Protista

The phylum Sarcomastigophora belongs to the Protista or protoctista kingdom and it includes many unicellular or colonial, autotrophic, or heterotrophic organisms.

A flagellate is a cell or organism with one or more whip-like organelles called flagella.

Heliozoa, commonly known as sun-animalcules, are microbial eukaryotes (protists) with stiff arms (axopodia) radiating from their spherical bodies, which are responsible for their common name.

Kraken is a genus of amoebae within the Cercozoa.

common in freshwater and soil, one marine species is known.

Kiitoksia is a genus of aquatic protozoa.

Pseudocollinia brintoni is a species of parasitoid ciliate of the Colliniidae family.

The Foettingeriidae are a family of apostome ciliates of the order Apostomatida.

Codonosigidae is a Choanoflagellate family.

Collinia oregonensis is a species of parasitoid ciliate of the Colliniidae family.

Collinia beringensis is a species of parasitoid ciliate of the Colliniidae family.

Cyrtocaryidae is a family of ciliate protozoa of the order Apostomatida.

The Apostomatida are an order of ciliate protozoa of the class Oligohymenophorea.

Choanozoa (Greek: χόανος (choanos) = "funnel" + ζῶον (zōon) = "animal") is the name of a phylum of protists that belongs to the line of opisthokonts.

Hemolivia (also spelled Haemolivia) is a genus of the phylum Apicomplexia.

Filasterea is a grouping that includes Ministeria and Capsaspora.

Haemoproteus plataleae is a species of parasitic protozoa that infects ibises and spoonbills.

Colliniidae is a family of ciliate protozoa of the order Apostomatida.

Eugène Penard was a Swiss biologist and pioneer in systematics of the amoebae.

Corallochytrium is a single-celled eukaryote which was found in coral reef lagoons of the Lakshadweep islands of the Arabian sea.