r., is found is in 

 Guilfoyle's Nursery Double Bay and Elizabeth Bay, near 

 Sydney, New South Wales. They were introduced with 

 jjlants from the Mauritius. After rain I have found them 

 in vast numbers, crawling on the trunks of fruit trees and 

 on the ground under Samphire and Dianthus. It is quite 

 improbable that Helix siiiiilaris has ever been carried on 

 floating timber to Australia. 



4. Helix Elleryi, Brazier, Proc. Zool. Society, 1874, jx 668, 



plate Ixxxiii, figs. 3-4. 



Found under decayed leaves, near the watering place. 



A small, conical, very thin, pale brown shell, having the 

 periphery sharply keeled and spirally striated. 



It is also found on the Barnard Islands No. Ill, North 

 East Australia, under drift coral, thrown up, one time or 

 another, during some terrific gale. 



