There are various types of soprano in opera that I vaguely remember. I really don't know what I'm talking about here, so someone please feel free to correct this:

coloratura: a soprano with a light agile voice specializing in elaborate embellishment in vocal music (from the dictionary)

lyric soprano: ?? Isn't this what Kathleen Battles is? Very high and very sweet.

mezzo soprano: I believe this was what Maria Callas sang. Strong, dramatic soprano voice somewhat lower than the others.

Where's Alice, who studies operatic singing to tell us?

My voice was alto in high school choir, but now that I sing bluegrass, I usually end up singing the tenor part, which is the third over the melody. Bluegrass also identifies a "high tenor" which is the fifth over the melody, I think, and baritone and high baritone. I've seen women singing the tenor part in Handel's Messiah and other places, so it's not just for boys anymore!