Horneridae Smitt, 1867
Hornera airensis Maplestone, 1903
Hornera americana D'Orbigny, 1842
Hornera anomala
Hornera antarctica Waters, 1904
Hornera australis Kirchenpauer, 1869
Hornera bipunctata Roemer, 1863
Hornera brancoensis Calvet, 1907
Hornera caespitosa Busk, 1875
Hornera canui Calvet, 1911
Hornera cerviformis Ortmann, 1890
Hornera circumporosa Beutler, 1908
Hornera circumsulcata Hejjas, 1894
Hornera conferta
Hornera crispa Defrance, 1821
Hornera curva MacGillivray, 1895
Hornera curvirostra Hejjas, 1894
Hornera diffusa MacGillivray, 1895
Hornera edwardsii d'Archiac, 1847
Hornera elegans Defrance, 1821
Hornera elevata MacGillivray, 1895
Hornera elongata
Hornera erugata Hayward & Cook, 1983
Hornera falklandica Borg, 1944
Hornera fibrosa Reuss, 1865
Hornera foliacea (MacGillivray, 1869)
Hornera frondiculata Lamouroux, 1821
Hornera galeata Smitt, 1872
Hornera geniculata
Hornera hybrida (d'Archiac, 1847)
Hornera involuta MacGillivray, 1895
Hornera lamellosa Roemer, 1863
Hornera lasarevi Androsova, 1968
Hornera lichenoides (Linnaeus, 1758)
Hornera nitens Roemer, 1863
Hornera pectinata Busk, 1861
Hornera prominens MacGillivray, 1895
Hornera pseudolichenoides Gontar, 1996
Hornera quadrata MacGillivray, 1895
Hornera ramosa MacGillivray, 1887
Hornera retepora
Hornera reteporacea Milne Edwards, 1838
Hornera rhipis Busk, 1859
Hornera robusta MacGillivray, 1883
Hornera rubeschi Reuss, 1848
Hornera rugulosa Jullien, 1882
Hornera smitti Borg, 1944
Hornera striata Milne-Edwards
Hornera sulcata MacGillivray, 1895
Hornera tenuis MacGillivray, 1895
Hornera tortuosa Roemer, 1863
Hornera trabecularis Reuss, 1869
Hornera trigonia
Hornera tuberculata MacGillivray, 1895
Hornera versipalma (Lamarck, 1816)
Hornera violacea (Linnaeus, 1758)