Morphomolecular studies of Ceratocorys species (Dinophyceae, Gonyaulacales, Protoceratiaceae) reveal that Ceratocorys armata, C. gourretii, and C. horrida are conspecific and should be considered formae of C. horrida. - Nguyen-Ngoc L; Larsen J; Doan-Nhu H; Mertens KN; Lundholm N; Nguyen VX; Krock B; Pham HM; Iwataki M; Plewe S; Bilien G; Dao HV; et al. (Journal of phycology, 2025)