Id seriously consider taking these down to an auction house or dealer and have a word with them, as i know complete "monkey bands" can fetch some good money, not sure about individual pieces though.
Im not saying these are the genuine meissen figures which will be worths mega-money, BUt i would say they are defitnely not Japanese, possibly a later german reproduction.......but it dosnt hurt to find out.
Heres a site i found selling individual pieces
http://www.thebestthings.com/antiques/monkeysm.htm
and another with a band
http://www.goantiques.com/scripts/images,id,692904.html