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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Pachystomos

Pachystomos Rudzinska, 1952 (ref. ID; 2014)

Class Oligohymenophora: Subclass Peritricha: Order Peritrichida: Suborder Sessilina (ref. ID; 2014)

[ref. ID; 2014]
Approximately globular body with conspicuously ciliated apical region (peristome?) and two pseudopodial-like posterior projections. The 2 projections enable the animal to slide along the substratum. A very rare genus which has only been reported on one occasion in North America.
Quote; Colin R. Curds, Michael A. Gates and David McL. Roberts "British and other freshwater ciliated protozoa Part II Ciliophora: Oligohymenophora and Polyhymenophora" Cambridge University Press, 1983 (ref. ID; 2014)