<documentid="2F138F8B2C581C2C2BF61862AF5CCB68"ID-DOI="10.3897/phytokeys.250.132304"ID-publisher-id="132304"URI-arpha="293C2512-41A5-5BE1-BAC3-C89898C71F59"XM.bibliography_approvedBy="admin"XM.materialsCitations_approvedBy="admin"XM.taxonomicNames_approvedBy="admin"article-type="research-article"checkinTime="1735312828323"checkinUser="pensoft"docAuthor="Pane, Elya Putri, Risjani, Yenny, Hamilton, Paul B., Solak, Cüneyt Nadir, Yunianta, Yunianta, Ertorun, Nesil & Yılmaz, Elif"docDate="2024"docId="0D724C1AC1AD569A93BFAB669DC14BB1"docLanguage="en"docName="PhytoKeys 250: 165-179"docOrigin="PhytoKeys 250"docSource="https://phytokeys.pensoft.net/article/132304/download/xml/"docStyle="DocumentStyle:PensoftTaxPub.0000.journal_article.phytokeys"docStyleName="PensoftTaxPub.0000.journal_article.phytokeys"docTitle="Halamphora lombokensis P. B. Hamilton, E. P. Pane, Y. Risjani & C. N. Solak 2024, sp. nov."docType="treatment"docVersion="3"dtd-version="3.0"lastPageNumber="179"masterDocId="293C251241A55BE1BAC3C89898C71F59"masterDocTitle="A new marine diatom (Bacillariophyceae) species – Halamphora lombokensis sp. nov. and the first observation for H. banzuensis from Kuta Beach Lombok, West Nusa Tenggara, Indonesia"masterLastPageNumber="179"masterPageNumber="165"pageNumber="165"updateTime="1735445774048"updateUser="admin">
<mods:titleid="072A952837087DB18B878FD05B38EA2B">A new marine diatom (Bacillariophyceae) species – Halamphora lombokensis sp. nov. and the first observation for H. banzuensis from Kuta Beach Lombok, West Nusa Tenggara, Indonesia</mods:title>
<mods:affiliationid="FBD3F503950EE116CA2B928E67FA93EC">Doctoral Program of Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, University of Brawijaya, 65145 Malang, East Java, Indonesia</mods:affiliation>
<mods:affiliationid="7A255DB9F196E06AE05956AA4B74BC52">Doctoral Program of Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, University of Brawijaya, 65145 Malang, East Java, Indonesia</mods:affiliation>
<mods:affiliationid="7CA5DBBAF15135B75D39E527C23CF7E5">Aquaculture Master Program at Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, University of Brawijaya, 65145 Malang, East Java, Indonesia</mods:affiliation>
<mods:affiliationid="FCB5B9886B011A7AD333F5C107946B02">Research Center on Algae and Environment (ALGAEN Center), University of Brawijaya, Malang, Indonesia</mods:affiliation>
<mods:affiliationid="2ADDB8157364E7E3EB474CF626D6B4DA">Doctoral Program of Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, University of Brawijaya, 65145 Malang, East Java, Indonesia</mods:affiliation>
<mods:affiliationid="26F99331C5A0B352928A935E6DA7E5FC">Research and Collections, Canadian Museum of Nature, P. O. Box 3443, Station D, Ottawa, Ontario K 1 P 6 P 4, Canada</mods:affiliation>
<mods:affiliationid="3B551909C33B05FB74C15D63E9EC9140">Department of Biology, Faculty of Science and Art, University of Dumlupınar, 43000 Kütahya, Turkiye</mods:affiliation>
<taxonomicNameid="57E47FB28AB0D74F5EE5AC7F43F49298"authority="P. B. Hamilton, E. P. Pane, Y. Risjani & C. N. Solak"authorityName="P. B. Hamilton, E. P. Pane, Y. Risjani & C. N. Solak"authorityYear="2024"class="Bacillariophyceae"family="Catenulaceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Plantae"order="Thalassiophysales"phylum="Ochrophyta"rank="species"species="lombokensis"status="sp. nov.">
Valves semi-lanceolate to narrowly semi-elliptic with straight ventral and distinctively convex dorsal margins. Valve length 11.0–13.0 μm, breadth 2.0–3.0 μm. Valve ends slightly ventrally bent, rostrate to almost subcapitate. Raphe branches straight. Proximal raphe endings linear, distal raphe fissures not discernible in LM. The axial area narrow and the central area is almost absent. Striae is only visible under
<abbrevid="ABBRID0E3EAE"xlink_title="scanning electron microscope">SEM</abbrev>
<figureCitationid="9085FC2323894D08137169BFD61C8B35"captionStart="Figure 4"captionStartId="F4"captionText="Figure 4. Type material of Halamphora lombokensis Hamilton, Pane, Risjani & Solak, sp. nov. from Lombok Kuta, Indonesia. LM micrographs of valves showing the size diminution series. Scale bar: 10 µm."figureDoi="10.3897/phytokeys.250.132304.figure4"httpUri="https://binary.pensoft.net/fig/1208544">4 A – J</figureCitation>
<taxonomicNameid="D3C64AC2E9A891C83F7E0E272C865FBC"authority="Hamilton, Pane, Risjani & Solak"authorityName="P. B. Hamilton, E. P. Pane, Y. Risjani & C. N. Solak"authorityYear="2024"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Chromista"order="Naviculales"phylum="Ochrophyta"rank="species"species="lombokensis"status="sp. nov.">
<abbrevid="ABBRID0EBGAE"xlink_title="scanning electron microscope">SEM</abbrev>
.
</heading>
</paragraph>
<paragraphid="44102E81F34EC373C78455D77E190727">
Externally, valves are dorsiventral with narrowly convex dorsal margin and straight concave ventral margin. Central area absents on dorsal side and semi-lanceolate on ventral side. Raphe ledge extends from end to end, moderate, more or less equal width and weakly expanded towards the ends. Raphe branches weakly arched. Proximal raphe endings slightly expanded into straight central depressions. Distal raphe endings are hook-shaped. Dorsal striae are composed of uniseriate areolae; areolae elongated to become rounded towards margin. Areolae are composed of two elongated forms. Ventral striae with slit-like areola. Internally, areolae are round to elongate and divided into two pieces. Distal raphe endings terminating with poorly developed helictoglossae. Proximal raphe fissures fused into central helictoglossae. A distinct longitudinal band of silica runs from end to end near the dorsal axial area (Fig.
<figureCitationid="343292DE40F5AAB9AE1A04A92ADEE2CE"captionStart="Figure 5"captionStartId="F5"captionText="Figure 5. Type A – D SEM micrographs of external view of Halamphora lombokensis Hamilton, Pane, Risjani & Solak A general external view of a valve B details of central area showing simple depressed proximal raphe endings C, D details of the apices showing distal raphe endings. A small grove extends from the terminal raphe end towards the apex. E – H SEM micrographs of internal view of Halamphora lombokensis E general external view of a valve F details of central area showing proximal raphe endings. Arrows highlight thick verminae separating the areolae. G, H details of the apices showing distal raphe endings. Scale bars: 5 μm (A, E); 2 μm (F – H); 1 μm (B – D)."figureDoi="10.3897/phytokeys.250.132304.figure5"httpUri="https://binary.pensoft.net/fig/1208545">5 A – H</figureCitation>
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<bibRefCitationid="46A360B599BF629869DADFD98A837F60"author="Stepanek JG & Kociolek JP"firstAuthor="Stepanek"page="68"refId="B18"refString="Stepanek JG, Kociolek JP (2018) Amphora and Halamphora from coastal waters and inland waters of the United States and Japan. Bibliotheca Diatomologica 66: 1–260 [78 pls, 1 table]."year="2018">Stepanek and Kociolek (2018: 68)</bibRefCitation>
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,
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<bibRefCitationid="7A331F4F13709F5A70E8A774055A30EC"DOI="10.11646/phytotaxa.197.1.3"author="Stepanek JG & Kociolek JP"firstAuthor="Stepanek"page="32"refId="B17"refString="Stepanek JG, Kociolek JP (2015) Three new species of the diatom genus Halamphora (Bacillariophyta) from The Prairie Pothole Lakes region of North Dakota, USA. Phytotaxa 197 (1): 27–36 [44 fig., 1 table]. https://doi.org/10.11646/phytotaxa.197.1.3"year="2015">Stepanek and Kociolek (2015: 32)</bibRefCitation>
<bibRefCitationid="E4D6DAB97DD264D9CD37972A1BE64F02"author="Levkov Z"firstAuthor="Levkov"page="175"refId="B8"refString="Levkov Z (2009) Amphora sensu lato in diatoms of Europe. A. R. G. Gantner Verlag K. G. 5: 916."year="2009">Levkov (2009: 175)</bibRefCitation>
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,
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<bibRefCitationid="E64019E2CD3F6B7E781FD7790E4F20F6"author="Stepanek JG & Kociolek JP"firstAuthor="Stepanek"page="50"refId="B18"refString="Stepanek JG, Kociolek JP (2018) Amphora and Halamphora from coastal waters and inland waters of the United States and Japan. Bibliotheca Diatomologica 66: 1–260 [78 pls, 1 table]."year="2018">Stepanek and Kociolek (2018: 50)</bibRefCitation>
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,
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<bibRefCitationid="8BC5D22461E7B721DE4A87B8F3BA6EAB"author="Levkov Z"firstAuthor="Levkov"page="220"refId="B8"refString="Levkov Z (2009) Amphora sensu lato in diatoms of Europe. A. R. G. Gantner Verlag K. G. 5: 916."year="2009">Levkov 2009: 220</bibRefCitation>
),
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and
<taxonomicNameid="A2F9EACB0D534835031B0B6140F81B56"authority="Zidarova et al. (2023: 202)"authorityName="Zidarova"authorityPageNumber="202"authorityYear="2023"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Chromista"order="Naviculales"phylum="Ochrophyta"rank="species"species="valdeminutissima">
<bibRefCitationid="7E7EFFF4A2B88A6839647A960AF6822F"DOI="10.11646/phytotaxa.626.3.6"author="Zidarova R & Pottiez M & Ivanov P & Haan MD & Vijver BVD"etAl="et al."firstAuthor="Zidarova"issue="3"journalOrPublisher="Phytotaxa"page="202"pagination="199-207"refId="B24"refString="Zidarova R, Pottiez M, Ivanov P, Haan MD, Vijver BVD (2023) Amphora micrometra Giffen and Halamphora valdeminutissima sp. nov., two tiny benthic diatom species observed in the Black Sea. Phytotaxa 626 (3): 199–207. https://doi.org/10.11646/phytotaxa.626.3.6"title="Amphora micrometra Giffen and Halamphora valdeminutissima sp. nov., two tiny benthic diatom species observed in the Black Sea."volume="626"year="2023">Zidarova et al. (2023: 202)</bibRefCitation>
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. Regarding striae density,
<taxonomicNameid="2AB159434914646926E57F60337A00AA"authorityName="Stepanek and Kociolek"authorityYear="2018"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Chromista"order="Naviculales"phylum="Ochrophyta"rank="species"species="pellicula">
<taxonomicNameid="B36200489AAD156FB8CBC674E5FF49AC"authorityName="Stepanek and Kociolek"authorityYear="2018"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Chromista"order="Naviculales"phylum="Ochrophyta"rank="species"species="tenuis">
have higher stria densities while the other comparable taxa have lower stria densities. Moreover,
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<taxonomicNameid="7B295FEAA0AC3FB06CA7925C4C1DF603"authorityName="Stepanek and Kociolek"authorityYear="2015"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Chromista"order="Naviculales"phylum="Ochrophyta"rank="species"species="attenuata">
<taxonomicNameid="DDA83C8297E14A285BCB17CC2F19F554"authorityName="Stepanek & Kociolek"authorityYear="2018"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Chromista"order="Naviculales"phylum="Ochrophyta"rank="species"species="pellucula">
<taxonomicNameid="934256187749F6E846FAFA39EC775295"authorityName="Stepanek and Kociolek"authorityYear="2018"class="Bacillariophyceae"family="Amphipleuraceae"genus="Halamphora"higherTaxonomySource="GBIF"kingdom="Chromista"order="Naviculales"phylum="Ochrophyta"rank="species"species="tenuis">
