162 POPULAR CONCHOLOGY. 



by Mauge to the Botanic Garden at Bristol, 

 where it has become acclimated. As natives of 

 England, they were first noticed by Mrs. Smith 

 of Bristol, who found the shells casually scat- 

 tered about her garden, and afterwards dis- 

 covered the animal. They are common in 

 Guernsey, and have been found at Lambeth. 

 In winter they bury themselves from one to 

 two feet deep in the earth, and are most above 

 the surface from August to November. * 



37. Vitrina. — Shell small, very thin, flat- 

 tened, terminated by a short spire, the last 

 whorl large ; mouth large, and rather 

 oval. Animal^ body long, the shell 

 only covering the extremity f ; four 

 tentacula, two of which have eyes at 

 the summit. — 7 species. 



These mollusca live in shady and damp 

 places among moss and short grass, and are 

 found in Great Britain, Germany, Sweden, 

 Celebes, &c. These little shells are distin- 



* Gray. 



f The French naturalists say that the animal cannot 

 entirely enter its shell ; but an English observer (Mr. 

 Nilson) remarks that they not only enter it, but leave a 

 space behind like the snails. 



