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Scientific classification
Domain: Eukaryota
(unranked): SAR
(unranked): Alveolata
Phylum: Perkinsozoa
Class: Perkinsea
Order: Perkinsida
Family: Perkinsidae
Levine, 1978

2, see text

Perkinsidae is a family of alveolates in the phylum Perkinsozoa, a sister group to the dinoflagellates.


It includes Perkinsus species, which are parasitic protozoans, some of which cause disease and mass mortality in wild and farmed molluscs such as oysters.

There are two genera:[1]


Perkinsidae possess plastids which do not contain DNA.[3]


  1. ^ Guiry, M. D. & G. M. Guiry. 2013. Perkinsidae. AlgaeBase. National University of Ireland, Galway. Accessed 07 September 2013.
  2. ^ Hoppenrath, M.; Leander, B. S. (2009). "Molecular phylogeny of Parvilucifera prorocentri (Alveolata, Myzozoa): Insights into perkinsid character evolution" (PDF). Journal of Eukaryotic Microbiology. 56 (3): 251–56. doi:10.1111/j.1550-7408.2009.00395.x. 
  3. ^ Matsuzaki, M; Kuroiwa, H; Kuroiwa, T; Kita, K; Nozaki, H (June 2008). "A cryptic algal group unveiled: a plastid biosynthesis pathway in the oyster parasite Perkinsus marinus.". Molecular Biology and Evolution. 25 (6): 1167–79. PMID 18359776. doi:10.1093/molbev/msn064.