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Adriatic calcarean sponges (Porifera, Calcarea), with the description of six new species and a richness analysis

By Michelle Klautau, Mirna Imešek, Fernanda Azevedo, Bruna Pleše, Vedran Nikolić and Helena Ćetković

Abstract

In this study we analyze the calcarean sponge diversity of the Adriatic Sea, the type locality of some of the first described species of calcarean sponges. Morphological and molecular approaches are combined for the taxonomic identification. Our results reveal six species new to science and provisionally endemic to the Adriatic Sea (<em>Ascandra spalatensis</em> sp. nov., <em>Borojevia croatica</em> sp. nov., <em>Leucandra falakra</em> sp. nov., <em>L. spinifera</em> sp. nov., <em>Paraleucilla dalmatica</em> sp. nov., and <em>Sycon ancora</em> sp. nov.), one species previously known only from the Southwestern Atlantic (<em>Clathrina conifera</em>), and three already known from the Adriatic Sea (<em>Ascaltis reticulum</em>, <em>Borojevia cerebrum</em>, and <em>Clathrina primordialis</em>). We confirm the presence of the alien species <em>Paraleucilla magna</em> in the Adriatic and again record <em>Clathrina blanca</em>, <em>C. clathrus</em>, and <em>C. rubra</em>. We emend the description of the genus <em>Ascaltis</em>, propose a lectotype for <em>Borojevia cerebrum</em> and synonymise <em>B. decipiens</em> with <em>B. cerebrum</em>. A checklist of all calcarean species previously and currently known from the Adriatic Sea (39 species) is given. The Central Adriatic is indicated as the richest calcarean sponge fauna sector; however, the biodiversity of this class is underestimated in the whole Adriatic Sea and new systematic surveys are desirable

Topics: Porifera, Calcarea, Adriatic Sea, molecular taxonomy, morphological taxonomy, Zoology, QL1-991, Botany, QK1-989
Publisher: Consortium of European Natural History Museums
Year: 2016
DOI identifier: 10.5852/ejt.2016.178
OAI identifier: oai:doaj.org/article:b245fb790c604fc995ab78684a86fb39
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