Candidates for TheKey, epitheta from Peters' check-list v4 and v5:
porphyreolopha v4:8
Gallirex porphyreolophus porphyreolophus (Vigors)
Corythaix porphyreolopha Vigors, Proc. Comm. Zool. Soc. London, pt. 1, 1831, p. 93. (Africa inland from Algoa Bay.)
jonhstoni v4:8
Ruwenzorornis johnstoni kivuensis Neumann
Ruwenzorornis jonhstoni [sic] kivuensis Neumann, Bull. Brit. Orn.
Cl., 21, 29 Feb., 1908, p. 54. (Western Kivu Volcanoes, 2400 metres.)
aneicaudus v4:55
Rhamphococcyx curvirostris oeneicaudus (Verreaux and Verreaux)
Phaenicophaeus aneicaudus J. and E. Verreaux, Rev. et Mag. Zool. (2), 7, 1855, p. 357.
soumagnii v4:77
Tyto soumagnei (Milne-Edwards)
[...]
Heliodilus Soumagnii Grandidier, Bull. Soc. Philom. Paris (7), 2, 1878 (séance of 29 Dec., 1877), p. 66. (Madagascar.)
maculicaudatus v4:201
Caprimulgus maculicaudus (Lawrence)
[...]
Antiurus maculicaudatus [sic] romainei Carriker, Proc. Acad. Nat. Sci. Phila., 87, 1935, p. 320. (Chatarona, near Reyes, Beni, Bolivia.)
abessynicus v4:251
Apus affinis abessynicus (Streubel)
Cypselus abessynicus Streubel, Isis von Oken, 1848, col. 354. (Ethiopia = Massawa, Eritrea as fixed by Grant and Mackworth-Praed, Bull.
Brit. Orn. Cl., 58, 1937, p. 21.)
frazeri v5:7
Threnetes ruckeri venezuelensis Cory
Threnetes frazeri [sic] venezuelensis Cory, Field Mus. Nat. Hist. Publ., Orn. Ser., 1, 1913, p. 286.
guyi v5:7
Phaethornis guy apicalis (Tschudi)
[...]
Guyornis Guyi napensis Simon, Hist. Nat. Trochil., 1921, p. 18, 258. (Valley of the Napo, eastern Ecuador.)
anthropilus v5:11
Phaethornis anthophilus anthophilus (Bourcier)
[...]
Phaethornis anthropilus [sic] fuscicapillus Cory, Field Mus. Nat. Hist. Publ., Orn. Ser., 1, 1913, p. 288. (Orope, Zulia, Venezuela.)
lacondaminei v5:17
Eutoxeres condamini condamini (Bourcier)
[...]
Eutoxeres LaCondaminei Simon, Hist. Nat. Trochil., 1921, p. 24, 263. Emendation.
condaminei v5:17
Eutoxeres condamini gracilis Berlepsch and Stolzmann
Eutoxeres condaminei gracilis Berlepsch and Stolzmann, Proc. Zool. Soc. London, 1902, vol. 2, p. 19. (Vitoc, Perit.)
gautemalae v5:69
Amazilia cyanura guatemalae (Dearborn)
Saucerottea cyanura gautemalae [sic] Dearborn, Field Mus. Nat. Hist. Publ., Orn. Ser., 1, 1907, p. 97.
yucatenensis v5:70
Amazilia yucatenensis cerviniventris (Gould)
Amazilius cerviniventris Gould, Proc. Zool. Soc. London, pt. 24, 1856, p. 150. (Córdoba, Vera Cruz.)
urochrysa v5:79
Chalybura urochrysia incognita Griscom
Chalybura urochrysa incognita Griscom, Am. Mus. Novit., no. 293, 1928, p. 3. (Tacarcuna, eastern Panamá.)
urochrysea v5:80
Chalybura urochrysia urochrysia (Gould)
[...]
Chalybura urochrysea Gould, Intro. Trochil., 1861, p. 72. (Panamá.)
ensiferus v5:104
?Ensifera ensifera caerulescens (W. P. Lowe)
Docimastes ensiferus caerulescens W. P. Lowe, Ibis, 1939, p. 73. (South America.)
clarissae v5:106
Heliangelus clarisse clarisse (Longuemare)
[...]
?Heliangelus Clarissae var. fulvicrissa Simon, Hist. Nat. Trochil., 1921, p. 179; 367. (Bogotá, Colombia.) Trade skin.
microrrynchus v5:117
Ramphomicron microrhynchum andicolum (Simon)
Rhamphomicrus microrrynchus [sic] andicola Simon, Hist. Nat. Trochil., 1921, p. 199; 379. (Andes of Mérida, Venezuela.)
thyrianthina v5:120
Metallura tyrianthina oreopola Todd
[...]
Metallura thyrianthina [sic] harterti Schlüter, Falco, 9, Oct., 1913, p. 42. (Mérida, Venezuela.)
camerunense v5:160
Heterotrogon vittatus camerunensis Reichenow
Heterotrogon vittatum camerunense Reichenow, Vög. Afr., 2, 1902, p. 216. (Cameroon.)
rufidorsus v5:185
Ceyx rufidorsum jungei Ripley
Ceyx rufidorsus jungei Ripley, Zoologica, 27, 1942, p. 59. (Ajer Dingen, Simalur Island.)
macrorhina v5:192
Melidora macrorrhina waigiuensis Hartert
Melidora macrorhina waigiuensis Hartert, Nov. Zool., 36, 1930, p. 99. (Waigeu.)
semicaeruleus v5:197
Halcyon leucocephala centralis Neumann
Halcyon semicaeruleus centralis Neumann, Journ. f. Orn., 53, 1905, p. 189. (Bussisi, southern shore of Lake Victoria.)
westralasianus v5:205
?Halcyon sancta westralasiana Campbell
Halcyon westralasianus Campbell, Emu, 1, 1901, p. 25. (Vasse, South-West Australia.)
nagmiensis v5:259
Tockus erythrorhynchus ngamiensis Roberts
Tockus erythrorhynchus nagmiensis [sic] Roberts, Ann. Transvaal Mus., 15, 1932, p. 25. (Maun, Ngamiland.)
exaratus v5:263
Penelopides exarhatus sanfordi (Stresemann)
Rhabdotorrhinus exaratus [sic] sanfordi Stresemann, Orn. Monatsb., 40, 1932, p. 111. (Masembo, 550 meters, Mengkoka Mountains, Celebes.)
-kweetal