THE LAND AND FRESHWATER MOLLUSCA OF DORSETSHIRE. 105 



4. z. PUEUS, Alder, pi, 7. 



Body yellowish-grey or whitish, very finely punctuated with black 

 spots. 



Shell compressed, rather more convex above than below, very 

 thin and fragile, transparent, not glossy, light horn-colour or 

 reddish, tendingsometimes to greenish, exquisitely sculptured trans- 

 versely by numerous curved striae above, and spirally by still finer 

 ones ; whorls four, the last occupying scarcely one-half of the shell ; 

 umbilicus deep, exposing the interior. L.0.075. B.0.15. 



Hab. Among dead leaves and moss in woods. Houghton 

 Wood ; Morden Park (J.C.M.P.). Creech Grange Woods. 



5. z. KADIATULUS, Alder, pi. 7. 



Brit. Conch., vol. i., p. 166 ; Bobinson's Purbeck, p. 177. 

 Body dark, tentacles nearly black. 



Shell compressed, convex on both sides, very thin, fragile and 

 glossy, semi-transparent, dark horn-colour, paler underneath, upper 

 part beautifully marked with delicate, close-set, longitudinal striae, 

 which reach the suture ; whorls four-and-a-half, the last occupying 

 rather less than one-half of the shell; suture moderately deep; 

 umbilicus narrow and deep, exposing the interior ol the spire. 

 L.0.075. B.0.15. 



Hab. Under stones and among moss in woods. Dorset 

 (Gwyn Jeffreys) -, in a lane near Godlingston, Swanage (Smith) ; 

 under moss, Whatcombe Park (J.C.M.P.). 



6. z. NITIDUS, Muller, pi. 7. 



Body very small, strongly truncate in front, covered with large 

 round flat tubercles ; black or bluish-black. 



Shell depressed, semi-globular, convex above, flat and concave 

 towards the centre beneath ; thin, fragile, slightly transparent, 

 smooth, shining ; whorls five, the last occupying about one-half of 

 the shell ; suture well marked ; spire somewhat prominent and 

 blunt ; ttwfo'/zVz/.y large, showing the interior. L.O.I. B.0.275. 



Hab. Under stones, roots of grass, on mud in moist 

 places. Water-carriers in meadows adjoining the river Bredy, 

 Puncknoll ; watercourses Chamberlayne's, Bere Regis 

 (J.C.M.P). 



