Parasitic trophonts of Oodinium attached to fish skin, from here.

Belongs within: Dinoflagellata.

The Oodiniaceae are a group of dinoflagellates exhibiting an invasive parasitic stage (Fensome et al. 1993).

Characters (from Fensome et al. 1993): Parasitic trophont generally suboval to fusiform in outline, not exhibiting a typical dinoflagellate form; invasive organelle consisting of complex rhizoid-like absorptive structure; amphiesma usually pelliculate, occasionally tabulate. Reproduction by palintomic sporogenesis, with trophont detaching and its cytoplasm retracting from cell wall, dividing to produce numerous dinospores. Chromosomes decondensing during feeding stage, recondensing during palintomic sporogenesis. Cyst stage absent. Plastids occasionally present.

<==Oodiniaceae [Oodinidae]
    |--Crepidoodinium Lom & Lawlor in Lom 1981FT93
    |    `--C. cyprinodontumCC87
    |--Bargoniella Loeblich & Tappan 1961 (see below for synonymy)FT93
    |    `--*B. amylaceaFT93 (see below for synonymy)
    |--Piscinoodinium Lom 1981FT93
    |    |--P. limneticumCC87
    |    `--P. pillulare (Schäperclaus 1954) Lom 1981FT93
    `--Oodinium Chatton 1912 [incl. Branchiophilus Schäperclaus 1935]FT93
         |--O. acanthometraeCC87
         |--O. cyprinodinium Lawler 1967FT93
         |--O. dogieliCC87
         |--O. fritillariae Chatton 1912FT93
         |--O. ocellatumK-M02
         `--O. pouchetii (Lemmermann 1899) Chatton 1912FT93

Bargoniella Loeblich & Tappan 1961 [=Salpicola Bargoni 1894 non Richiardi 1880 (ICZN)/Bargoni ex Farr et al. 1979 (ICBN)]FT93

*Bargoniella amylaceaFT93 [=*Salpicola amylacea Bargoni 1894LT64, Amyloodinium amylaceumFT93, Oodinium amylaceum (Bargoni) Chatton 1920FT93]

*Type species of generic name indicated


[CC87] Cachon, J., & M. Cachon. 1987. Parasitic dinoflagellates. In: Taylor, F. J. R. (ed.) The Biology of Dinoflagellates pp. 571–610. Blackwell Scientific.

[FT93] Fensome, R. A., F. J. R. Taylor, G. Norris, W. A. S. Sarjeant, D. I. Wharton & G. L. Williams. 1993. A classification of living and fossil dinoflagellates. Micropaleontology Special Publication 7: i–viii, 1–351.

[K-M02] Klein-MacPhee, G. 2002. Porcupinefishes. Family Diodontidae. In: Collette, B. B., & G. Klein-MacPhee (eds) Bigelow and Schroeder’s Fishes of the Gulf of Maine 3rd ed. pp. 601–602. Smithsonian Institute Press: Washington.

[LT64] Loeblich, A. R., Jr & H. Tappan. 1964. Sarcodina: chiefly “thecamoebians” and Foraminiferida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt C. Protista 2 vol. 1. The Geological Society of America and The University of Kansas Press.

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