A search that checks against common names and lexical variants.
Example: A search for "Pomatomus saltator" will check presence in the tree of "Pomatomus sallatrix", "Pomatomus saltator", or "Pomatomus saltatrix".
A search that checks against common names and lexical variants and homotypic variants.
Example: A search for "Pomatomus saltator" will check presence in the tree of "Cheilodipterus saltatrix", "Gasterosteus saltatrix", "Pomatomix saltatrix", "Pomatomus sallatrix", "Pomatomus saltator", "Pomatomus saltatrix", or "Temnodon saltator".
Description of Paramecium bursaria: Cell foot-shaped rather than elongate, the anterior is transversely truncated, the posterior rounded. Attains 80-150 microns long. The oral groove is very wide for most of its length. This species is easily recognised by the presence of green zoochlorellae in the cytoplasm. There are two contractile vacuoles with radiating collecting canals. There is a single, ovoid macronucleus and one elliptical micronucleus.
