40 



belonging to the section Discus, coming from Port Davey, de- 

 serves particular notice. 



Austrinus is more noticeable from its habitat than from the 

 shell itself, which is allied to Allporti. It comes from the 

 extreme south of the island, near South Cape Bay. 



We possess three introduced species, Morti, Sydneyensis, 

 and Alexandra), all from New South Wales, and most probably 

 brought in mould with plants. 



Of our two species of Bulimus, the first well known one 

 B. Dufresni, belongs to the same section (Caryodes) as a 

 South Australian species, Angasianus. The second B. 

 (Mesembrinus) Tasmanicus, Pfr., is nearly allied to an Aus- 

 tralian species, Kingi. Nothing like either of these has yet 

 been described as from New Zealand. We have no repre- 

 sentative of sucli shells as Shongi. Our two Vitrinas belong 

 to the section Helicarion ; one is also found in South Aus- 

 tralia, and probably other parts of the continent. The other, 

 the fine V. Milligani, is found only on the western side of the 

 island. 



Our one species of Succinea is also common to Australia. 



We have neither Pupa, Pupina, or Balea, all found in North 

 and North-eastern Australia, or Truncatella, which is very 

 plentiful in South Australia. An gas gives us credit for a 

 Blanfordia, I never found it or heard of it here ; the shell 

 is however so minute that it might easily be passed by. 



The materials yet collected are not sufficient to fix the 

 geographical limits of the different species. Subjoined is a 

 list of all yet described species : — 



