{{Short description|Genus of sponges}} {{Automatic taxobox | name = ''Placospongia'' | image = Placospongia sp..jpg | image_caption = | taxon = Placospongia | authority = Grey, 1867 | subdivision_ranks = Species | subdivision = see text | synonyms = * ''Physcaphora'' <small>Hanitsch, 1895</small> }}
'''''Placospongia''''' is a genus of sea sponges belonging to the family Placospongiidae.<ref name="ITIS">{{ITIS | id = 48518 | taxon = Placospongia | accessdate = 15 February 2007 }}</ref>
This genus is characterized by a high density of siliceous spicules. Members of this genus are known to be eaten by hawksbill turtles.<ref name="ScienceSpongi">{{cite journal | last =Meylan | first =Anne | author-link =Anne Meylan | title =Spongivory in Hawksbill Turtles: A Diet of Glass | journal =Science | volume =239 | issue =4838 | pages =393–395 | publisher =American Association for the Advancement of Science | date =1988-01-12 | doi = 10.1126/science.239.4838.393| pmid =17836872 | jstor=1700236}}</ref>
==Species== *''Placospongia carinata'' *''Placospongia melobesioides''
==References== {{Reflist}}
{{Taxonbar|from=Q3024322}}
Category:Hadromerida Category:Taxa described in 1867
{{demosponge-stub}}