(called cilia), by means of which the animalcules swim through the water or convey the minute particles of their food to the orifice of the mouth.

INSECTIVOROUS. — Feeding on insects.

INVERTEBRATA, or INVERTEBRATE ANIMALS. — Those animals which do not possess a backbone or spinal column.

LACUNAE. — Spaces left among the tissues in some of the lower animals and serving in place of vessels for the circulation of the fluids of the body.

LAMELLATED. — Furnished with lamellae or little plates.

LARVA (pl. LARVAE). — The first condition of an insect at its issuing from the egg, when it is usually in the form of a grub, caterpillar, or maggot.