Stoloniferous Anthozoa are recorded for the first time from shallow water off Puerto Pirámide, Province of Chubut, Argentina. The specimens collected in the low intertidal zone agree morphologically with the original description of Rhodelinda gardineri, although differences
can be noticed in size and morphology of the spicules of the anthostele and anthocodia. Moreover, the extreme fragility of the anthostelar armature formed by sclerite fusion, is pointed out, and some ecological factors are considered as determinant of this brittleness. These differences are
discussed and it is concluded that they may be of taxonomic significance.
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