**_Orthoseira limnopolarensis** sp. nov. (Bacillariophyta), a new diatom species from Livingston Island (South Shetland Islands, Antarctica)

Abstract: A new species of diatom, Orthoseira limnopolarensis, is described from a sediment core in Limnopolar Lake on Livingston Island, South Shetlands in the South Atlantic Ocean. The new species is distinctive in having an array of numerous (1214) carinoportulae, a number of clearly defined rimo...

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Bibliographic Details
Published in:Cryptogamie, Algologie
Main Authors: Van de Vijver, Bart, Crawford, Richard M.
Format: Article in Journal/Newspaper
Language:English
Published: 2014
Subjects:
Biology
Limnopolar Lake
Livingston Island
South Shetland Islands
Antarc*
Antarctica
South Atlantic Ocean
Online Access:https://hdl.handle.net/10067/1189290151162165141
Description
Summary:Abstract: A new species of diatom, Orthoseira limnopolarensis, is described from a sediment core in Limnopolar Lake on Livingston Island, South Shetlands in the South Atlantic Ocean. The new species is distinctive in having an array of numerous (1214) carinoportulae, a number of clearly defined rimoportulae which are described here for the first time in the genus, and a valve face surface that is covered with small, irregularly scattered spines. Linking spines are less well-developed than is generally observed in species of the genus Orthoseira. No caverns or internal undulations are present. Internal valves have not been encountered.

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