In Aragón (Spain), the salterio is named "chicotén" and it's played stricking the strings with a stick. See Wikipedia
https://saisaibatake.ame-zaiku.com/gakkipedia/enmei_psaltery.html https://saisaibatake.ame-zaiku.com/gakki/gakki_jiten_psalterium.html
This does seem to be a specific type of zither, in real use of the term at least.
more information is needed. it appears this is a different instrument, not just a simple alias adding.
https://saisaibatake.ame-zaiku.com/gakkipedia/enmei_psaltery.html
https://saisaibatake.ame-zaiku.com/gakki/gakki_jiten_psalterium.html