URMO Taxon list
Alaskagorgia aleutiana Sánchez & Cairns, 2004
Calcigorgia beringi (Nutting, 1912)
Cryogorgia koolsae Williams, 2005
Cyclomuricea flabellata Nutting, 1908
Pseudothelogorgia hartogi (van Ofwegen, 1990)
Thesea acanthoides (Thomson & Russell, 1909)
Thesea alternata (Nutting, 1910)
Thesea antiope Bayer, 1959
Thesea bebrycoides (Nutting, 1910) accepted as Thesea acanthoides (Thomson & Russell, 1909)
Thesea bicolor Deichmann, 1936
Thesea campanulifera (Nutting, 1910) accepted as Discogorgia campanulifera (Nutting, 1910)
Thesea citrina Deichmann, 1936
Thesea dendritica (Nutting, 1910)
Thesea filigella (Thomson & Dean, 1931) accepted as Astrogorgia filigella (Thomson & Dean, 1931)
Thesea flava Nutting, 1910 accepted as Pseudothesea flava (Nutting, 1910)
Thesea flexilis Nutting, 1910 accepted as Pseudothesea flexilis (Nutting, 1910)
Thesea gracilis (Gray, 1868)
Thesea grandiflora Deichmann, 1936
Thesea guadalupensis Duchassaing & Michelotti, 1864
Thesea hebes Deichmann, 1936
Thesea immersa Nutting, 1910 accepted as Pseudothesea immersa (Nutting, 1910)
Thesea mitsukurii (Kinoshita, 1909) accepted as Euplexaura mitsukurii (Kinoshita, 1909)
Thesea nutans (Duchassaing & Michelotti, 1864) accepted as Caliacis nutans (Duchassaing & Michelotti, 1864)
Thesea pallida Nutting, 1910 accepted as Pseudothesea pallida (Nutting, 1910)
Thesea parviflora Deichmann, 1936
Thesea placoderma Nutting, 1910 accepted as Pseudothesea placoderma (Nutting, 1910)
Thesea plana Deichmann, 1936 accepted as Lytreia plana (Deichmann, 1936)
Thesea pulchra (Nutting, 1910) accepted as Paraplexaura pulchra (Nutting, 1910)
Thesea reticuloides (Nutting, 1910) accepted as Paraplexaura reticuloides (Nutting, 1910)
Thesea rigida (Thomson, 1927)
Thesea rugosa Deichmann, 1936
Thesea sanguinea Nutting, 1910 accepted as Echinogorgia sanguinea (Nutting, 1910)
Thesea simplex Nutting, 1910 accepted as Pseudothesea simplex (Nutting, 1910)
Thesea solitaria (Pourtalčs, 1868)
Thesea talismani Grasshoff, 1986
Thesea variabilis (Studer, 1894)