Pent a stoma

(pen-tas’to-mah) [Gr. révre five + στόμα mouth]. A genus of endoparasitic, wormlike arthro P. constric'tum and Ῥ. tenioi'- des occur in the human subject. P. denticula’tum is the larva of Linguat'ula rhina’ria, occurring in the nose.