Li? GLOSSARY. 
libéllula, named after a dragon-fly (Zzbe//u/a). 
Zigament, the elastic substance connecting the valves of a 
bivalve shell. 
Lilacina, lilac. 
Limax, a slug. 
Limnea, inhabiting stagnant water. 
pas | marked with lines. 
lingual dentition, the arrangement of teeth on the tongue 
of a mollusk. 
Zip, the lip of a shell is the edge of the mouth. 
longiscéta, lengthened. 
libriciides, somewhat smooth. 
luctuosa, of a sad (¢.e. dingy) colour. 
4uinule, the oval depressed space in front of the umbones, 
and opposite the ligament of some bivalves.’ 
lutea, yellowish. 
liteofascidta, banded with yellow. 
liteolabidta, yellow lipped. 
M. 
maculata, 
miégna, large. 
major, larger. 
mantle, a flexible outgrowth of the body, resembling a 
cloak or hood, which contains glands that secrete the 
colouring matter of the shell. 
