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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Pseudokahliella

Pseudokahliella Berger, Foissner & Adam, 1985 (ref. ID; 7751 redescribed paper)

[ref. ID; 7751]
Diagnosis; Kahliellidae with an evolved frontal ciliature and numerous self-replicating somatic ("right marginal") cirral rorws. (ref. ID; 7751)
Remarks; Both morphological and morphogenetic data demonstrate Parakahliella and Pseudokahliella to be in the kahliellid lineage "which includes all genera of the hypotrich suborder Stichotrina the species of which lack transverse cirri and show an untwisted meridional arrangement of the somatic row" (Tuffrau 1979). Parakahliella is easily distinguishable from all other genera of this family by the character pair "caudal ciri and two or more left and right marginal rows" (Horvath 1932; Kahl 1932; Corliss 1979; Foissner 1982, 1983). Jerka-Dziadosz amd Banaczyk (1983) described a variable number of left marginal rows in clone of Paraurostyla weissei crossed in the laboratory. This aberation could be an argument against the use of the diagnostic feature "number of marginal rows". However, the observations on the morphogenesis and the biometrical analysis show that this character is very stable in natural populations. The monotypical genus Pseudokahliella is characterized unequivocally by a clearly differentiated frontal ciliature and a high dominance of the somatic cortical pattern. The former attribute separated it from Parastrongylidium Fleury and Fryd-Versavel, 1984, and the latter one from other related genera. The plagiotomid morphogenetic pattern implies and ancestral position within the Kahliellidae and hence a close relationship to "non-hypotrichs". (ref. ID; 7751)
Type species; Pseudokahliella marina (Foissner et al., 1982) nov. comb. (Kahliella marina Foissner et al., 1982)
  1. Pseudokahliella marina (Foissner, Adam & Foissner, 1982) Berger, Foissner & Adam, 1985 (ref. ID; 7423, 7751)
    Basionym; Kahliella franzi (ref. ID; 7423)