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- Publications
- Influence
The direction of evolution within the Polychaeta
- W. Westheide
- Biology
- 1997
The phylogenetic systematics of the polychaetes, i.e. the non-clitellate annelids, depend on which characters are regarded as belonging to the bauplan of the annelid stem species. The main… Expand
The Evolution of Annelids Reveals Two Adaptive Routes to the Interstitial Realm
- T. Struck, A. Golombek, +5 authors K. Halanych
- Biology, Medicine
- Current Biology
- 3 August 2015
Many animals permanently inhabit the marine interstitium, the space between sand grains [1, 2]. Different evolutionary scenarios may explain the existence of interstitial animals [3, 4]. These… Expand
Are Echiura derived from a segmented ancestor? Immunohistochemical analysis of the nervous system in developmental stages of Bonellia viridis
- R. Hessling, W. Westheide
- Medicine, Biology
- Journal of morphology
- 1 May 2002
Despite several unquestionably homologous characters with Annelida, the Echiura have generally been considered to form a distinct taxon due to apparent lack of segmentation: neither in the body… Expand
Progenesis in Eunicida ("Polychaeta," Annelida)--separate evolutionary events? Evidence from molecular data.
- T. Struck, W. Westheide, G. Purschke
- Biology, Medicine
- Molecular phylogenetics and evolution
- 1 October 2002
The Eunicida are a well-defined annelid taxon currently comprising Dorvilleidae, Lumbrineridae, Eunicidae, Onuphidae, and Hartmanniellidae. Especially the Dorvilleidae include several species of… Expand
Two new terrestrial Enchytraeus species (Oligochaeta, Annelida)
- W. Westheide, U. Graefe
- Biology
- 1 June 1992
Enchytraeus crypticus n.sp. and Enchytraeus doerjesi n.sp. were discovered in laboratory cultures of terrestrial enchytraeids in the course of a project evaluating various non-light-microscopical… Expand
Morphological reinvestigation and phylogenetic relationship of Acanthobdella peledina (Annelida, Clitellata)
- G. Purschke, W. Westheide, D. Rohde, R. Brinkhurst
- Biology
- Zoomorphology
- 1 June 1993
SummaryIn recently collected specimens of Acanthobdella peledina the nervous system, the genital organs and the coelomic organisation were reinvestigated after complete serial sections. These… Expand
Progenesis as a principle in meiofauna evolution
- W. Westheide
- Biology
- 1 August 1987
The interstitial meiofaunal taxa may have evolved in very different ways, which are shortly discussed and schematically represented. Several taxa reveal the possibility of an evolutionary pathway by… Expand
CLSM analysis of development and structure of the central nervous system of Enchytraeus crypticus (”Oligochaeta”, Enchytraeidae)
- R. Hessling, W. Westheide
- Biology
- Zoomorphology
- 28 May 1999
Abstract The phylogenetic position of the Clitellata within the Annelida is still in debate. It is unresolved whether they are a basal group, resembling the stem species of the Annelida, or a highly… Expand