314 Mr. Jerrreys on the Testaceous Pneumonobranchous 
in Schroter’s Flusskonchylien. A specimen in Mr. Dill- 
wyn's cabinet, and which, if I mistake not, he said was also 
from the locality above mentioned, is named in Col. Mon- 
tagu's handwriting as both Helix auricularia and H. lutea. 
à. PEREGER. 
Animal colore varians, plerumque flavo-maculatum. Ten- 
tacula flexilia. Testa ovato-oblonga, subventricosa, 
glabra, lutescens, seepé limo foedata, spirá acutá. An- 
fractus 4—5. Apertura ovata. 
Long. 0.65.— Diam. 0.325. 
Limneus pereger. Drap. Hist. des Moll. p. 50. t. 2. 
f. 34—37. 
Buccinum peregrum. Müll. Verm. 2. p. 130. 
Helix putris. Penn. Brit. Zool. 4. p. 139. t. 86. f. 137. 
peregra. Gmel. Syst. Nat. 1. p. 3659. Mont. 
Test. Brit. p. 373. t. 16. f. 3. 
a, major, subovata ; spirá brevi, acuta. 
Limneus ovatus. Drap. Hist. des Moll. p.50. t. 2. f.30, 
| 31. 
8. ovata; peristomio reflexo, subincrassato. 
% ovalis, ampullacea ; spira vix exsertà. 
Helix lutea. Mont. Test. Brit. p. 380. t. 16. f. 6. 
` à. minor, oblongiuscula ; spirà acuta, sutura obliqua. 
Common every where in ditches, ponds, &c. It is ex- 
ceedingly variable in size ; some of the variety a. from Ire- 
land exceeding an inch and a quarter, while few specimens 
of the variety 6. attain a quarter of an inch in length. Young 
E shells. of the varieties B. and y. are remarkably ampul- 
T x no hesitation i in aing the Helix lutea of Mon- 
tagu 
