Blanche Sitznski, also known as Anaconda, is a member of the Serpent Society.
Blanche was bio-engineered by the Roxxon Oil to have strong elongating arms and be part of the third Serpent Squad, becoming Anaconda. When Sidewinder formed the Serpent Society, she was one of the original members.
When Viper took over the Serpent Society, Anaconda sided with her against Sidewinder. When Diamonback brought the Captain and his allies to help those who had remained loyal to Sidewinder, Anaconda caught Diamondback and faced D-Man, but Diamondback used an acid-tipped diamond on Anaconda's arm, which distracted her enough to be taken down by D-Man.