96 HELICID.E. 



ii. 207.; Jeffreys, Linn. Trans, xiii. 511. Zonites radiatulus. 

 Gray, Man. 173. t. 12. f. 137. Forbes and Hanley, B. M. 

 iv. 38. t. 121. f. 1. Z. (Aplostoma) striatulus. Moq. Tand. 

 Moll. Franc, ii. 86. t. 9. f. 19 21. - Helix nitidula. Pfeiffer, 

 Michaud. Helix nitidula /3. Drop. Helix brevipes. Tur- 

 ton, Man. ed. 1. t. 5. f. 50.(??) 



Var. 1. Vitrina, transparent, greenish white: Helix vitrina. 

 Ferussac, Prod. 



Inhab. woods, &c. in wet moss. {Gray, 1821). 



Animal black. 



Shell about one twentieth of an inch in diameter. 



This species may be distinguished from the young 

 of the other Zonites by the regular and more dis- 

 tinct striae, and particularly by the flatness of the 

 whorls at their junctions. 



30. 6. ZONITES lucidits. Lucid Snail. Shell de- 

 pressed, rather convex, thin brownish horn- 

 colour, transparent, shining, finely striated, 

 whorls 4 or 5 ; umbilicus large, exposing the 

 second whorl; aperture roundish, (t. 4. f. 38.) 



Helix lucida. Drap. Hist. 103. t. 8. f. 11, 12. (not Montagu); 

 Brard, 34. t. 2. f. 3, 4.; Gray, Med. Eepos. 1821, 239.; 

 Turton, Man. ed. 1. 56. f. 38. (not 40.) Helix nitida. 

 Mutter, Verm.; Alder. Mag. Zool. and Bot. ii. 107. ; Jeffreys, 

 L. T. xvi. 339. Helix tenuis. Dillwyn, R. S. ii. 913. 

 Helix Hammonis. Strom, Act. Nedross, iii. 435. t. 6. f. 16. 

 Helix nitens. Gmelin, S. N. 3633. Helix succinea. 

 Studer in Coxe's Travels. Oxychilus lucidus. Fitz. Syst. 

 100. Tachychlamys lucida. Benson, P. Zool Soc. 1834, 89. 

 Polita lucida. Held, his, 1837, 916. Helicella nitida, 

 and H. succinea. Beck, Ind. 6. Zonites lucidus. Gray, 

 Man. 174. t. 4. f. 38. Zonites nitidus. Forbes and Hanley, 

 B. M. iv. 39. t. 120. f. 4. 7. Zonites (Aplostoma) nitida. 

 Moq. Tandon, M. Franc, ii. 72. t. 7. f. 1115. 



Inhab. moist ditches and marshy places. 



Animal black or blackish grey ; foot and lower 



