''Prymnesium'' is a genus of

haptophyte The haptophytes, classified either as the Haptophyta, Haptophytina or Prymnesiophyta (named for '' Prymnesium''), are a clade of algae. The names Haptophyceae or Prymnesiophyceae are sometimes used instead. This ending implies classification at ...

s, including the

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

'' Prymnesium parvum''. The genus is a unicellular motile alga. It is ellipsoidal in shape one flagellum is straight and there are two longer ones which enable movement. The name Latinizes the Greek ' ‘cable (for

mooring A mooring is any permanent structure to which a seaborne vessel (such as a boat, ship, or amphibious aircraft) may be secured. Examples include quays, wharfs, jetties, piers, anchor buoys, and mooring buoys. A ship is secured to a mooring to ...

)’, from ' ‘stern’, from ' ‘hindmost’. ''Prymnesium'' was likely first recognized and drawn (although not named as such) on July 1, 1920, and then (seemingly independently) officially named shortly afterwards on July 6, 1920.

Morphology

Species

The taxonomy of

Prymnesiales Prymnesiales is an order of Haptophyceae. It currently consists of three families: * Prymnesiaceae * Chrysochromulinaceae * Chrysoculteraceae References

Haptophyte orders Haptista orders {{Haptophyte-stub ...

was revised in 2011. With this revision, ten additional species were added to the genus, namely '' P. neolepis'' (previously assigned to '' Hyalolithus''), '' P. palpebrale'', '' P. polylepis'', '' P. kappa'', '' P. chiton'', '' P. minus'' (previously assigned to '' Chrysochromulina''), '' P. neustophilum'', '' P. pienaarii'', '' P. pigrum'', and '' P. simplex'' (previously assigned to '' Platychrysis''). * '' Prymnesium neolepis'' (=''Hyalolithus neolepis'') * ''

Prymnesium palpebrale ''Prymnesium'' is a genus of haptophytes, including the species ''Prymnesium parvum''. The genus is a unicellular motile alga. It is ellipsoidal in shape one flagellum is straight and there are two longer ones which enable movement. The name Lat ...

'' (=''Chrysochromulina palpebralis'') * '' Prymnesium polylepis'' (=''Chrysochromulina polylepis'') * ''

Prymnesium kappa ''Prymnesium'' is a genus of haptophytes, including the species '' Prymnesium parvum''. The genus is a unicellular motile alga. It is ellipsoidal in shape one flagellum is straight and there are two longer ones which enable movement. The name La ...

'' (=''Chrysochromulina kappa'') * '' Prymnesium chiton'' (=''Chrysochromulina chiton'') * '' Prymnesium minus'' (=''Chrysochromulina minor'') * '' Prymnesium neustophilum'' (=''Platychrysis neustophila'') * '' Prymnesium pienaarii'' (=''Platychrysis pienaarii'') * '' Prymnesium pigrum'' (=''Platychrysis pigra'') * '' Prymnesium simplex'' (=''Platychrysis simplex'')

References

Haptophyte genera {{Haptophyte-stub