N.B.: considered a senior synonym of Mezenina Strand, 1932: 141 [urn:lsid:nmbe.ch:spidergen:04183] by Ramírez & Kochalka, 1993: 164; Mezenina is a replacement name for Mezenia Simon, 1897a: 101 [urn:lsid:nmbe.ch:spidergen:04712] (type M. dorsalis Simon, 1897), preoccuppied in fossil Hydrozoa by Stuckenberg, 1895.

Transferred to other genera:

Gayenna abdominalis (Nicolet, 1849) -- see Monapia

Gayenna absoluta Chamberlin, 1924 -- see Lupettiana

Gayenna affinis Tullgren, 1901 -- see Sanogasta

Gayenna alticola Simon, 1896 -- see Sanogasta

Gayenna andesiana Berland, 1913 -- see Josa

Gayenna approximata Tullgren, 1901 -- see Sanogasta

Gayenna bonariensis Mello-Leitão, 1940 -- see Sanogasta

Gayenna bonneti Mello-Leitão, 1947 -- see Arachosia

Gayenna chilensis Tullgren, 1902 -- see Tomopisthes

Gayenna cinerea Tullgren, 1901 -- see Acanthoceto

Gayenna citrina (Nicolet, 1849) -- see Monapia

Gayenna coccinea Simon, 1884 -- see Araiya

Gayenna colulata (Hogg, 1913) -- see Negayan

Gayenna cruziana Tullgren, 1901 -- see Monapia

Gayenna dilaticollis (Nicolet, 1849) -- see Monapia

Gayenna dixiana Chamberlin & Woodbury, 1929 -- see Anyphaena

Gayenna dubia Tullgren, 1901 -- see Sanogasta

Gayenna duplovittata Mello-Leitão, 1942 -- see Arachosia

Gayenna excepta Tullgren, 1901 -- see Negayan

Gayenna exigua Mello-Leitão, 1940 -- see Negayan

Gayenna fuegiana (Karsch, 1880) -- see Tomopisthes

Gayenna fuscotaeniata Keyserling, 1891 -- see Tasata

Gayenna gayi (Nicolet, 1849) -- see Philisca

Gayenna gemella (Nicolet, 1849) -- see Sanogasta

Gayenna ignota (Keyserling, 1887) -- see Sanogasta

Gayenna jollensis Schenkel, 1950 -- see Anyphaena

Gayenna keyserlingi (L. Koch, 1866) -- see Josa

Gayenna longiventris (Nicolet, 1849) -- see Oxysoma

Gayenna lutea (Nicolet, 1849) -- see Monapia

Gayenna maculatipes (Keyserling, 1878) -- see Sanogasta

Gayenna maculosa (Nicolet, 1849) -- see Sanogasta

Gayenna marginalis Banks, 1901 -- see Anyphaena

Gayenna marginata Keyserling, 1891 -- see Acanthoceto

Gayenna minuta (Keyserling, 1891) -- see Sanogasta

Gayenna minuta Banks, 1898 -- see Lupettiana

Gayenna minutissima Petrunkevitch, 1911 -- see Lupettiana

Gayenna monticola Chamberlin, 1916 -- see Sanogasta

Gayenna pallida Tullgren, 1902 -- see Araiya

Gayenna pampa (Holmberg, 1881) -- see Sanogasta

Gayenna paucilineata Mello-Leitão, 1945 -- see Sanogasta

Gayenna praesignis (Keyserling, 1891) -- see Arachosia

Gayenna proseni Mello-Leitão, 1944 -- see Arachosia

Gayenna punctulata Roewer, 1951 -- see Monapia

Gayenna reticulata Mello-Leitão, 1943 -- see Tasata

Gayenna riveti Berland, 1913 -- see Josa

Gayenna rufea (Nicolet, 1849) -- see Monapia

Gayenna rufithorax Tullgren, 1902 -- see Sanogasta

Gayenna saccata Tullgren, 1902 -- see Oxysoma

Gayenna sachalinensis Saito, 1935 -- see Anyphaena

Gayenna saniuana Chamberlin & Gertsch, 1928 -- see Anyphaena

Gayenna simoni Berland, 1913 -- see Josa

Gayenna skottsbergi Berland, 1924 -- see Sanogasta

Gayenna smaragdula (Nicolet, 1849) -- see Monapia

Gayenna stellata Simon, 1884 -- see Araiya

Gayenna striata (Keyserling, 1891) -- see Arachosia

Gayenna sulphurea (Nicolet, 1849) -- see Monapia

Gayenna taperae Mello-Leitão, 1929 -- see Tasata

Gayenna tridentata Simon, 1886 -- see Negayan

Gayenna trimaculata Simon, 1904 -- see Philisca

Gayenna tripunctata Mello-Leitão, 1941 -- see Tasata

Gayenna unidentata Tullgren, 1901 -- see Monapia

Gayenna x-signata Keyserling, 1891 -- see Sanogasta

In synonymy:

Gayenna dorsalis (Simon, 1897, T from Mezenina) = Gayenna americana Nicolet, 1849 (Ramírez & Kochalka, 1993: 165)

Nomina dubia:

Gayenna albiventris (Nicolet, 1849: 434, f, Chile, originally in Clubiona) -- Ramírez, 2003: 120

Gayenna gibbosa (Nicolet, 1849: 436, f, Chile, originally in Clubiona) -- Ramírez, 2003: 120

Gayenna lepida (Nicolet, 1849: 432, f, Chile, originally in Clubiona) -- Ramírez, 2003: 120

Gayenna lineata (Nicolet, 1849: 435, f, Chile, originally in Clubiona) -- Ramírez, 2003: 44

Gayenna puella (Nicolet, 1849: 426, f, Chile, originally in Clubiona) -- Ramírez, 2003: 120

Gayenna pulchella (Nicolet, 1849: 432, f, Chile, originally in Clubiona) -- Ramírez, 2003: 120

Nomen nudum:

Gayenna sakisimana Kishida, 1959: 374 (Japan/Okinawa) [urn:lsid:nmbe.ch:spidersp:054939] -- Brignoli, 1983c: 538