<p>The tube feet of adult sea urchins are organs of locomotion, adsorption, and respiration and comprise a calcium carbonate skeleton in the form of a podial disc and ossicles in connective tissue. The large diameter of the rosette and the abundance of podial ossicles have been suggested to enhance adhesion strength, facilitating attachment to both substrates and food. Furthermore, the morphology of podial ossicles is considered a useful taxonomic trait for distinguishing related species. Various temnopleurid species coexist in the Yamaguchi area, and these species inhabit the same habitats without firmly attaching to substrates. In this study, the podial skeletons of these temnopleurids were analyzed. The tube feet of all five species had rosettes with four reticulated skeletal elements. The diameter of the rosettes was consistently larger on the oral side than around the periproct in all species, and species with larger body sizes had larger rosette diameters. Although the tube feet of <i>Temnopleurus reevesii</i> and <i>T. hardwickii</i> contain podial ossicles, those of <i>T. toreumaticus</i>,<i> Temnotrema sculptum</i>, and <i>Mespilia globulus</i> have no ossicles. This might stem from adaptation of the tube foot to different environments, shaped by differences in skeletal structure, ambulacral pore arrangement, and test size.</p>