Initial dissection began on the thornback ray, with an incision about 2cm anterior of the cloaca, working in the anterior direction for approximately 5cms. This location was chosen for initial incision due to its location adjacent to the pectoral and pelvic fin. Skin was then removed, working laterally to expose the metapterygium, and our first look at the extended abductor superficialis (pictured in Fig.1). Initially it appears like the abductor superficialis