MOLLUSCAN INVESTIGATION IN ABERDEENSHIRE 201 



MOLLUSCAN INVESTIGATION IN ABERDEEN- 

 SHIRE SOUTH, AND KINCARDINESHIRE. 



By Fred Booth. 



[This is the fourth of the series of notes on investigation of the northern 

 range of mollusca in Scotland, undertaken by aid of a Government 

 grant. W. D. R.] 



The previous paper, on Aberdeenshire North, may be 

 referred to for observations on the nature of the collecting 

 ground. The collecting in South Aberdeenshire was done 

 on the nth, 12th, 13th, and 14th of August 1910. 



(1) Aberdeenshire South. 



Agriolimax agrestis. Common in both its usual forms, var. 



pallida = type, and var. reticulata, on the sandhills at 



Belhelvie, and on the banks of the Don between the two 

 bridges. 



Agriolimax Icevis. The Marsh Slug was found, 13th August, on the 

 margin of a brick-pond near Bridge of Don. 



Mi lax sowerbyi. Found in a narrow lane at Old Aberdeen, on the 

 way to the Cathedral, nth August. 



Arion ater. Found on the banks of the Don River between the 

 two bridges, the type, and vars. castanea and marginata 

 occurring. 



A. subfuscus. Var. rufofusca, with a single adult example of var. 

 alba, which had a yellow tinge at both ends, occurred on 

 the banks of the river Don between the two bridges, 12th 

 August. 



Arion hortensis. An adult example in Persley Den, 14th August, 

 and immature ones on the banks of the Don between the 

 two bridges. 



Arion circumscriptus. In the last-named locality. 



Arion intermedins. A few small specimens, both of the type and 

 21 2 C 



