Haemamoeba is a subgenus of the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Plasmodium

Plasmodium

Plasmodium is a genus of parasitic protists. Infection by these organisms is known as malaria. The genus Plasmodium was described in 1885 by Ettore Marchiafava and Angelo Celli. Currently over 200 species of this genus are recognized and new species continue to be described.Of the over 200 known...

- all of which are parastic protozoa

Protozoa

Protozoa are a diverse group of single-cells eukaryotic organisms, many of which are motile. Throughout history, protozoa have been defined as single-cell protists with animal-like behavior, e.g., movement...

. The subgenus was created in 1963 by created by Corradetti et al.. Species

Species

In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 in this subgenus infect bird

Bird

Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...

s.

Diagnostic features

Species in the subgenus Haemamoeba have the following characteristics:

Mature schizonts are larger than the host cell

Cell (biology)

The cell is the basic structural and functional unit of all known living organisms. It is the smallest unit of life that is classified as a living thing, and is often called the building block of life. The Alberts text discusses how the "cellular building blocks" move to shape developing embryos....

 nucleus

Cell nucleus

In cell biology, the nucleus is a membrane-enclosed organelle found in eukaryotic cells. It contains most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these...

 and commonly displace it.

Gametocyte

Gametocyte

A gametocyte is a eukaryotic germ cell that divides by mitosis into other gametocytes or by meiosis into gametids during gametogenesis. Male gametocytes are called spermatocytes, and female gametocytes are called oocytes....

s are large, round, oval or irregular in shape and are substantially larger than the host nucleus.

Species in this subgenus

Plasmodium cathemerium

Plasmodium coggeshalli

Plasmodium coggeshalli

Plasmodium coggeshalli is a parasite of the genus Plasmodium subgenus Haemamoeba.Like all Plasmodium species P. coggeshalli has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium elongatum

Plasmodium gallinaceum

Plasmodium gallinaceum

Plasmodium gallinaceum is a species of the genus Plasmodium that causes malaria in poultry.- Description :...

Plasmodium giovannolai

Plasmodium lutzi

Plasmodium lutzi

Plasmodium lutzi is a parasite of the genus Plasmodium.Like all Plasmodium species P. lutzi has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium matutinum

Plasmodium paddae

Plasmodium paddae

Plasmodium paddae is a parasite of the genus Plasmodium subgenus Haemamoeba.Like all Plasmodium species P. paddae has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....

Plasmodium parvulum

Plasmodium relictum

Plasmodium tejerai

Plasmodium tejerai

Plasmodium tejerai is a parasite of the genus Plasmodium subgenus Haemamoeba.Like all Plasmodium species P. tejerai has both vertebrate and insect hosts. The vertebrate hosts for this parasite are birds....