Evolution and biogeography of megadriles (Annelida, Clitellata)

@article{Omodeo2000EvolutionAB,
  title={Evolution and biogeography of megadriles (Annelida, Clitellata)},
  author={P. Omodeo},
  journal={Italian Journal of Zoology},
  year={2000},
  volume={67},
  pages={179 - 201}
}
  • P. Omodeo
  • Published 2000
  • Biology
  • Italian Journal of Zoology
Abstract The evolution of megadriles is analysed employing the traditional comparative method supplemented with palaeogeographic information drawn from plate tectonics. The origin of the group is considered in relation to special physiological and developmental strategies which evolved in response to life in compact soil and the acquisition of a larger body size. Further evolution, also related to the terricolous habits, implied differentiations of intestinal structures and modifications of the… Expand
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References

SHOWING 1-10 OF 125 REFERENCES
Speciation, genetic divergence and palaeogeography in the hormogastridae
TLDR
The electrophoretic analysis of the gene-enzyme systems reveals a wide molecular divergence between the Sardinian and both the Pyrenean populations of H. pretiosa, and an unsuspected similar divergence betweenThe latter populations (only 60 km apart): such values suggest of the morphospecies into three sibling species. Expand
History of Clitellata
Abstract The origin and evolution of Clitellata are discussed by inductive method, taking into account the morphological, ecological and embryonic characters of the microdriles, hirudineans andExpand
Evolutionary relationships within the clitellata
Abstract The results from published cladistic analyses of various oligochaete taxa suggest that the Haplotaxidase is a paraphyletic taxon once Metataxis is transfered to the Lumbricina and TiguassuExpand
A taxonomic analysis of the Haplotaxidae (Annelida, Oligochaeta)
TLDR
A combination of classical and computer-aided methods suggests that the Haplotaxidae can now be divided into several genera, and Tiguassu is elevated to the status of the type of a new family, TiguASSidae. Expand
First record of Dendrobaena attemsi (Michaelsen) (Oligochaeta, Lumbricidae) in Scandinavia, with a critical review of its morphological variation, taxonomic relationships and geographical range
TLDR
A morphological comparison of the new material with conspecific samples from Italy and Turkey, and with literature data, shows that the typical traits of the species remain virtually invariant throughout its geo graphic range. Expand
Nine new species of Dichogaster (Oligochaeta, Megascolecidae) from Guadeloupe (French West Indies)
TLDR
Nine species belonging to two distinct groups within the genus Dichogaster Beddard, 1888 are described from material collected on the volcanic section of the island of Guadeloupe, and the division of Dichogsaster based on muscularity of the proventriculus wall is shown to be unsupportable. Expand
The Zoogeography and Evolution of Tasmanian Oligochaeta
Two of the three orders into which the Oligochaeta (earthworms and their allies) are divisible (Brinkhurst & Jamieson, 1971) are represented in Tasmania (for classification see Table 8.1). TheExpand
ON THE PHYLOGENY AND HIGHER CLASSIFICATION OF THE OLIGOCHAETA
TLDR
The optimal result, in terms of maximal number of characters and taxa and of parsimony, produced two trees differing only in the placement of the monotypic clade for the family Lumbriculidae. Expand
A numerical revision of the earthworm genus Pheretima auct. (Megascolecidae: Oligochaeta) with the recognition of new genera and an appendix on the earthworms collected by the Royal Society North Borneo Expedition
TLDR
Numerical methods were used to investigate the affinities of 114 species assigned to the genus Pheretima with the view to dividing it into smaller, more manageable units. Expand
The position of the Haplotaxidae in the evolution of oligochaete annelids
The Haplotaxidae have all the characteristics to support the hypothesis that they are the living descendents of the stem forms from which all of the Oligochaeta Clitellata (Orders Lumbriculida,Expand
...
1
2
3
4
5
...