Glandula arenicola Verrill, 1872 – synonym of Cnemidocarpa mollis
Glandula fibrosa Stimpson, 1852 – synonym of Polycarpa fibrosa
Glandula mollis Stimpson, 1852 – synonym of Cnemidocarpa mollis
Glandula pusilla Herdman, 1891 – synonym of Polycarpa fibrosa
Glandula tubularis Sars, 1859 – synonym of Polycarpa fibrosa
Glossophorum sabulosum Huitfeldt-Kaas: 1896 – synonym of Polyclinum aurantium