An icon of the Holy 40 Virgin-martyrs and their teacher the Hieromartyr Ammon the Deacon at Heraclea in Thrace (321-323).
Their names are:
Adamantine, Athena, Akrive, Antigone, Arivea, Aspasia, Aphrodite, Dione, Dodone, Elpinike, Erasmia, Erato, Ermeneia, Evterpe, Thaleia, Theanoe, Theano, Theonymphe, Theophane, Kalliroe, Kalliste, Kleio, Kleonike, Kleopatra, Koralia, Lambro, Margarita, Marianthe, Melpomene, Moscho, Ourania, Pandora, Penelope, Polymnia, Polynike, Sapfo, Terpsichore, Troada, Haido, and Harikleia.
More can be read about them here: http://full-of-grace-and-truth.blogspot.com/2009/09/forty-virgin-martyrs-and-their-deacon.html
And here: http://www.saintnicodemos.org/articles/christianmartyrdom.php