GREGARINE; GREGARINAE n.
An order of Protozoa, allied to the Rhizopoda, and parasitic in other animals, as in the earthworm, lobster, etc. When adult, they have a small, wormlike body inclosing a nucleus, but without external organs; in one of the young stages, they are amoebiform; -- called also Gregarinida, and Gregarinaria.…
LACUSTRAL; LACUSTRINE a.
Found in, or pertaining to, lakes or ponds, or growing in them; as, lacustrine flowers. Lacustrine deposits (Geol.), the deposits which have been accumulated in fresh-water areas. -- Lacustrine dwellings. See Lake dwellings, under Lake.