72 



Land Shells," adds 9 species of JTeZ/^aud 1 sp. of Vitrina; and 

 in litter is a Succinea and Helix n. sp. 



My own collections furnish four species of Helix not 

 previously known to occur. 



To summarise, Victoria is now known to be inhabited by 23 

 indigenous species of land snails, distributed as follows : — 

 Helix, 18 species ; Helicarion, 1 ; Vitrina, 2 ; JBulimus, 1 ; and 

 Succinea, 1. 



The generic grouping of the land snails of Victoria is identi- 

 cally that of those of Tasmania. The genera represented are 

 all in common, one of which, Helicarion, is not found in any 

 other parts of Australia. Victoria as well as Tasmania is 

 marked by the absence of the genus Pupa, so well represented 

 in the neighbouring colonies of South Australia and New 

 South Wales, and by the absence of the operculated genus 

 Fupina, which links the molluscan fauna of New South Wales 

 with that of sub-tropical Queensland. 



Nanina, represented by a widely distributed species, is 

 common to extra-tropical South Australia and tropical Queen- 

 land, but is not known in the south-east of Australia. 



The geographical distribution of the genera of terrestrial 

 pulmonates inhabiting South and South-Eastern Australia is 

 shown in the following table : — 



slugs 



I have excluded from my survey the consideration of the 

 as the information we are in possession of is very 

 meagre, possibly because so little attention has been given 

 to them. However, Tasmania has the peculiar genus Cystopelta 

 (C. JPetterdi, mihi), a Limax (L. Legrandi, mihi), and a 3Iilax 

 (M. Tasmanicas, mihi). South Australia affords one species of 

 Milax {M. nigritus, mihi) ; and New South AVales a Milax (J/". 

 olivaceus, Gould), and a peculiar genus of bitentaculate slug 

 Trihoniophorus {T. Grceffli), Humbert. 



