The Collaborative International Dictionary
Chlamydate
Chlamydate \Chlam"y*date\, a. [L. chlamydatus dressed in a military cloak. See Chlamys.] (Zo["o]l.) Having a mantle; -- applied to certain gastropods.
Wiktionary
chlamydate
a. (context zoology of some molluscs English) Having a mantle or fringe