|
|
|
|
|
| Vries, Elizabeth J. de; Ball, Ian R.. |
| Dugesia gonocephala s.l. is often considered to be a “superspecies” comprising numerous component “microspecies” which are morphologically, karyologically, and reproductively delimited. We have studied populations of D. gonocephala from France, Belgium and The Netherlands and found them to be fairly uniform in respect of most features studied. Nevertheless, discrepancies between them and the “classical” concept of this species as embodied in the literature have raised doubts as to the status and identity of D. gonocephala s. str. A proper understanding of the relationships of the D. gonocephala group can not be obtained without resolution of this problem. |
| Tipo: Article / Letter to the editor |
|
| Ano: 1980 |
URL: http://www.repository.naturalis.nl/record/503983 |
| |
|
|
| Vries, Elizabeth J. de. |
| Dugesia gonocephala is a species group, comprising numerous closely related species, which differ from each other in morphological and karyological aspects. In this paper known and presently described species, of the group from the eastern Mediterranean region, are reviewed. Hitherto the triclads of this region have been poorly known in comparison with their western counterparts. Yet there is a wealth of species in the area. Six well-delimited new species of the Dugesia gonocephala group are described and one further species is rescued from synonymy. The wealth of material available has also made possible an assessment of the taxonomic validity of many characters usually considered to be of importance within this difficult group. |
| Tipo: Article / Letter to the editor |
|
| Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/504437 |
| |
|
|
|
