MOLLUSCA IN THE NORTH OF SCOTLAND 



253 



common, especially on the sandhills north of Peterhead, also at 

 Cruden Bay, Aberdeen North. The prevailing form of banding 

 where it was so abundant north of Peterhead was 123(45) of the 

 variety lutea. This formula would occur eight times out of ten. 



Eva obscura I looked for on the St Fergus Links, but did not 

 find it. In the University Museum at Aberdeen there are five 

 examples labelled as from this locality. 



Cochlicopa lubrica is another species which occurred throughout 

 the districts visited, but in no instance was it common. 



Pupa anglica was a scarce species and only noted in two 

 localities, both on Skye, once amongst Hairy Woodrush at the base 

 of a waterfall in a glen or ravine in the Varragill Valley near Portree, 

 and again on the Portree road about 2\ miles from Broadford, 

 amongst Iris, moss, etc., in the scrubby plantation mentioned in 

 my notes on habitats. P. cylindracea occurred throughout the 

 district, and was most abundant behind grass, etc., at the base of 

 the walls of the old church on the Torran road, Broadford. P. 

 muscorum was not seen by me, though I spent a good time searching 

 for it on the sandhills north of Aberdeen, where it is said to occur 

 amongst moss, along with Vallonia pulchella. The latter species 

 was found here by me. In the Aberdeen University Museum 

 there are examples of this species {P. muscorum), but they are not 

 labelled, and as there are numerous sets of shells from England, 

 it cannot be said where these were collected. 



In regard to Vertigo the species are apparently very rare; 

 V. substriata was collected in boggy ground at Gairloch and on 

 the Belhelvie Links. There were numerous patches of boggy 

 ground of the character that V. antivertigo is usually associated 

 with, but I could not find the species. In regard to V. a/pestris, I 

 did not observe any habitat either west or east likely to produce 

 this species, judging from my previous experience of it in Yorkshire. 

 Searching the tops of walls in woods and other situations that 

 appeared in any degree to approach in character the stations it is 

 usually found in failed to produce it. 



Balea perversa on the west coast was widely distributed, nearly 

 all walls yielding it, in some cases fairly commonly, in others 

 sporadically. It was never observed away from walls. On the 

 east coast the only locality where it was found was on the ruins of 

 an old fisherman's dwelling near the old Castle of Slains. 



(To be continued?) 



