198 ANNULATA, 
IV.—LUMBRICUS. 
PHYLUM - ANNULATA (p. 237)- 
SuB-PHYIUM ANNELIDA (p. 238). 
Crass OLIGOCHATA (p. 239). 
Fig. 124.—THE CoMMON EARTHWORM 
(Lumbricus terrestris ). 
The darker end is anterior. 
The common earthworm has a shape and appearance 
familiar to all. A full-grown specimen may be eight or 
Aapivs nine inches long. The anterior end is usually 
"of a dark purple colour which becomes lighter 
further down the body to a dull pink. The animal lives in 
self-constructed burrows in the earth, though at times it 
emerges from these and creeps on the surface. 
