THE BRITISH NATURALIST. 



237 



is impossible to extract the animals without breaking them, all the 

 examples found belong to the colour var. lutea ; in the same ditch 

 individuals are found having their shells of quite the ordinary 

 thickness. 



Var. (of animal). — Portion visible when the animal is in the 



shell of the ordinary color. On extracting, all except the more slender 

 hinder portion bright yellow. Two of these were obtained at Moor- 

 house in 1883, the shells were of the peculiar glassy texture described 

 under var. lilacina. When found the lips were not completed, and the 

 animals were kept in confinement till they were fully formed ; their 

 food was coltsfoot exclusively. No special result has been observed 

 in other examples fed in the same manner. The variety might be 

 called aurea. 



Section Pomatia, Beck. 



Sub-Section Cryptomphalus, Moq. 



H . (Cryptomphalus) aspersa, Mull. — Common. Generally distributed. 

 Var. albofasciata, Jeff. — Tuxford ; Creswell. 

 Var. undulata, Moq. — Worksop ; Tuxford, &c. 

 Var. flanimea, Picard. — Worksop. 



Family BULIMIDA. 



Genus Buumina, Em% 



Section Ena, Gray. 



Bulimus (Ena) obscurus, Mull. — Widely distributed, though I have 

 never found it plentiful. 



Family CIONELLIDA. 



Genus Cionella, Jeff. 



Section Zua, Leach. 



Zua lubrica, Mull. = Cochlicop a lubrica. — Common throughout the 

 county. 



Var. kyalina, Jeff. — Haughton Decoy. 



Section Cecilioides, Fer. 



Cecilioides acicula, Mull.= A chatina acicula. — Local, but abundant in 

 some places. Highfield House. Lowe. Attenboro' ; Tollerton ; 

 Colwick ; Pleasley ; Hazleford, rejectamenta. Musson. Plentiful at 

 Scarthing Moor, and in rejectamenta of the Trent. I have not taken 

 it living., 



