PROCEEDINGS OF SOCIETIES. 
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590 Limax brunneus, Draparnaud ? v. 4. p. 20. 
591 Limax tenellus, Muller, v. 4. p. 21. 
f592 Limax Sowerbii, Ferussac. v. 4. p. 22. 
j-593 Limax gagates, Draparnaud. v. 4. p. 24. 
III. TESTACELLIDiE. 
f594 Testacella haliotoidea, Draparnaud. v. 4. p, 26. 
IV. HELICIDJE. 
f595 Vitrina pellucida, Muller, v. 4. p. 30. 
|596 Zonites cellarius, Muller, v. 4. p. 33. 
f597 Zonites alliarius, Muller, v. 4. p. 34. 
f598 Zonites nitidulus, Draparnaud. v. 4. p. 36. 
|599 Zonites purus, Alder, v. 4. p. 37. 
f600 Zonites radiatulns, Alder, v. 4. p. 38. 
■j-601 Zonites nitidus, Muller, v. 4. p. 39. (Z. lucidus of Gray's Turton.) 
f602 Zonites excavatns, Bean . v. 4. p. 40. 
f603 Zonites crystallinus, Muller, v. 4. p. 41. 
604 Helix aperta, Born. v. 4. p. 43. 
f605 Helix aspersa, Muller, v. 4. p. 44. 
606 Helix pomatia, Linneus. v. 4. p. 46. 
f607 Helix arbustorum, Linneus. v. 4. p. 48. 
608 Helix cantiana, Montagu, v. 4. p. 50. 
609 Helix carthusiana, Muller, v. 4. p. 51. 
f610 Helix nemoralis, Linneus. v. 4. p. 53. 
f611 Helix hortensis, Draparnaud. From comparison of some hundreds 
of this Mollusc, and the one immediately preceding—in a living 
state, and of all ages—we are led to consider them as totally different 
species. It is stated in Messrs. Forbes and Hanley’s “ British Mollusca,” 
“that complete series may be obtained, beginning with the typical 
‘nemoralis’ to ‘hybrida,’ and ending in ‘hortensis.’” Although some 
five or six hundred specimens have been examined by us, we have never 
yet found such a series ; but have been, in all cases, able to distinguish 
between both shells. We regard the Helix hybrida as a variety of 
H. hortensis, and have specimens of every shade of gradation between 
the two. Without entering fully into particulars in this place, we may 
add, that in all cases where we were shown a series of shells between 
H. nemoralis and hortensis, some of the specimens, and those the most 
important in the chain, were invariably either drift shells or had been 
scorched during the process of burning the furze (Ulex Europseus), a 
practice common throughout Ireland. 
f612 Helix Pisana, Muller, v. 4. p. 56. 
f 613 Helix virgata, Da Costa, v. 4. p. 57. 
614 Helix caperata, Montagu, v. 4. p. 59. 
|615 Helix ericetorum, Muller, v. 4. p. 61. 
616 Helix obvoluta, Muller, v. 4. p. 63. 
617 Helix lapicida, Linneus, v. 4. p. 65. 
[618 Helix rufescens, Pennant, v. 4. p. 66. 
f 619 Helix hispida, Linneus. v. 4. p. 68. (Includes as varieties H. sericea, 
H. concinna, and H. depilata of Gray's Turton.') 
620 Helix revelata, Ferussac. v. 4. p. 70. 
621 Helix Sericea, Draparnaud. v. 4. p. 71. (H. granulataof Gray's Turton.) 
f622 Helix lamellata, Jeffreys, v. 4. p. 73. 
■623 Helix aculeata, Muller, v. 4. p. 74. 
•624 Helix fulva, Muller, v. 4. p. 75. 
•■625 Helix fusca, Montagu, v. 4. p. 77. 
■•626 Helix pulchella, Muller, v. 4. p. 78. 
■627 Helix rotundata, Muller , v. 4. p. 80. (Zonites rotundatus of Gray's 
Turton.) 
