Volvox globator

"Volvox globator" is a species of green algae of the genus "Volvox". It was originally described by Carl Linnaeus in his 1758 work "Systema Naturae". In 1856 its sexuality was described by Ferdinand Cohn and is the same as "Sphaeroplea" "annulina". It is colonial flagellate found in freshwaters.