CYPRIS LARVA OF SAOCULINA OAKOINI. 



631 



TEXT-riGS. 3 — 6. — Diagrams illustrating the life cycle of Saccu- 

 lina. 3. Cypris fixed on hair; degeneration of larval organs, and 

 formation of Kentrogon (K). 4. Kentrogon, formation of dart 

 (</.); Em.ec. Embryonic ectoderm; Em.mes. Embryonic mesoderm. 

 5. Sacculina interna migrans (*S.) on gut of host. 6. Saccu- 

 lina interna, later stage, with central tumour {ci.) passing to 

 l)osition of evaginalion (X.). 



