Zoothamnium cf. alternans Claparède & Lachmann, 1859

Zoothamnium Bory de St. Vincent, 1826

Ciliophora: Oligohymenophorea: Sessilida: Zoothamniidae

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20x Plan Apo / 20x Plan Fluor / 40x Plan Fluor / 60x Plan Fluor. DIC / Phase Contrast. Sampled in Bay of Santander. August, 4th 2017.

 

Diagnostic features (Zoothamnium)
Colonial. The stalk contracts in a zigzag fashion, not spirally.  The myoneme is continuous throughout the colony.

 

 

References
Boltovskoy, D. (ed.) (1999). South Atlantic Zooplankton, 2 Vol. Backhuys Publishers. Leiden. (see p. 309 fig 8.33 for Zoothamnium elegans).
D’ Udekem (1864). Description des infusoires de la Belgique. Première Série. Les vorticellines. Mémoires de LÁcadémie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique. Tome XXXIV. Bruxelles. .
Kahl, A. (1935). Tierwelt Deutschlands und der angrenzenden Meeresteile. Urtiere oder Protozoa. I: Wimpertiere oder Ciliata (Infusoria). 4 Peritricha und Chonotricha. Verlag von Gustav Fischer. Jena.
Larink, O. & Westheide, W. (2011). Coastal plankton. Verlag Dr. Friedrich Pfeil. München. (see Plate 15 for Zoothamnium alternans).

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