THE LAND AND FRESHWATER MOLLTJSCA OF DORSETSHIRE. 99 



Shell oval, with conspicuous lines of growth; nucleus near one end, 

 prominent. L.0.2 J3.0.125. 



Hab. Under stones, among dead leaves, and at the foot of 

 old walls. Generally distributed. 



3. L. FLAVUS, Linn. 



Body slightly contracted in front, rather broad in the middle, 

 tapering gradually to a point behind, colour of the back ash-grey, 

 with numerous pale-yellow spots; ^/W6'/</oval-oblong, finely wrinkled 

 concentrically and transversly, truncate in front, subtruncate or 

 rounded behind ; respiratory orifice postero-lateral ; foot white ; 

 margins yellowish-white ; slime yellow. L.4. B.0,75. 



Shell obliquely oval or quadrangular, rather concave on the under 

 side, thin, crystalline, and nacrous, with distinct lines of growth. 

 L.0.3. B.0.125. 



Hab. Cellars, damp places, moist woods. Generally dis- 

 tributed. 



4.- L. AGRESTIS, Linn. 



This most abundant and voracious slug is small, has an appetite 

 quite disproportionate to its size. Body spindle-shaped, ash-grey, or 

 reddish, indistinctly speckled with brown, two dark lines run from 

 the head, to the upper tentacles which are short; mantle large ; back 

 rounded, keeled obliquely towards the acute tail, surface reticulated 

 with depressed, smooth wrinkles; shield slightly emarginate in front, 

 truncate behind ; foot white, margins ihe same. L.1.5. B.0.4. 



Shell obliquely oval, concave on the underside, rather thin, with 

 indistinct lines of growth, and marked obliquely by exceedingly 

 minute striae which cross each other, nucleus very small, slightly 

 projecting behind on one side. L.0.2. B.O.I. 



Hab. Fields, gardens, and woods. Generally distributed. 



Moquin-Tandon says : " This slug lays from 25 to 70 eggs at a 

 time, and that between the months of April and November, it 

 lays no less than as many as 200. The eggs are hatched from 

 the seventeenth to the twentieth day ; the young attain their full 

 developement within less than three months." 



5. L. AKBOKUM, HoucJiard-Chantereaux. 



Body rather slender, gelatinous, sea-green, or bluish-grey, with 

 irregular yellowish-white spots of various siz'*s ; back wrinkled"; when 

 the animal is extended the wrinkles form longitudinal lines, darker 



