Mollusca of Great Britain. iL ahh 28% 
Plentifully towards the end of autumn at the roots of the 
Rosa spinosissima, on the Swansea Burrows. 
3. DEPRESSA. 
Animal 
Testa depressa, lentissimé et irregulariter rugosa, albida. 
Anfractus 2, vix 3. Apertura lunata. 
Long. 0.065.— Diam. 0.145. 
As yet I have only found two dead specimens from 
Britonferry wood near Swansea. In its general contour 
this more nearly resembles the true Helices than any of the 
preceding ones. It is whitish, and has not much of the 
pellucidity and glossiness characteristic of its genus. The 
last volution is not so proportionally large and swollen, 
and the spire is in consequence more central. — 
4. ELONGATA. 
4 nimal elongatum, panepen entemdni pur fere 
Ponta. ae Hes | : 
Testa globosa, s. próminuli pom DP wm vix 2. 
Apertura ovato-lunata. 
Long. 0.085. — Diam. 0.15. 
Vitrina elongata. Drap. Hist. des Moll. p. 102. t. 8. 
f. 40. 
From Britonferry wood, near Swansea ; very rare. 
cept in the fewer volutions and less orbicular form, (cha- 
. racters which do not alter with the growth of the shell,) 
entation of this shell ; is very incor- 
has he better succeeded in his figures of ae V. diaphan: 
rect, and byn no means agrees with his description. Nor — 
