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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Caudiholosticha

Caudiholosticha Berger, 2003 (ref. ID; 4927 original paper)

[ref. ID; 4927]
Diagnosis; Urostylid hypotrichs with continuous adoral zone. Rearmost membranelles not wider than remaining membranelles of proximal portion. 3 enlarged frontal cirri. Buccal cirrus/cirri right of paroral. Frontoterminal cirri present. Midventral complex composed of midventral pairs only. Number of transverse cirri usually distinctly lower than number of midventral pairs. 1 left and 1 right marginal row. Anterior end of left marginal row +/- straight commences left of adoral zone. Caudal cirri present. Nuclear apparatus left of midline of scattered. (ref. ID; 4927)
Remarks; Caudiholosticha contains those Holosticha species which lack the apomorphies of Holosticha and which have caudal cirri. The presence/absence of this or other cirral groups is generally used to define genera, for example, Tachysoma (for review, see Berger 1999) or Paragonostomum (Foissner et al. 2002). I fix Holostica stueberi as type because this species is very well defined morphologically and the caudal cirri are rather distinct (Foissner 1987). The diagnosis is, due to the lack of apomorphies, only a combination of plesiomorphies indicating that the group is - like Anteholosticha - still heterogeneous. Non-monophyly is also indicated by the rather different shape of the undulating membranes, a feature successfully used to characterize oxytrichid genera (Berger and Foissner 1997). However, as in Anteholosticha, further splitting should be done only when monophyletic groups can be extracted. (ref. ID; 4927)
Etymology; Composite of the Latin noun caud.a (tail), the thematic vowel .i-, and the genus name Holosticha, indicating that the species included have caudal cirri and were previously classified in Holostica. Like Holosticha, feminine gender. (ref. ID; 4927)
Type species; Caudiholosticha stueberi (Foissner, 1987) n. comb. (basionym: Holostica stueberi Foissner, 1987) (ref. ID; 4927)
  1. Caudiholosticha algivora (Kahl, 1932) n. comb. (ref. ID; 4927)
  2. Caudiholosticha interrupta (Dragesco, 1966) n. comb. (ref. ID; 4927)
  3. Caudiholosticha islandica (Berger & Foissner, 1989) n. comb. (ref. ID; 4927)
  4. Caudiholosticha multicaudicirrus (Song & Wilbert, 1989) n. comb. (ref. ID; 4927)
  5. Caudiholosticha navicularum (Kahl, 1932) n. comb. (ref. ID; 4927)
  6. Caudiholosticha setifera (Kahl, 1932) n. comb. (ref. ID; 4927)
  7. Caudiholosticha stueberi (Foissner, 1987) n. comb. (ref. ID; 4927)
    Basionym; Holostica stueberi Foissner, 1987 (ref. ID; 4927)
  8. Caudiholosticha sylvatica (Foissner, 1982) n. comb. (ref. ID; 4927)
  9. Caudiholosticha tetracirrata (Buitkamp & Wilbert, 1974) n. comb. (ref. ID; 4927)
  10. Caudiholosticha viridis (Kahl, 1932) n. comb. (ref. ID; 4927)