40 CATALOGUE OF THE MOLLUSCA 



In moss and under stones, rather rare. Walbottle Dean, Cas- 

 tle Eden, and sea banks at Cullercoats. — J. A. Near Ridley 

 Hall. — Mr. J. Thompson. Sea banks near Ryhope. — Mr. R. 

 Howse. " Near Twizell House." — Broivns Illust. Rec. Conch. 



34. VERTIGO, Muller. 



1. V. CTLINDRICA, Fer. 



Pupa muscorum, Drap. Hist. Moll. 59, t. 3, f. 26, 27. 

 Vertigo cylindrka, Gray, Turt. Man. 200, t. 12, f. 140. 

 This rare species has lately been added to our local list by 

 Mr. R. Howse, who has found several specimens at the roots of 

 grass on a bank at Claxheugh, Bishop Wearmouth. 



The animal is pale transparent gray, with two black lines 

 along the back : in other respects agreeing with the character of 

 the genus. 



2. V. EDENTULA, DrCip. 



Vertigo ede^itula, Gray, Turt. Man. 199, t. 7, f. 80. 

 Among grass and under dead leaves in woods, frequent. We 

 once met with this species in great abundance, by sweeping the 

 long grass in Castle Eden Dean, Avith a hand net, after a shower 

 of rain ; in dry weather they lie under dead leaves and moss. 



3. V, PTGM^A, Drap. 



Vertigo pygmcea, Gray, Turt. Man. 201, t. 7, £ 83. 

 Under stones and on old walls, generally in dry situations ; 

 not rare. 



4. V. ALPESTBis (Fer. MS.), Alder. 



Vertigo alpestris, Aid. in Newc. N. H. Trans, ii. 340 ; Gray, 

 Turt. Man. 202, t. 12, f 141. 

 On an old wall near Lipwood House. — Mr. J.Thompson. 



5. V. PALUSTRis (Leach J, Jeff. 



Vertigo palustris, Gray, Turt. Man. 204, t. 7, £ 85. 

 In marshy places, rare. In a bog near Darlington. — Mr. W. 

 Backhouse. Sea banks near Ryhope. — Mr. R. Howse. " Near 

 Twizell House." — Capt. Brown, Illust. 



6. V. SUBSTRIATA, Jeff. 



Pupa sexdentata, Aid. in Newc. N. H. Trans, i. 34. 

 Vertigo suhstriata, Gray, Turt. Man. 202, t. 7, f 84. 



