Three new species of Delicata (Bacillariophyceae – Cymbellales) from New Caledonia and further observations on Delicata nepouiana Krammer and D. neocaledonica Krammer

Autor:	Julien Marquié, René Le Cohu, Loïc Tudesque
Rok vydání:	2018
Předmět:	0106 biological sciences Dorsum biology Genus 010604 marine biology & hydrobiology Cymbellales Zoology Taxonomy (biology) Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences
Zdroj:	Diatom Research. 33:39-53
ISSN:	2159-8347 0269-249X
DOI:	10.1080/0269249x.2017.1407827
Popis:	A recent survey of epilithic diatoms in the running waters of the main island of New Caledonia led to the discovery of three new species of Delicata, Delicata pouemboutensis sp. nov., Delicata gobiniana sp. nov. and Delicata karembeui sp. nov. Delicata pouemboutensis is characterized by a strongly convex dorsal side and a low length/breath ratio (3.2–5.0). Delicata gobiniana has an acicular, almost naviculoid outline, with a high length/breath ratio (7.1–8.7). Delicata karembeui has an unusual stria structure for the genus and a valve face with shallow depressions along the dorsal and ventral sides of the valve. Delicata karembeui can be distinguished from other cymbelloid genera by a combination of features including outline, size, raphe course and stria structure. Delicata neocaledonica Krammer and Delicata nepouiana Krammer, so far only described with light microscopy, were also examined and additional scanning electron microscope observations are included.
Databáze:	OpenAIRE
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