Mesomycetozoea

**Definition:** A class of parasitic and saprophytic microorganisms whose origins can be traced near the animal-fungal divergence. Members of the class are typically pathogens of FISHES, but there are exceptions. There are two recognized orders: Icthyophonida and Dermocystida.

**Tree numbers:** - B01.500

**Synonyms:** - Ichthyosporea - DRIP Clade