It's possible. I've had the mother nem for about 7 years. When I got it they were all just called bubble tip nems. I was told by a shop owner that was buying some from me that these were Black Widow a couple of years ago. He could have been wronge. It's hard to get a good pic of the mother, but she's about 1.5 feet across.The ones you have I believe are Sherman Rose bta's. A very sought after anemone and actually cost more than Black Widows. Very nice!