STANDEN : MOLLUSCA OF PORTSALON. 20I 



each curiously located at the base of a prickle, and dropped 

 at the slightest touch in a most provoking fashion, causing 

 me to lose many. 



*V. alpestris Alder. — In the golf-links rejectamenta. Rare, 

 but extremely clean, fresh, and beautiful. 



*V. pygmaea Drap. — Dead amongst the golf-links rejecta- 

 menta, Portsalon ; and alive amongst moss at ' Bottom 

 Shore' Bay, very dark-looking specimens, but not at all 

 common in either locality. 



*V. substriata Jeff. — Much more plentiful than the last 

 species, in rejectamenta and moss-shakings, Portsalon. 

 All dead, but many quite fresh and in good condition. 



*V, pusilla Miiller. — Not uncommon in the Portsalon rejecta- 

 menta. The shells are quite fresh, and totally unlike any 

 I have seen from elsewhere, being remarkably thin in 

 texture, and of a delicate translucent whitish colour. 

 V. angustior Jeff. — By far the commonest of the Vertigos 

 found amongst the golf-links rejectamenta, Portsalon. 

 Nearly all the shells are beautifully fresh and perfect, the 

 animals in many cases being apparently only recently dead. 

 I feel confident that ' sweeping' the long grass on the banks 

 of the river with a net during wet weather would result in 

 the capture of this species alive in plenty. There must be 

 myriads in this locality, judging from the large number 

 I took of quite fresh shells. 

 Balea perversa L. — Extremely plentiful in tufts of Ortho- 

 trichum phyllmitheniuni high up on the trees in the wood 

 behind the hotel, Portsalon. 

 Clausula rugosa Drap. — Sparingly amongst the rejecta- 

 menta at Portsalon, and very common under moss-covered 

 stones at Kinny Lough. Mostly a short stumpy form 

 approaching variety tuniidiila Jeff 



*Succinea elegans Risso. — Plentiful on the margin of water- 

 holes on golf-links, Portsalon. A richly-coloured form of 

 variety ochracea Betta. 



