<documentID-CLB-Dataset="55557"ID-DOI="http://dx.doi.org/10.3897/phytokeys.195.81632"ID-GBIF-Dataset="fc2ecc79-7057-4d85-a7ec-623a6808ca38"ID-PMC="PMC9849039"ID-Pensoft-Pub="1314-2003-195-161"ID-Pensoft-UUID="526F3EF51F8A51B49D3D086FEEBEA4AD"ID-PubMed="36761358"ModsDocID="1314-2003-195-161"checkinTime="1652359759506"checkinUser="pensoft"docAuthor="Zidarova, Ralitsa, Ivanov, Plamen, Dzhembekova, Nina, Haan, Myriam de & Vijver, Bart Van de"docDate="2022"docId="5575656068445EE2934368965B35BA9C"docLanguage="en"docName="PhytoKeys 195: 161-174"docOrigin="PhytoKeys 195"docPubDate="2022-05-11"docSource="http://dx.doi.org/10.3897/phytokeys.195.81632"docTitle="Halamphora kenderoviana Zidarova, P. Ivanov, Dzhembekova, M. de Haan & Van de Vijver 2022, sp. nov."docType="treatment"docVersion="6"id="526F3EF51F8A51B49D3D086FEEBEA4AD"lastPageNumber="161"masterDocId="526F3EF51F8A51B49D3D086FEEBEA4AD"masterDocTitle="Two new Halamphora (Bacillariophyta) species from the marine coasts off Livingston Island, Antarctica"masterLastPageNumber="174"masterPageNumber="161"pageNumber="161"updateTime="1732844666412"updateUser="ExternalLinkService">
<mods:titleid="050BD9EFE8FD0E93C66D80FB64FBB7A9">Two new Halamphora (Bacillariophyta) species from the marine coasts off Livingston Island, Antarctica</mods:title>
<mods:affiliationid="67944CA1549D1BB95013D81C84FE3C40">Institute of Oceanology at the Bulgarian Academy of Sciences, 40 Parvi May Str., 9000 Varna, Bulgaria</mods:affiliation>
<mods:affiliationid="CE27B9DC3D2CF0DFD3D2E2FBD1696985">Institute of Biodiversity and Ecosystem Research at the Bulgarian Academy of Sciences, 2 Mayor Yurii Gagarin Str., 1113 Sofia, Bulgaria</mods:affiliation>
<mods:affiliationid="117BF92F9009EEAE2D55D6F5F3870500">Institute of Oceanology at the Bulgarian Academy of Sciences, 40 Parvi May Str., 9000 Varna, Bulgaria</mods:affiliation>
<mods:affiliationid="734BE58351BE411EEF2847C049B2C08E">Meise Botanic Garden, Nieuwelaan 38, B- 1860, Meise, Belgium & University of Antwerp, Department of Biology - ECOSPHERE, Universiteitsplein 1, B- 2610 Wilrijk, Belgium</mods:affiliation>
<taxonomicNameid="2968AB93EE837F127C7E6AAED4C0E0F7"LSID="55756560-6844-5EE2-9343-68965B35BA9C"authority="Zidarova, P. Ivanov, Dzhembekova, M. de Haan & Van de Vijver"authorityName="Zidarova, P. Ivanov, Dzhembekova, M. de Haan & Van de Vijver"authorityYear="2022"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="treatment-meta"kingdom="Plantae"lsidName="Halamphora kenderoviana"order="Naviculales"pageId="0"pageNumber="161"phylum="Bacillariophyta"rank="species"species="kenderoviana"status="sp. nov.">Halamphora kenderoviana Zidarova, P.Ivanov, Dzhembekova, M.de Haan & Van de Vijver</taxonomicName>
<figureCitationid="DE7061DBFBB71AF2418EF64887417EF1"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">Fig. 2A-M</figureCitation>
<figureCitationid="A8BC018B8D868E600435670EF9F53D6D"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2D</figureCitation>
<taxonomicNameid="03221337B94ADC72E6DD8769489D594F"authorityName="Zidarova, P. Ivanov, Dzhembekova, M. de Haan & Van de Vijver"authorityYear="2022"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"kingdom="Plantae"lsidName="Halamphora kenderoviana"order="Naviculales"pageId="0"pageNumber="161"phylum="Bacillariophyta"rank="species"species="kenderoviana">
<figureCitationid="3E4BFFACB1572158FAE2631191F5AD1C"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2A-I</figureCitation>
<figureCitationid="01AE5B9172E22D4706920F27825C3E84"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2B</figureCitation>
<figureCitationid="B1143A7A473DD8B988FD2A379F35105D"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2F-I</figureCitation>
<figureCitationid="99528EF694A919FF253ADA310FC8E280"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2A, C, I</figureCitation>
). Distal raphe fissures not discernible in LM. Axial area narrow. Central area on the dorsal side very small to usually absent, on the ventral side clearly enlarged. Dorsal striae parallel to weakly radiate in the middle, becoming more radiate towards the apices, 18-20 in 10
<figureCitationid="EF36B28497BEC1E3EDA282EE995CCA78"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2E, G</figureCitation>
<figureCitationid="FECE69F090D6BA7A9EC734ECF2262744"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2C-F, I</figureCitation>
<figureCitationid="2B73DDA67D9DED24632BCF048A83B76A"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2J-M</figureCitation>
). Externally, valves possess a distinct raphe ledge, running along the entire length of the valve, clearly widened in the valve middle, truncated and slightly expanded at the apices (Fig.
<figureCitationid="1B5DCD75552557BA837566A33CDB1CBC"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2J, M</figureCitation>
<figureCitationid="AAD69DE094541532B39FA9EB4BC13981"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2J, M</figureCitation>
<figureCitationid="E31FDB27BBFDA54E46A2BF1E79E51FC6"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2J, M</figureCitation>
<figureCitationid="C42627D0ACD01FD59B4238E0000DD8CB"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2M</figureCitation>
<figureCitationid="A30F00CDAEDC745EB8E2130DF1C07C74"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2J</figureCitation>
<figureCitationid="90A99784E4812A685618FE7BD3032E41"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2J</figureCitation>
<figureCitationid="AC500C6A496CDF44AC3BF096AF694485"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2K</figureCitation>
<figureCitationid="8F182B4617761FADF644E5F70FE802C2"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2K</figureCitation>
<figureCitationid="EA3E28500C7A63161CBEC948A230BC5D"captionStart="Figure 2"captionStartId="F2"captionText="Figure 2. Halamphora kenderoviana sp. nov., valves from the type population from South Bay, Livingston Island A-I valves under LM, with fig. A showing an entire frustule D represents the holotype J two valves under SEM externally with details of the central raphe endings and mantle areolae K SEM of an entire valve internally L SEM of a valve internally, showing the prominent raised costae between the striae and the internal areolar occlusions M SEM of an entire valve externally, with a view on the mantle and the dorsal ridge. Scale bars: 10 µm (A-I, M); 5 µm (J-L)."figureDoi="10.3897/phytokeys.195.81632.figure2"httpUri="https://binary.pensoft.net/fig/682674"pageId="0"pageNumber="161">2L</figureCitation>
<paragraphid="B32FC7DDD317DE7088C61F242E79BB5D"pageId="0"pageNumber="161">The new species is named after our colleague Dr Lyubomir Kenderov, hydrobiologist at the Faculty of Biology, University of Sofia, with whom RZ shared two Antarctic seasons, and who was often a helping hand during field work in Antarctica.</paragraph>
<taxonomicNameid="C65612DDC210B69319946F2B638F204D"authorityName="Zidarova, P. Ivanov, Dzhembekova, M. de Haan & Van de Vijver"authorityYear="2022"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"kingdom="Plantae"lsidName="Halamphora kenderoviana"order="Naviculales"pageId="0"pageNumber="161"phylum="Bacillariophyta"rank="species"species="kenderoviana">
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sp.5), but only found in abundance (17.5% of the counted valves) in the type locality, a tidal pool with alkaline water and a salinity level of 33.1 PSU (Table
<tableCitationid="75692DF2203E22BA468DB1E98C8F0B63"captionStart="Table 1"captionStartId="T1"captionText="Table 1. Samples containing the new taxa, with their environmental parameters."httpUri="http://table.plazi.org/id/ED7E4EC1E02DC579596F04AE93772E30"pageId="0"pageNumber="161"tableUuid="ED7E4EC1E02DC579596F04AE93772E30">1</tableCitation>
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