OF XORTIIUMBERLAXD AN'D OrRHAM. 37 



22. H. PYGM^A, Drap. 



Zonites pygm(Bus, Gray, Turt. Man. 167, t. 5, f. 46. 

 Under decayed leaves in woods, not uncommon. 



23. H. RupESTRis, Drap. 



Helix umhilicata, 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 Abbe 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 Xaturelle des Mollusques, &c.," in 1805. 



24. H. ROTUXDATA, Midi. 



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, Jlont. 



Helix striata, Drap. Hist. Moll. 106, t. 6, f 18-21 (not 



Muller). 

 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 ; rarer inland. 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. viRGATA, 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- 



