My activity
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Martin Dohrmann commented on "from culture":
@Paddy Patterson: Dear Paddy, I just wanted to remove the image from the page I'm curating (Porifera: Hexactinellida). I have no idea how this picture got there (a bug in the system?). So by "misidentified" I just meant that Proterospongia is not a hexactinellid. Sorry if I didn't handle this correctly. Martin
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Martin Dohrmann commented on an older version of Palm Coral Clavularia sp.:
Not a hexactinellid!
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Martin Dohrmann commented on an older version of Palm Coral Clavularia sp.:
Not a hexactinellid!
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Martin Dohrmann commented on an older version of Comprehensive Description:
@Bob Corrigan: @Bob Corrigan: Will do as soon as I find some time!
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Martin Dohrmann commented on an older version of Comprehensive Description:
The issues I pointed out previously have not been corrected in this version
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Martin Dohrmann commented on an older version of Comprehensive Description:
a) Third paragraph, last sentence: while it is true that hexactinellids can send electrical signals, they do so via their syncytial soft tissue, not through the skeleton b) The last paragraph should be removed -- this hypothesis is outdated. Hexactinellids are regarded as close relatives of the Demospongiae, most probably their sister group, so they don't deserve a rank above the class-level. See Ax 1996 (Multicellular Animals: A New Approach to the Phylogenetic Order in Nature; Springer), Thiel et al. 2002 (Naturwissenschaften 89:60), Dohrmann et al. 2008 (Syst. Biol. 57:388), Philippe et al. 2009 (Curr. Biol. 19:706), Sperling et al. 2010 (Geobiology 8:24). It would also be a good idea to add the following reference to the literature list, which is the most comprehensive review of glass sponge biology so far: Leys, S.P., Mackie, G.O., Reiswig, H.M. 2007. The biology of glass sponges. Adv. Mar. Biol. 52:1–145.
