PULMONATA. 183 



a. European. 



1. VlTRINA PELLUCIDA. B.M. 



Shell rather convexly-depressed, nearly smooth, very bright, 

 pellucid, beiylline ; spire moderate, slightly prominent ; suture 

 a little crenukted, concolorous or reddish ; whorls three, rapidly 

 increasing, slightly convex, the last wide beneath, nearly level, 

 impressed in the middle, slightly membranous-margined ; aper- 

 ture oblique (45°), lunate-rounded, as wide as it is high ; peri- 

 stome slightly inflected, regulai-ly arched on each side. Lat. (5 

 by 4f , alt. 34 mill. 



Helix pellucida, Mull. Verm. ii. 15. n. 215. 



Dillw. Descr. Cat. ii. 947- n. 134. 



Cuvier, Regne Animal, ii. 405. 

 Helix hmacoides. Alien, p. 85. t. 11. f. 20. 

 Vitrina beryllina, C. Pfr. i. 17. t. 3. f. 1 ; iii. 55. 



Beck, hid. p. 1. n. 4. 

 Vitrina pellucida, Rossm. i. 74. f. 28. 



Charp. Cat. Moll. Suisse, p. 2. 



Beck, Ind. p. 1. n. 5 ; & M. E. C. (ined.) viii. t. 1. f. 1. 



Reeve, Conch. Syst. ii. t. 162. f. 1. 



Pfr. Mon. Helic. li. 492. n. 1 ; Icon. t. 1. f. 14-17. 



Desk. 96 ". n. 1. 

 Vitrina Miilleri et Dillwynii, Jeffr. Linn. Trans, xvi. pt. 2. p. 326? 

 Cobresia helicoides vitrea, Hiibner (teste Fer.). 

 Vitrinus pellucidus, Montf. Conch, ii. 239. 

 Hyalina pellucida. Stud. Verz. p. 11. 

 Limacina pellucida a, Hartm. in Neue Alpina, i. 246. 

 Helicolimax pellucida, Fer. Pr. 7 ; Hist. t. 9. f. 6. 



Hab. Germany; Switzerland; France; Britain; Sweden, &c. 



2. Vitrina annularis. B.M. 



Shell depressedly-globose, thin, nearly smooth, pellucid, bright, 

 greenish-hyaline ; spire slightly prominent, obtuse ; whorls three, 

 gradually increasing, the last I'ounded, w ide at the base ; aper- 

 ture scarcely oblique, oval-rounded ; peristome simple, columellar 

 margin short, nearly vertical. Lat. 4 by 3, alt. 2^ mill. 



Hyalina annularis. Stud. Verz. 11. 

 Limacina annularis, Hartm. in Neue Alpina, i. 246. 

 Helicolimax annularis, Fer. Pr. 8 ; Hist. t. 9. f. 7. 

 Vitrina annidaris, Gray, Ann. Phil, new ser. Lx. 409. 



Charp. Cat. Moll. Suisse, p. 2. 



Beck, Ind. p. 1. n. 7- 



Pfr. Mon. Helic. ii. 493. n. 2 ; Icon. t. 1. f. 26, 29. 



Desh. 96 '«. n. 2. 



