<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:contributor>Patricio Rivera</dc:contributor>
  <dc:creator>George W. Andrews</dc:creator>
  <dc:date>1987</dc:date>
  <dc:description>&lt;div class="hlFld-Abstract test"&gt;&lt;div class="abstractSection abstractInFull"&gt;&lt;p&gt;A new marine diatom genus and species,&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Adoneis pacifica&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;G.W. Andrews and P. Rivera, has been identified in Chilean coastal waters. This taxon shows obvious affinities to the genera&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Rhaphoneis&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;and&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Delphineis&lt;/i&gt;, but cannot be classified in either, as they are currently construed.&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Adoneis pacifica&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;resembles&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Rhaphoneis&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;in outline and to some degree in the pseudocelli, whereas it resembles&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Delphineis&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;in the structure of the vela and the positioning of the apical rimoportulae. However, distinctive characters of this new monotypic genus are: (1) the usual positioning of a single rimoportula near the centre of each lateral margin of the valve, and (2) the occurrence of well organized apical pore fields (pseudocelli), in which the pores are much smaller than elsewhere on the valve. These appear to be primitive traits for the araphid diatom family Fragilariaceae, and they suggest that&lt;span&gt;&amp;nbsp;&lt;/span&gt;&lt;i&gt;Adoneis pacifica&lt;/i&gt;&lt;span&gt;&amp;nbsp;&lt;/span&gt;may be a conservative species important in the study of the evolution of the family.&lt;/p&gt;&lt;/div&gt;&lt;/div&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1080/0269249X.1987.9704980</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Taylor &amp; Francis</dc:publisher>
  <dc:title>Morphology and evolutionary significance of Adoneis pacifica gen. et sp. Nov. (Fragilariaceae, Bacillariophyta), a marine araphid diatom from Chile</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>