120 VITIUNINiE. 



Genus VITRINA, Draparnaud. 



Mantle with the front edge greatly extended and covering 

 the neck often as far as the tentacles. 



Shell pellucid, hyaline; whorls few, rapidly increasing, 

 the last dilated ; aperture wide ; peristome thin, simple, 

 acute. 



Syn. Virtrinus, Montf. Helicolimax, Ferus. Semi- 

 limax, Ferus. Limacina, Hartm., not Cuvier. Hyalina, 

 Stud., not Schum. or Ferus. Pagana, Gist. 



Ex. V. fasciata, Eydoux and Souleyet, pi. 72, fig. 2. 

 Shell, V. pellucida, Mutter, fig. 2, a. 



In its geographical distribution the genus Vitrina is 

 found in every part of the globe, the species being most 

 numerous north of the Equator. They live in moist 

 situations, among loose earth, stones, grass, and moss. 

 They are very lively, crawling constantly about, and when 

 touched will sometimes jump several inches from the 

 ground. The tail of the animal is obliquely truncated, 

 and the edge- teeth of the tongue are aculeate. 



Species of Vitrina. 



semulana, Mull. elongata, Drap. 



Beckiana, Pfeiff. fasciata, Eyd. and Soul. 



Behnii, Lowe. fumosa, Pfeif. 



Birmauica, Phil. grandis, Beck. 



caperata, Gould. Gruneri, Pfeiff. 



cornea, Pfeiff. gutta, Pfeiff. 



Cumiugi, Beck. Lamarckii, Ferus. 



diaphaua, Drap. lirapida, Gould. 



Draparnaldi, Guv. Luzouica, Pfeif. 



Edgariana, Bens. marginata, Beck. 



