xiǎn, xiàn
a variety of bivalves
Evolution

Seal script
Shuowen (~100 AD)
Clerical script
Jin dynasty (266-420 AD)Simplified script
Modernxiǎn, xiàn
a variety of bivalves
Seal script
Shuowen (~100 AD)Clerical script
Jin dynasty (266-420 AD)Simplified script
Modern