New records of amphoroid diatoms (Bacillariophyceae) from Cachoeira River, Northeast Brazil

Brazilian Journal of Biology

Kp Cavalcante¹  Pi Tremarin¹  Tav Ludwig¹ 

关键词: Amphora;    Bahia state;    coastal river;    Halamphora;    Seminavis;    Amphora;    Bahia;    rio costeiro;    Halamphora;    Seminavis;   

DOI  :  10.1590/1519-6984.24512

来源: SciELO

【 摘 要 】

Amphoroid taxa have been revised in recent decades. Many species formerly assigned to Amphora have been transferred to other recently proposed genera, as Seminavis (Naviculaceae) and Halamphora (Catenulaceae). In Brazil, there are few studies focused on amphoroid taxonomy. This study presents a taxonomic investigation of five uncommon amphoroid taxa from Brazilian diatom flora: Seminavis pusilla, S. strigosa, Amphora ectorii, Halamphora ghanensis and Halamphora sp. Seminavis strigosa is identical in valve morphology and morphometrical data to Amphora twenteana, and its synonymy is proposed. Seminavis pusilla, poorly found in Brazilian waters, has expanded its distribution. Halamphora ghanensis is a new record to American continent while Amphora ectorii are new to Brazilian aquatic systems. Halamphora sp. has distinct ultrastructural features in relation to similar species and is probably new for science.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License