Scoliolyra elliptica gen. et sp. nov. (Bacillariophyceae), a new marine genus from sandy beach in Southern China

JIAWEI ZHANG; ZHEN WANG; SUQING ZHUO; YAHUI GAO; XUESONG LI; JUN ZHANG; LIN SUN; JUNRONG LIANG; LANG LI; CHANGPING CHEN

doi:10.11646/phytotaxa.472.1.1

Issue: Vol. 472 No. 1: 18 November 2020

Type: Article

Published: 2020-11-18

DOI: 10.11646/phytotaxa.472.1.1

Page range: 1–12

Abstract views: 38

PDF downloaded: 1

Scoliolyra elliptica gen. et sp. nov. (Bacillariophyceae), a new marine genus from sandy beach in Southern China

JIAWEI ZHANG⁺⁻
ZHEN WANG⁺⁻
SUQING ZHUO⁺⁻
YAHUI GAO⁺⁻
XUESONG LI⁺⁻
JUN ZHANG⁺⁻
LIN SUN⁺⁻
JUNRONG LIANG⁺⁻
LANG LI⁺⁻
CHANGPING CHEN⁺⁻

Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems and School of Life Sciences, Xiamen University, Xiamen 361102, China

Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems and School of Life Sciences, Xiamen University, Xiamen 361102, China State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China

Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems and School of Life Sciences, Xiamen University, Xiamen 361102, China

State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China

Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems and School of Life Sciences, Xiamen University, Xiamen 361102, China

Algae Diatoms Epipsammon Intertidal zone New genus Raphe sternum

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Abstract

Observation of sand samples collected from an estuarine sandy beach in Southern China revealed the presence of a new biraphid diatom. It is characterized by the presence of a twisted raphe system, apically elongate areolae, and striae interrupted by longitudinal H-shaped lateral areas in a form of valve face depressions, as well as girdle composed of open, plain copulae. The structure of valve outline, the raphe sternum and striae bears some resemblance to some established genera including e.g., Lyrella, Fallacia, Scolioneis, Scoliopleura and Scoliotropis, however, these characters are uniquely combined in this novel taxon. The new species, Scoliolyra elliptica, belongs to a new biraphid genus, Scoliolyra, and it is tentatively placed within the family Scolioneidaceae.

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