92 THE LAND AND FRESHWATER MOLLUSCA OF DORSETSHIRE. 



enormously large, forming of itself almost the whole shell; suture 

 well marked ; mouth oval,rather suddenly contrated above, extending 

 almost the whole length of the shell ; no umbilical slit ; pillar lip 

 arched. L.0.45. B.0.45. 



The animal is furnished with mantle lobes, with which when 

 in the water it covers the shell, the mantle is yellowish speckled, 

 with sulphury spots, and very slimy. 



Hab. Ponds, lakes, and watercourses. Chamberlayne's, 

 Bere Regis (J.C.M.P.). 



2. L. PEREGRA, Muller, pi. 7. 



HELIX PUTRIS Pult. cat.. Rack, ed., p. 56, pi. 19, f. 30, and pi. 



21, f. 13. 



Body yellowish-grey, with a greenish or brown tinge, mottled with 

 black and white specks. 



Shell ovate, oblong, moderately ventricose with fine indistinct and 

 irregular longitudinal striae, thin, slightly glossy, yellowish horn- 

 colour ; whorls five, moderately convex, the last forming about 

 five-sixths of the whole shell; spire pointed; suture well defined; 

 mouth large, oval, slightly contracted above ; outer lip reflected 

 slightly; inner lip reflected land forming a slight umbilical cleft. 

 L.0.75. B.0.425. 



Var 1. Succineaformis. Shell shaped like a Succinca and very 

 thin ; whorls four ; spires small and oblique. Var. 2. With a 

 remarkably thickened white outer lip. 



Hab. This species, so infinite in its variety of shape, is 

 most abundantly distributed throughout the County. Var I. 

 Chamberlayne's, Bere Regis (J.C.M.P.). Var 2. Pond between 

 Whitchurch and Milborne (T. RackettsJ. 



3. L. AURICULARIA, lAlin., pi. 7. 



HELIX AURICULARIA, Pult.cat., p. 49, Racfc.ed., p. 56, pi. 21, f. 17. 



Body greenish brown, darker above than beneath, with bright 

 yellow or milk-white and black specks. 



Shell obliquely oval-globose, very swollen, with closely arranged 

 unequal longitudinal striae; thin glossy, semi-transparent, yellowish 

 horn-colour ; whorls four to five, convex, the last very large.fornring 

 nearly the whole of the shell ; suture well marked ; spire short, 

 with a sharp point ; mouth very large, roundish oval, usually 

 surpassing five-sixths of the shell's entire length ; outer lip reflected ; 

 inner lip forming with the columlla a slight umbilical cleft. L 1.125 

 B.0.825. 



