226 
HISTORY OF BRITISH CRUSTACEA. 
them (the Apseudidee) have the first pair of legs ending in 
a two-clawed hand, while in the others ( Limnoriadee ) the 
first pair of legs resembles the others. 
Gen. 110. APSEUDES, Leach. 
Body elongated, depressed, nearly of same breadth through- 
out. Pirst pair of antennae short, slender, with many-jointed 
thread at end; second pair outside the first, thick and 
rather long ; peduncle of four joints, succeeded by a many- 
jointed thread ; the first pair of legs short, with a large 
swollen hand ; second pair wide, flattened, spiny, and appa- 
rently adapted for digging ; the five last pair slender. Ab- 
domen ending in two long threads. 
Apseudes talpa, Montagu, sp. Mole Hog-louse . — Yel- 
lowish-white. Head pointed. First five segments of ab- 
domen very hairy on the sides, the last as large as all the 
others taken together. 
Coast of Devon (Salcombe) . It was first observed there 
by Colonel Montagu, who remarked that the two long 
caudal setse are capable of closing together instantaneously. 
It is about four lines long. 
