Psyllium

PSY´LLIUM (Ψύλλιον, Ψύλλειον or Ψύλλα), a fortified emporium on the coast of Bithynia, between Crenides and Tium. (Ptol. 5.1.7; Arrian, Peripl. P. E. 14; Anonym. Peripl. P. E. p. 5; Marcian, p. 70; Steph. B. s. v. Ψύλλα; Tab. Peuting. erroneously calls it Scylleum.)