👉 Crotalid protozoan found in various marine environments, primarily in warm water bodies like estuaries and rivers, where it is a primary host for the parasitic nematode parasite "Crotophagisyringophilus". This species exhibits a high degree of diversity and can be distinguished by its distinctive coloration. It's characterized by its large size, elongated body shape, and prominent, round-shaped eyes that are capable of detecting light.