Procercoid

The procercoid is the second^[1] larval stage of some tapeworms, which typically develops inside of copepods^[2] following their ingestion of the coracidium parasite structure that contains the larval oncosphere.^[1] The flatworm in this stage is not enclosed in a protective cyst, but is infectious to the next intermediate host.^[3] Procercoids resemble their adult forms in pathways of energy metabolism. They are basically anaerobic, lacking a complete Krebs cycle, and rely on glycolysis.^[3]

See also

• Plerocercoid, the last larval stage