286 



HACHIRO YUASA 



6. The parts of the prepharynx : 



Postpharynx 



Pharynx 



Prepharynx 



/Epiph£ 



Propharynx jj^^^.^^^^ 



Ambipharynx 



Basipharynx 



[Parapharynx < 



I Hypopharynx • 



[Oscula 



7. The articulation of the appendages: 



Tormae 



Subgusta 

 Pharyngeae 

 Paralinguae (lingua- 



cutae, linguaten- 



dons) 

 Lingulae 

 Saliviae 

 Salivos (salivary 



duct) 



8. The sutures of the head : 



