part of start stage end stage pelvic fin musculature superficial pelvic abductor ZFA:0000439 Ventral, superficial, paired muscle that originates from the posterior part of the protractor ishii tendon and the midline. At the midline the paired muscles contact each other. These are short muscles that attach to all pelvic fin rays except ray 1 and ray 2. superficial pelvic abductors abductor superficialis pelvicus TAO:0000439 zebrafish_anatomy abductor muscle unknown adult