Publicación online disponible en: http://www.icm.csic.es/scimar/index.php[EN] The holotypes of three species inquirendae siphonophores collected in Japanese waters and described by Tamiji Kawamura were re-examined. It is considered that Bathyphysa japonica is not a valid species because there are no characters that distinguish it from other Bathyphysa species; Athorybia longifolia is an incorrectly described specimen of A. rosacea; and Forskalia misakiensis is a wrongly described and badly preserved specimen, probably of F. edwardsi.[ES] Han sido reexaminados los holotipos de tres sifonóforos species inquirendae recogidos en aguas japonesas y que fueron descritos por Tamiji Kawamura. Se considera que Bathyphysa japonica no es una especie válida porque no se observan caracteres que la distingan de otras especies de Bathyphysa. Athorybia longifolia es un espécimen de A. rosacea descrito incorrectamente; y Forskalia misakiensis es un espécimen descrito erroneamente y preservado inadecuadamente, probablemente de F. edwardsi.This study was sponsored by the Japanese Society for the Promotion of Science.Peer reviewed