56 
PHYLLIVORA. 
found it in a garden at Lambeth. When the animal 
deposits its eggs, the head and tentacles are drawn 
in. See fig. 16. 5, c, from Mag. Nat Hist \\\, 226. 
f. 39., exhibiting the animal in its different positions. 
In winter, they bury themselves from one to two 
feet deep in the earth, and are most above the sur- 
face from August to November. They chiefly live 
on worms, and sometimes will attack slugs and 
smaller specimens of their own species; shells of 
their own kind being sometimes found in their 
stomach. 
The Testacella scutulum of Sowerby and Testa- 
cellus Medii Templi of Mr. Tapping are very slight 
varieties of the common species. 
Testacellus Mangel has a more developed shell, 
the lateral grooves far apart in front of the shell, 
and only 15 longitudinal series of teeth on the 
tongue. 
Sub-division 2. Phyllivora. — Mouth simple ; jaws 
distinct, horny ; teeth numerous, four-sided, close 
together, side by side, with a reflexed toothed 
apex ; head tentacle and eye peduncles retractile 
under the skin. Eyes at the apex of the club of 
the peduncle. Herbivorous. 
The following account, of the teeth is abridged 
from an elaborate paper by Mr. William Thompson 
in Ann. and Mag. N. Hist 51. 86. ; from which also 
the figures are taken : — 
The tongue of the Phyllivora^ generally, is a 
thin expansible membrane, two thirds or three 
