''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the

red blood cells Red blood cells (RBCs), also referred to as red cells, red blood corpuscles (in humans or other animals not having nucleus in red blood cells), haematids, erythroid cells or erythrocytes (from Greek language, Greek ''erythros'' for "red" and ''k ...

. ''Haemogregarina'' infects lower vertebrates (fish and reptiles) as intermediate hosts and leeches (as definitive hosts).

History

It was described in 1885 by Danilewsky from the European pond turtle (''

Emys orbicularis The European pond turtle (''Emys orbicularis''), also called commonly the European pond terrapin and the European pond tortoise, is a species of long-living freshwater turtle in the family Emydidae. The species is endemic to the Western Palearc ...

'').

General description

These parasites are generally considered non-pathogenic, and have been described in the red blood cells of desert tortoises. They are elongate to fusiform oval organisms found in the red blood cells. Although the size varies, they are larger than the cell's nucleus. The organism stains a basophilic colour and has a surrounding clear zone.

Species

The following species are recognised: *'' Haemogregarina acanthoclini'' Laird, 1953 *'' Haemogregarina anarhichadis'' Henry, 1912 *'' Haemogregarina balistapi'' *'' Haemogregarina bettencourti'' França, 1908 *'' Haemogregarina bigemina'' Laveran & Mesnil, 1901 *'' Haemogregarina blanchardi'' Brumpt & Lebailly, 1904 *'' Haemogregarina bothi'' Lebailly, 1905 *'' Haemogregarina carchariasi'' Laveran, 1908 *'' Haemogregarina clavata'' Neumann, 1909 *'' Haemogregarina coelorhynchi'' Laird, 1952 *'' Haemogregarina cotti'' Brumpt & Lebailly, 1904 *''

Haemogregarina curvata ''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the red blood cells. ''Haemogregarina'' infects lower vertebrates (fish and reptiles) as inter ...

'' Hayes, Smit, Seddon, Wertheim & Davies, 2006 *'' Haemogregarina dakarensis'' Léger & Leger, 1920 *'' Haemogregarina dasyatis'' Saunders, 1958 *'' Haemogregarina delagei'' Laveran & Mesnil, 1901 *'' Haemogregarina gobii'' Brumpt & Lebailly, 1904 *'' Haemogregarina gobionis'' Franchini & Saini, 1923 *'' Haemogregarina hartochi'' Kohl-Yakimoff & Yakimoff, 1915 *'' Haemogregarina hemiscyllii'' Mackerras & Mackerras, 1961 *'' Haemogregarina heterodontii'' von Prowazek, 1910 *''

Haemogregarina hoplichthys ''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the red blood cells. ''Haemogregarina'' infects lower vertebrates (fish and reptiles) as inter ...

'' Laird, 1952 *''

Haemogregarina johnstoni ''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the red blood cells. ''Haemogregarina'' infects lower vertebrates (fish and reptiles) as inter ...

'' Davis & Merrett, 2000 *''

Haemogregarina koppiensis ''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the red blood cells. ''Haemogregarina'' infects lower vertebrates (fish and reptiles) as inter ...

'' Smit & Davies, 2001 *''

Haemogregarina laternae ''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the red blood cells. ''Haemogregarina'' infects lower vertebrates (fish and reptiles) as inter ...

'' Lebailly, 1904 *''

Haemogregarina leptocotti ''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the red blood cells. ''Haemogregarina'' infects lower vertebrates (fish and reptiles) as inter ...

'' Hill & Hendrickson, 1991 *''

Haemogregarina leptoscopi ''Haemogregarina'' is a genus of haemoprotozoans, parasitic mainly on cold-blooded vertebrates. They are unicellular organisms which are parasitic in the red blood cells Red blood cells (RBCs), also referred to as red cells, red blood corpusc ...

'' Laird, 1952 *'' Haemogregarina lobiani'' Yakimov & Kohl-Yakimov, 1912 ''emend'' Levine, 1985 *'' Haemogregarina londoni'' Yakimov & Kohl-Yakimov, 1912 *'' Haemogregarina marzinowskii'' Yakimov & Kohl-Yakimov, 1912 *'' Haemogregarina mavori'' Laird & Bullock, 1969 *'' Haemogregarina minuta'' Neumann, 1909 *'' Haemogregarina myoxocephali'' Fantham, Porter & Richardson, 1942 *'' Haemogregarina parmae'' Mackerras & Mackerras, 1925 *'' Haemogregarina platessae'' Lebailly, 1904 *'' Haemogregarina polypartita'' Neumann, 1909 *'' Haemogregarina quadrigemina'' Brumpt & Lebailly, 1904 *'' Haemogregarina roelofsi'' Hill & Hendrickson, 1991 *'' Haemogregarina rubrimarensis'' Saunders, 1960 *'' Haemogregarina sachai'' Kirmse, 1978 *'' Haemogregarina salariasi'' Laird, 1951 *'' Haemogregarina scorpaenae'' Neumann, 1909 *'' Haemogregarina simondi'' Laveran & Mesnil, 1901 *'' Haemogregarina tetraodontis'' Mackerras & Mackerras, 1961 *'' Haemogregarina torpedinis'' Neumann, 1909 *'' Haemogregarina wladimirovi'' Yakimov & Kohl-Yakimov, 1912 *'' Haemogregarina yakimovikohli'' Wladimiroff, 1910 ''emend'' Levine, 1985

References

Apicomplexa genera {{Apicomplexa-stub