Monocystis

Monocystis
Scientific classification
Domain:	Eukaryota
(unranked):	Sar
(unranked):	Alveolata
Phylum:	Apicomplexa
Class:	Conoidasida
Subclass:	Gregarinasina
Order:	Eugregarinorida
Suborder:	Aseptatorina
Family:	Monocystidae
Subfamily:	Monocystinae
Genus:	Monocystis

Monocystis (Gr., monos, single + kystisis, bladder) is a genus (the type of the family Monocystidae) of acephaline gregarines (subclass Gregarinasina) not having the protoplasm divided into segments by septa and including internal parasites of invertebrates (as M. agilis of the reproductive system of earthworms).^[1]