WoRMS banner
Add search provider Add provider
Twitter: Latest updates @WRMarineSpecies

Integrated Marine Information System (IMIS)

Persons | Institutes | Publications | Projects | Datasets
[ report an error in this record ]basket (0): add | show Printer-friendly version

Taxonomy, phylogeny and biogeography of the marine sponge genus Acarnus (Porifera: Poecilosclerida)
Van Soest, R.W.M.; Hooper, J.N.A.; Hiemstra, F. (1991). Taxonomy, phylogeny and biogeography of the marine sponge genus Acarnus (Porifera: Poecilosclerida). Beaufortia 42(3): 49-88
In: Beaufortia. Zoological Museum: Amsterdam. ISSN 0067-4745
Peer reviewed article

Keywords
    Animal morphology; Biogeography; Phylogeny; Taxonomy; Acarnus Gray, 1867 [WoRMS]; Porifera [WoRMS]; Marine

Authors  Top 
  • Van Soest, R.W.M., more
  • Hooper, J.N.A.
  • Hiemstra, F.

Abstract
    Cosmotropical species reported in the genus Acarnus, are demonstrated to show small, but consistent interregional morphological differences, leading to the conclusion that these "species" are very probably complexes of closely related species derived from former wide-spread (Tethyan and/or Gondwanan) ancestors. On the basis of this analysis, six regional Acarnus forms are described as new species. The confused taxonomy of some species is clarified on the basis of reexamination of type specimens. The phylogenetic history of the genus is reconstructed with cladistic techniques, using morphological characters of original as well as unpublished material together covering almost all described taxa from all over their known ranges. The resultant cladogram is used for a discussion of the biogeographic history of the genus. Some disjunct patterns are apparent, which are possibly in conflict with the currently accepted history of the world oceans.

 Top | Authors 
[Back]