A sailboat can be a ketch, a yawl, a cutter, a schooner, or a sloop depending on how many masts it has, where they are located, and how many sails it can carry.
Chrysalis had a single mast slightly forward of her center. She could carry two sails. She was a sloop.
Click on the links below to learn more about sloop-rigged sailboats and Chrysalis.