OF NORTHUMBERLAND AND DURHAM. 131 
22. H. pramzZa, Drap. 
Zonites pygmeus, Gray, Turt. Man. 167, t. 5, f. 46. 
Under decayed leaves in woods, not uncommon. 
23. H. rnupestris, Drap. 
Helix umbilicata, Mont. Test. Brit. 434, t. 13, f. 2. 
Zonites umbilicatus, Gray, Turt. Man. 166, t. 5, f. 45. 
In old quarries, and walls in exposed situations, local, and ap- 
parently confined to Limestone. Very abundant in old limestone 
quarries at Marsden. 
Mr. Gray has claimed priority for Montagu’s names for this 
and some other species over those of Draparnaud, but we are in- 
formed by the Abbé Dupuy that the names of Draparnaud bear 
date from the publication of his “Tableau des Mollusques,” in 
which this, along with other species, was described in 1801, two 
years prior to the appearance of Montagu’s “ Testacea Britan- 
nica.” The “Tableau des Mollusques” being unknown, except- 
ing by name, to British naturalists, they have been accustomed 
to consider Draparnaud’s species to date from the publication of 
his “ Histoire Naturelle des Mollusques, d&ve.,” in 1805. 
24. H. rorunpata, JZull. 
Zonites rotundatus, Gray, Turt. Man. 165, t. 5, f. 44. 
Under stones by way sides, in woods, &c., common. We have 
found the beautiful greenish white variety in Benwell Lane and 
at Tanfield, but very rare. 
25. H. caperata, Dont. 
Helix striata, Drap. Hist. Moll. 106, t. 6, f. 18-21 (not 
Miller). 
Helix caperata, Gray, Turt. Man. 162, t. 4, f. 32. 
On dry banks and in old quarries, common near the sea, es- 
pecially on limestone ; rarerinland. We once met with a con- 
siderable number of them after a shower, on the banks of the 
Tyne, near Benwell, studding the trunk of a tree as high up as 
we could reach. 
26. H. vireata, Da Costa. 
Helix variabilis, Drap. Hist. Moll. 84, t. 5, f£ 11, 12. 
Helix virgata, Gray, Turt, Man. 160, t. 4, f 31. 
On plants in old quarries on road sides and sea banks, al- 
