Genus
Chlamys (Dwarf fan shells)
Chlamys hastata. Photo: (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC)
The chlamys (Ancient Greek: χλαμύς, gen.: χλαμύδος) was an Ancient Greek type of rather short cloak. By the time of the Byzantine Empire it was, in a much longer form, part of the state costume of the emperor and high officials, surviving as such until at least the 12th century AD.