282 THE SCOTTISH NATURALIST 



Barra. Sandy slopes by the sea, west side of island, 7th 

 July 1S87, var. articitlata (A. Somerville) ; Barra, numerous 

 (G. A. Frank Knight, November 1916); Borve Bay, one, very 

 young (id.). 



Vallonia pulchella. 



North Uist. Griminish Point, July 1905 (J. Waterston). 



Vallonia excentrica. 



Lewis. Mealabost, fairly common among grasses in sand- 

 pockets on sandhills, 26th June 1918 (F. Montague Dyke). 



Pupa cylindracea. 



Lewis. Churchyard of Eye near Stornoway, 9th September 

 1886, one (A. Somerville); Shader, var. edentula, numerous, 

 9th September 1918 (F. Montague Dyke); Callernish stones, 

 in moss, etc., nth July 1918, several (id.); Port Arnol, 

 7th September 1918, numerous (id.); Barvas, 6th September 

 1 918, numerous under stones of old wall (id.). Mr Dyke 

 remarks that the variation in size and form is not due to 

 habitat at all, for he found the varieties indiscriminately 

 together. 



North Uist. Balelone, July 1905, vars. edentula and minor 

 (J. Waterston). 



Benbecula. Benbecula Island, 13th September 1886, a 

 few, on gneiss and sand (J. E. Somerville). 



South Uist. Loch Boisdale, on gneiss and peat, 1 7th 

 September 1886, a few (J. E. Somerville). 



Barra. Abundant in one place by roadside, under stones, 

 July 1888 (A. Somerville) ; Castlebay, 7th July 1887 (id.). 



St-Kilda. Hirta Island, var. edentula generally distributed, 

 singly and in small colonies, Ruaval, the three Hills, and 

 down the cliffs in suitable places, July 1905 (J. Waterston). 



Pupa anglica. 



St Kilda. On talus of Connacher and of Mulloch Mhor, 

 Hirta Island, July 1905 (J. Waterston). 



Sp/tv radium edentulum. 



St Kilda. Mulloch Mhor, southern slope, adult and 

 immature examples under loose stones (James Waterston). 



Vertigo substriata. 



St Kilda. Island of Hirta, July 1905, a small colony 

 under stones (J. Waterston). 



Bale a perversa. 



St Kilda. Hirta Island, July 1905, one (J. Waterston). 



