A generic revision of the Phallodrilinae (Oligochaeta, Tubificidae)

@article{Ersus1992AGR,
  title={A generic revision of the Phallodrilinae (Oligochaeta, Tubificidae)},
  author={Christer Ers{\'e}us},
  journal={Zoologica Scripta},
  year={1992},
  volume={21}
}
  • C. Erséus
  • Published 1 January 1992
  • Biology
  • Zoologica Scripta
The generic classification of the subfamily Phallodrilinae (with a total of 252 species) is revised according to phylogenetic principles. Morphological character patterns are assessed under the principle of maximum parsimony, but due to the poor resolution and instability in the resulting cladograms, the analysis is supplemented with intuitive weighting of synapomorphic similarities. Thirty‐one genera are recognized. The former definition of the type genus Phallodrilus Picrantoni, 1902, is… 
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TLDR
The gutless members of the subfamily Phallodrilinae are taxonomically revised and generically split off from their gut‐bearing relatives and a tentative phylogeny of the gutless group, which appears monophyletic, is inferred on the basis of a partly computerized Wagner‐tree analysis of all 38 species.
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TLDR
The new meiobenthic genus Jamiesoniella is characterized by having simple atria with only one pair of prostate glands, which are attached to ectal parts of atria, and by lacking spermathecae and penial setae.
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TLDR
The taxonomy and morphology of the different species, including B. rarisetis (Erséus, 1975) comb, are discussed, which appears closely related to Phallodrilus Pierantoni, 1902, from which it is distinguished principally by differences in the relative positions of the vasa deferentia, the atria and the prostate glands.
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TLDR
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TLDR
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TLDR
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TLDR
A hypothesis of phylogenetic relationships within the family Tubificidae is presented, based on a Wagner analysis of morphological characters in the different subfamilies, supported by a synapomorphic ability to form slender spermatozeugmata in the spermathecae.
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