AUTHOR=Ma Mingzhen , Li Yuqing , Ma Honggang , Al-Rasheid Khaled A. S. , Warren Alan , Wang Yurui , Yan Ying TITLE=Corrigendum: Morphology and Molecular Phylogeny of Four Trachelocercid Ciliates (Protozoa, Ciliophora, Karyorelictea) Found in Marine Coastal Habitats of Northern China, With Description of a New Genus, Two New Species and a New Combination JOURNAL=Frontiers in Marine Science VOLUME=8 YEAR=2021 URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2021.766062 DOI=10.3389/fmars.2021.766062 ISSN=2296-7745