178 PROCEEDINGS COTTESWOLD CLUB 191 1 



In " Science Gossip " for the year 1891 (p. 125), Mr E. H. 

 Robertson mentions Pupa [Vertigo) suhstriata and Zonites 

 excavatus as occurring near Painswick. I venture to suggest 

 that the name Vertigo pygmcea should be substituted for that 

 of Pupa substriata. 



A paper by Mr W. Harcourt-Bath was pubhshed in " The 

 Zoologist " for 1909,' in which, among a number of terrestrial 

 mollusca stated to exist in the Cotteswolds, are mentioned 

 Testacella scutulum, Milax gagates, Vitrea rogersi and Succinea 

 ohlonga. The authority which the author gives for his list is 

 " The Flora and Fauna of Gloucestershire." by Witchell and 

 Strugnell. With the possible exception of V. rogersi, the 

 records as regards the species mentioned are probably wrong. 

 Testacella scutulum has been found in a few places, usually 

 in nursery gardens, having in all probability been introduced 

 from abroad, in soil with plants ; it would not therefckre be 

 a matter for surprise if it should eventually turn up in the 

 neighbourhood of Gloucester or Cheltenham. Succinea ohlonga 

 is much less likely to be found, as the conditions under which 

 it lives in other places do not occur in this county. 



Of the Estuarine shells mentioned in Jones' list, all but 

 Rissoa ulvcB and R. barleei — now known as Paludestrina 

 stagnalis Brasier, and var. barleei Jeffreys — have been omitted. 

 These two forms live in brackish water, and are by many 

 malacologists classed with the Land and Fresh-water Mollusca, 

 whereas the other species mentioned, although spending a 

 considerable portion of their lives out of the water, never 

 wander away from the reach of salt water. 



There are about 154 recognised species (omitting varieties) 

 of Land and Fresh-water Mollusca existing in the British 

 Islands. Of these, some ten forms have been introduced 

 within recent years. Several of the introduced forms, although 

 occurring in a number of localities, only flourish under more 

 or less artificial conditions, for example, Opeas goodalli Miller, 

 lives only in hot-houses and appears to have a partiality for 

 pine-beds : and Physa acuta Draparnaud, occurs only in the 

 Victoria Regia tank at the Royal Horticultural Society's 

 Garden, Regent's Park, and a few other similar places. Plan- 

 orbis dilatatus was first found in Lancashire, having been 



I The Zoologist, 4th ser., vol. xiii., February, 1909. 



