Hα rotation curves for 324 galaxies (except for galaxies 211500, 211564, 251792, 250266, 251814, 250786, 270148, and 530541, for which the rotation curves are obtained from an [N II] emission line), folded about the kinematic centers. Only a portion of the full sample of rotation curves is displayed here; the remainder can be obtained by contacting D. A. D. Names of the galaxy and the corresponding parent cluster are given along with the CMB radial velocity. In each panel, two dashed lines are shown: the horizontal line indicates the adopted half‐velocity width, W/2, which in some cases arises from an extrapolation to the rotation curve or from a 21 cm width (see Table 2); the vertical line is at R_opt, the radius containing 83% of the I‐band flux. A fit to the rotation curve is indicated by a solid line. Note that the rotation curves are not deprojected to an edge‐on orientation.