Aquatic Oligochaete Biology 1980
DOI: 10.1007/978-1-4613-3048-6_2
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Specific and Generic Criteria in Marine Oligochaeta, with Special Emphasis on Tubificidae

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1982
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Cited by 11 publications
(3 citation statements)
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“…By removing several gutless species from the otherwise gut-bearing genera Phallodrilus and Coralliodrilus, an unconventional principle for the generic classification of Tubificidae has been applied; the configuration of the male efferent duct (cf., for example, Erseus 1980) is no longer used as the prime generic criterion. The evolution of a phallodriline group completely devoid of an alimentary canal can, because of the great species diversity newly discovered, be regarded as a phylogenetic event of great classificatory relevance.…”
Section: Discussionmentioning
confidence: 99%
“…By removing several gutless species from the otherwise gut-bearing genera Phallodrilus and Coralliodrilus, an unconventional principle for the generic classification of Tubificidae has been applied; the configuration of the male efferent duct (cf., for example, Erseus 1980) is no longer used as the prime generic criterion. The evolution of a phallodriline group completely devoid of an alimentary canal can, because of the great species diversity newly discovered, be regarded as a phylogenetic event of great classificatory relevance.…”
Section: Discussionmentioning
confidence: 99%
“…This includes the frequent association of particular criteria to different ranks in the classification. For instance, for a long time certain kinds of features were conceived as familial, others as subfamilial, yet others as generic 'criteria' (see, e.g., Erse´us, 1980;Kasprzak, 1984b). (4) The narratives leading to the intuitive hypotheses sometimes stress the adaptive value of the assumed transformation of various character states.…”
Section: From Scenario To Formal Analysismentioning
confidence: 99%
“…The shape and arrangement of the penial chaetae, which are fundamental characters in naidid taxonomy in general (Erséus ), and in the taxonomy of the subfamily Phallodrilinae in particular (Erséus ), also exhibits convergence in our tree. Many Heterodrilus species have two large penial chaetae per bundle, and these chaetae are arranged in a ‘V‐shaped’ formation (i.e.…”
Section: Discussionmentioning
confidence: 94%