Exuviaella

…Only asexual reproduction by binary fission is known for this species, and they often proliferate in large numbers in inland bays, causing red tides. In the past, they were classified as Prorocentrum if they had spines at the front end of the cells, and Exuviaella if they did not, but now many scholars treat them as the same genus. More than 90 species have been described worldwide, but classification is not easy due to their simple structure. …

*Some of the terminology that mentions "Exuviaella" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…生殖には2分裂の無性生殖のみが知られ，内湾域などでしばしば大繁殖して赤潮を出現させる。細胞前端にとげ状突起をもつものをProrocentrum，もたないものをExuviaellaとして以前は区別したが，現在は両者を同一属に扱う学者が多い。全世界で90種以上の記載があるが，体制が単純なため種の分類は容易でない。…

※「Exuviaella」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報