940 HELIX. 



33 and 34. Knorr, v. t. 17. f. 4. Berlin. Mag, iv. t, 7. 

 f. 4 to 9. Favanne, t. 6l. f. D Q. 



Variety. White, with three yellowish brown bands. 



Helix vivipara. Muller Zool. Dan. iii. p. 33. t. 101. f. 5 

 and 6. 



Junior. Less ventricose, and the whirls less produced. 

 Helix compactilis. Pulteneys Dorset Cat. p. 48. 

 Pennant Zool. iv. t. 85. upper fig. 



Inhabits stagnant waters in Europe, especially in a clayey soil. 

 Linnaus. Britain. Lister. France. Geoffroy. Denmark. 

 Muller. 



Shell about an inch and a quarter long, and an inch broad, of 

 an olive-colour, with three brown bands on the body-whirl, 

 which become gradually obliterated on the spire ; it has six 

 ventricose whirls, and some of the wrinkles are stronger than 

 others, which mark the growth of the shell ; behind the re- 

 flected pillar-lip is the slight appearance of an umbilicus ; it 

 is unusually strong for a fresh-water shell, and the animal is 

 viviparous. 



FASCIATA. 121. Shell ovate, ventricose, miicronat- 

 ed, striated, shining, and white with three red 

 bands ; aperture ovate. 



Helix fasciata. Gmelin, p. 3646. 



Helix ventricosa. Olivi Adr. p. 178. 



Nerita fasciata. Muller Verm. ii. p. 182. Schroeter Fluss, 



p. 369. 

 Chiocciola maggiore. Ginanni Op. Post. ii. p. 49. t. 1. 



f. 6. 

 Gualter, t. 5. f. M. 

 Inhabits Italy and Saxony. Muller. 



Muller says that this shell varies in size from nine and a half to 

 fifteen lines long, and from seven and a half to ten broad, 

 and that it is white, pellucid, and glabrous, and has three red 

 bands on the body-whirl, and two on the first whirl of the 

 spire ; he says it has the aperture less rounded than in H. 

 vivipara, to which it is nearly allied, and the shell, which in 

 the Zoologia Danica he has figured for a Variety of that 

 species, appears to me to be a link which connects them. 

 Mr. Adams, in the Fifth Volume of the Transactions of the 

 Linnaean Society, has figured a perfectly distinct microscopic 

 species under the name of H. fasciata, but his descriptions 

 are rarely sufficiently clear, and I have not in general thought 

 it necessary to notice them. 



