As of 1982 (date of my primary source), there were about 25 known and I know of no others found since then (the last one found was in 1968). I have them sorted both by date of observation and date found; also a total by observer. No major controversies: two sources give different numbers by Lemonnier; the spelling of Lemonnier's name varies slighty depending on the source; and one of the astronomy magazines had an article about the hairbag story several years ago.