Mesorhabditis

Mesorhabditis is a genus of nematodes.

Mesorhabditis
Scientific classification
Kingdom:	Animalia
Phylum:	Nematoda
Class:	Chromadorea
Order:	Rhabditida
Family:	Rhabditidae
Genus:	Mesorhabditis Osche, 1952
Species
Mesorhabditis acris Mesorhabditis ansisomorpha Mesorhabditis acidophila Mesorhabditis belari Mesorhabditis irregularis Mesorhabditis longespiculosa Mesorhabditis minuta[1] Mesorhabditis oschei Mesorhabditis spiculigera
Synonyms
Bursilla Andrássy, 1976

Species in the genus Mesorhabditis exhibit an unusual form of parthenogenesis, in which sperm-producing males copulate with females, but the sperm do not fuse with the ovum. Contact with the sperm is essential for the ovum to begin dividing, but because there is no fusion of the cells, the male contributes no genetic material to the offspring, which are essentially clones of the female.