
Rhizus or Rhizous (Greek: Ριζούς (ο)) was a town and polis of Magnesia in ancient Thessaly, whose inhabitants were transported by Demetrios Poliorketes to Demetrias upon the foundation of the latter city. According to Periplus of Pseudo-Scylax, Rhizus was outside the Pagasaean Gulf, on the exterior (Aegean) shore. In Strabo's time, it was a village dependent on Demetrias. Coins minted by Rhizus have been found, dated in the 4th century BCE.
The site of Rhizus is at the modern village of Tarsanas (Ταρσανάς).
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This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Rhizus". Dictionary of Greek and Roman Geography. London: John Murray.
39°48′52″N 22°49′11″E / 39.81450°N 22.81980°E