CEtrSTAOEA. 
125 
the ground, and generally congregates in numbers. It feigns 
death, but does not roU itself up in the least. 
Philougria eosea. —iTocA, Beutsch Crust., 22, 16 . — Bate ani 
Westwood, p. 460. 
It is tolerably abundant in gardens in Plymouth. This is the 
only habitat yet known in England. We have little doubt but 
that it only has to be looked for in Cornwall to be found. It is 
of a pretty rosy colour, and may be found in garden pots and 
crevices of the yards. 
Genus, Onisous. — Brnncem. 
Head with large lateral lobes. Second antennae eight-jointed ; 
second joint detailed at the base. Tail appendage imbranched 
short. 
Oniscus asellus.— im. Si/sf. Nat., ii, p. 106\.— Bate and West- 
wood, p. 468. 
Common throughout England, Scotland, and Ireland, under 
decaying vegetable and animal matter. Common near the sea. 
Genus, Poecellio. — Latrielle. 
Second antennae seven jointed. Tail appendage with outer 
branch trigonate, exposed ; inner, small and concealed. 
PoRCEELio scABEE. — Latrielle, Mist. Nat. Crust, et Ins., vii, p. 45. 
— Bate and Westwood, p. 475. 
This species runs with agility, and partially rolls itself into a 
ball when alarmed. It has been observed feeding on living 
caterpillars ; frequenting moist places where decaying vegetation 
is found, also among sea-weed with Ligia. It is partial to grow- 
ing vegetables, and enjoys ripe fruit. Common throughout 
England and Ireland. 
I have little doubt but that most, if not all the British species 
might be found in Cornwall if they were looked for. 
Genus, Aemadillo. — Latrielle. 
Very convex. Capable of rolling itself into a baU. Second 
antennm seven-jointed. Tail appendages not reaching beyond 
fbe margin of the body. 
A.RMADIILO VULGARIS. — Latrielle, Mist. Nat. Crust, et Ins., vii, p. 
48 . — Bate and Westwood, p. 492. 
