the Rook, Starling and Chaffinch. 
37 
7. The Transparent Glass Bubble ( Vitrina pellucida, Muller.) 
This small glass-like snail is commonly eaten by the 
starling. It is usually found in shady places in moss, 
under stones and logs of wood, and amongst dead leaves. 
8. The Glassy Snail (Vitrea ( Polita ) nitidula, Drap.). 
A few specimens only were found. It lives in watery 
places for preference, but also occurs in woods and banks 
under moss, herbage and dead leaves, and is sometimes 
found some inches deep in loose soil. This snail lives 
on decayed leaves and moss. It does not appear to be of 
any economic importance. 
9. Vitrea ( Polita ) radiatula, Alder. 
A few specimens were found. 
10. Vitrea ( Polita ) Helvetica, Blum. 
Two specimens only were found. 
11. The Radiated Snail Shell ( Pyramidula (gonyodiscus) 
rotundata, Mull er) . 
This shy species, which occurs in abundance in moss and 
amongst dead leaves, under stones, logs and the bark of 
trees, is often devoured by the starling ; about 100 were 
found in the 748 birds. 
12. Jaminia muscerum, Linn. 
A single specimen only was found. This species occurs 
under dead leaves and stones, under the bark of trees, and 
on stones and rocks. 
13. The Varnished Twist Shell (Cochlicopa lubrica, Muller). 
This mollusc is fairly frequently eaten by starlings. 
About 130 specimens were found in the 748 examined. 
Of these 50 were found in February in 31 birds. It is an 
abundant species in fields, gardens, woods and hedgerows 
at the roots of grass, and amongst moss and dead leaves. 
It feeds on decayed vegetal and animal matter and will 
eat dead earthworms. It is of no economic importance 
as far as the writers know. 
14. The Trident Shell (Azeca tridens, Pulteney). 
A few of this species have been found in birds from 
Devon and elsewhere. It is found amongst herbage and 
in damp moss in woods. 
15. The Pigmy Whirl Snail (Vertigo ( Aloca ) pygmaea, 
Drap.). 
This very common species is occasionally eaten. It is 
found in marshes and on hills at the roots of grass and 
under stones and rubbish. 
