• Amphiroa abbreviata Duchassaing, 1850: calcified articulated
• Amphiroa americana Johnson & Ferris: calcified articulated
• Amphiroa anastomosans Weber-van Bosse, 1904: calcified articulated
• Amphiroa anceps (Lamarck) Decaisne, 1842: calcified articulated
• Amphiroa anchiverricosa Johnson & Ferris: calcified articulated
• Amphiroa angustata: calcified articulated
• Amphiroa angustivirgata J.P.Beckmann & R.Beckmann: calcified articulated
• Amphiroa annobonensis Pilger, 1919: calcified articulated
• Amphiroa annulata Me.Lemoine, 1929: calcified articulated
• Amphiroa aspergillum: calcified articulated
• Amphiroa beauvoisii J.V.Lamouroux, 1816: calcified articulated
• Amphiroa boviesii Kützing: calcified articulated
• Amphiroa bowerbankii Harvey, 1849: calcified articulated
• Amphiroa brasiliana Decaisne, 1842: calcified articulated
• Amphiroa breviarticulata Areschoug, 1852: calcified articulated
• Amphiroa canaliculata G.Martens, 1866: calcified articulated
• Amphiroa capensis Areschoug, 1852: calcified articulated
• Amphiroa carpiana (Dragastan) Dragastan: calcified articulated
• Amphiroa cladoniiformis Meneghini ex Kützing: calcified articulated
• Amphiroa compressa M.Lemoine, 1929: calcified articulated
• Amphiroa comprexa Ishijima, 1944 †: calcified articulated
• Amphiroa crassa J.V.Lamouroux, 1824: calcified articulated
• Amphiroa crosslandii Me.Lemoine, 1929: calcified articulated
• Amphiroa crustiformis E.Y.Dawson, 1963: calcified articulated
• Amphiroa cryptarthrodia Zanardini, 1843: calcified articulated
• Amphiroa cumingii Montagne, 1844: calcified articulated
• Amphiroa currae Ganesan, 1971: calcified articulated
• Amphiroa cylindrica Ishijima, 1944 †: calcified articulated
• Amphiroa delicatula Lemoine: calcified articulated
• Amphiroa desmoulinii Duchassaing, 1850: calcified articulated
• Amphiroa dilatata Decaisne: calcified articulated
• Amphiroa dimorpha Me.Lemoine, 1929: calcified articulated
• Amphiroa droogeri Souaya: calcified articulated
• Amphiroa echigoensis Yendo, 1902: calcified articulated
• Amphiroa elongata Ishijima, 1944 †: calcified articulated
• Amphiroa ephedracea Decaisne: calcified articulated
• Amphiroa ephedraea (Lamarck) Decaisne, 1842: calcified articulated
• Amphiroa exilis Harvey, 1849: calcified articulated
• Amphiroa firma Kützing: calcified articulated
• Amphiroa foliacea J.V.Lamouroux, 1824: calcified articulated
• Amphiroa formosana Ishijima, 1944 †: calcified articulated
• Amphiroa fragilissima (Linnaeus) J.V.Lamouroux, 1816: calcified articulated
• Amphiroa franciscana W.R.Taylor, 1945: calcified articulated
• Amphiroa galapagensis W.R.Taylor, 1945: calcified articulated
• Amphiroa galerita Giffen: calcified articulated
• Amphiroa gracilis Harvey, 1855: calcified articulated
• Amphiroa guatemalensis J.H.Johnson & Kaska, 1965 †: calcified articulated
• Amphiroa hancockii W.R.Taylor, 1942: calcified articulated
• Amphiroa hanzawai Ishijima: calcified articulated
• Amphiroa harveyana Tittley, L.M.Irvine & T.Kartawick, 1984: calcified articulated
• Amphiroa hayasakae Ishijima, 1944 †: calcified articulated
• Amphiroa heterarthra Trevisan: calcified articulated
• Amphiroa howei Ishijima, 1938 †: calcified articulated
• Amphiroa howensis A.H.S.Lucas, 1935: calcified articulated
• Amphiroa involuta Kützing: calcified articulated
• Amphiroa iraquensis J.H.Johnson: calcified articulated
• Amphiroa irregularis Kützing, 1843: calcified articulated
• Amphiroa itonoi Srimanobhas & Masaki, 1987: calcified articulated
• Amphiroa johansenii Woelkerling, 1983: calcified articulated
• Amphiroa klochkovana A.S.Harvey, W.J.Woelkerling & A.J.K.Millar, 2009: calcified articulated
• Amphiroa kotobukiana Ishijima, 1944 †: calcified articulated
• Amphiroa kuetzingiana Trevisan, 1845: calcified articulated
• Amphiroa laurentii Duchassaing, 1850: calcified articulated
• Amphiroa lemoineae Souaya: calcified articulated
• Amphiroa longa Duchassaing, 1850: calcified articulated
• Amphiroa longissima W.Ishijima, 1938 †: calcified articulated
• Amphiroa lucida J.V.Lamouroux: calcified articulated
• Amphiroa magdalenensis E.Y.Dawson, 1953: calcified articulated
• Amphiroa maletractata Simonsen, 1992: calcified articulated
• Amphiroa medians J.H.Johnson: calcified articulated
• Amphiroa minutissima W.R.Taylor, 1945: calcified articulated
• Amphiroa misakiensis Yendo, 1902: calcified articulated
• Amphiroa nobilis Kützing, 1849: calcified articulated
• Amphiroa nodularia (Pallas) Decaisne: calcified articulated
• Amphiroa nodulosa Kützing, 1858: calcified articulated
• Amphiroa pacifica Kützing, 1858: calcified articulated
• Amphiroa peruana Areschoug ex W.R.Taylor, 1945: calcified articulated
• Amphiroa polymorpha Me.Lemoine, 1929: calcified articulated
• Amphiroa prefragilissima Me.Lemoine, 1918 †: calcified articulated
• Amphiroa pusilla Yendo, 1902: calcified articulated
• Amphiroa rigens (Pallas) Trevisan: calcified articulated
• Amphiroa rigida J.V.Lamouroux, 1816: calcified articulated
• Amphiroa rubra (Philippi) Woelkerling, 1983: calcified articulated
• Amphiroa ryukyuensis Ishijima, 1938 †: calcified articulated
• Amphiroa scutiloba Decaisne: calcified articulated
• Amphiroa setacea Kützing, 1849: calcified articulated
• Amphiroa shimodaensis Ishijima: calcified articulated
• Amphiroa shirahamaensis Ishijima: calcified articulated
• Amphiroa spectabilis Harvey: calcified articulated
• Amphiroa subcylindrica E.Y.Dawson, 1953: calcified articulated
• Amphiroa taiwanica Ishijima, 1944 †: calcified articulated
• Amphiroa tani Ishijima: calcified articulated
• Amphiroa taylorii E.Y.Dawson, 1953: calcified articulated
• Amphiroa tenuis W.Ishijima, 1938 †: calcified articulated
• Amphiroa toddae Souaya: calcified articulated
• Amphiroa tribulus (J.Ellis & Solander) J.V.Lamouroux, 1816: calcified articulated
• Amphiroa ungulata Montagne & Millardet, 1862: calcified articulated
• Amphiroa valonioides Yendo, 1902: calcified articulated
• Amphiroa vanbosseae Me.Lemoine, 1929: calcified articulated
• Amphiroa wanaiensis Ishijima, 1944 †: calcified articulated