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Hidden among Sea Anemones: The First Comprehensive Phylogenetic Reconstruction of the Order Actiniaria (Cnidaria, Anthozoa, Hexacorallia) Reveals a Novel Group of Hexacorals
Based on the comprehensive phylogeny, a new formal higher-level classification is proposed for Actiniaria composed of only two suborders, Anenthemonae and EnthemonAE and erect subgroups within these two newly-erected suborders. Expand
Phylogenetic relationships among sea anemones (Cnidaria: Anthozoa: Actiniaria).
It is determined that taxonomic groups based on the absence of features tend not to be recovered as monophyletic, but that at least some classical anatomical features define monophylettic groups. Expand
Toward a natural classification: phylogeny of acontiate sea anemones (Cnidaria, Anthozoa, Actiniaria)
The results of the phylogenetic analyses indicate that the diagnostic morphological characters used in the family‐level taxonomy of acontiate actiniarians such as the nematocysts of the acontia, the marginal sphincter muscle, and mesenteries divisible into macro‐ and micro‐cnemes, have to be revisited, as these features are highly homoplasious. Expand
Evolution of sea anemones (Cnidaria: Actiniaria: Hormathiidae) symbiotic with hermit crabs.
  • L. Gusmão, M. Daly
  • Biology, Medicine
  • Molecular phylogenetics and evolution
  • 1 September 2010
The carcinoecium and complex behavioral and anatomical features associated with the symbiosis are interpreted as having evolved at least twice within Hormathiidae and seem to be phylogenetically labile. Expand
Phylogenetic signal in mitochondrial and nuclear markers in sea anemones (Cnidaria, Actiniaria).
The properties of mitochondrial and nuclear ribosomal genes in the cnidarian order Actiniaria are explored, using both an ordinal- and familial-scale sample of taxa and although the markers do not show significant incongruence, they differ in their phylogenetic informativeness and the kinds of relationships they resolve. Expand
Edwardsia migottoi sp. nov., the first sea anemone species of Edwardsia de Quatrefages 1842 (Anthozoa: Actiniaria: Edwardsiidae) from the Southwestern Atlantic
The description of the new species lead to the recognition that the mesenterial morphology of the monotypic Pacific genus Metedwardsia Carlgren 1947 is unlike that of members of Edwardsiidae to which it belonged and similar to that of Halcampidae Andres 1883, resulting in its transfer to the latter family. Expand
Metapeachia schlenzae sp. nov. (Cnidaria: Actiniaria: Haloclavidae) a new burrowing sea anemone from Brazil, with a discussion of the genus Metapeachia.
The diversity of burrowing sea anemones from Brazil is poorly known with only three species recorded, but the two valid species of Metapeachia differ in the morphology of the conchula, internal anatomy, cnidae and geographical distribution. Expand
Phylogenetic relationships among the clownfish-hosting sea anemones.
The largest phylogenetic analysis of sea anemones (Order Actiniaria) to date is conducted, with a focus on expanding the biogeographic and taxonomic sampling of the 10 nominal clownfish-hosting species, and demonstrates widespread poly- and para-phyly at the family and genus level. Expand
Sea Anemones through X-Rays: Visualization of Two Species of Diadumene (Cnidaria, Actiniaria) Using Micro-CT
The utility of micro-CT imaging and its potential to generate fast, low-cost, and high-resolution datasets despite the anemone's low-density soft tissue is evaluated and a protocol for sample handling, chemical staining, and scanning parameters that resulted in satisfactory imaging of the two specimens examined is presented. Expand
The first sea anemone (Cnidaria: Anthozoa: Actiniaria) from a whale fall
Anthosactis pearseae n. sp. is the first species of sea anemone described from a deep‐sea whale fall. It is a member of one of the most diverse genera of Actinostolidae, a family that dominates inExpand