396 Mr. Jerrreys on the Testaceous Pneumonobranchous 
Genus H. VITRINA. Drap. 
Animal redundans : pallii processu spire partem obtegente. 
esta depresso-conica, fragilissima : spirá obliqua; anfractu 
ultimo valdé maximo: aperturá oblique lunata, mar- 
ginibus dispunctis. 
> 
1. MüLLERI. 
Animal albo-cinereum. Sustentaculum perangustum cras- 
sum. Pallii processus albus. 
Testa orbiculata, utrinque convexa, hyalina, politissima, 
 subvirescenti-alba. Anfractus3. Apertura subrotundo- 
lunata. 
Long. 0.125.— Diam. 0.175. 
Helix pellucida. Müll. Verm. p. 16. 
La Transparente. Geoff. p.38. t. 2? 
a. Globosa; spirá prominula. 
In moist woods, in autumn, on the Jungermannia platy- 
phylla (on which the animal feeds); and under decaying 
leaves. ‘The shell differs from the following in the spire 
being more central and produced, and in the form of the 
aperture, which is slightly angular near the insertion of the 
.columellar border. ‘The size of the animal is also not so 
disproportionately = 
Pros MT MESE 
2. DRAPARNALDI: 
Animal griseum, testam valde superans.  Sustentaculum 
permagnum. 
Testa depressior, spirá parüm exsertá laterali, perlucida,[sub- 
iridis. Anfractus 3. Apertura ampla, elliptico-lunata. 
= -  — Long. 0.135.— Diam. 0.25. 
T bine pellucida. | rer Hist. des Moll. p. 119. t. 8. 
Ue — 
Plentifully 
du XR SL E e 
