Folia Malacologica 9 : 63 -- 71 .
Morphological variation in terrestrial slug Deroceras turcicum ( Simroth , 1894 ) , and a northern extension of its range in Central Europe .
Folia Malacologica 9 : 63 -- 71 .
Morphological variation in terrestrial slug Deroceras turcicum ( Simroth , 1894 ) , and a northern extension of its range in Central Europe .