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17,862 references
Hull, J. E. (1920a). The spider family Linyphiidae: an essay in taxonomy. The Vasculum 6: 7-11. -- Show included taxa
Kishida, K. (1920a). Netes [sic] on Yamia watasei, a new spider of the family Aviculariidae. Zoological Magazine,Tokyo 32: 299-307. -- Show included taxa
Mello-Leitão, C. F. de (1920a). An interesting new genus of Aviculariidae. Annals and Magazine of Natural History (9) 6(31): 141-143. doi: 10.1080/00222932008632425 -- Show included taxa
Rainbow, W. J. (1920a). Trap-door spiders of the "Chevert" Expedition. Records of the Australian Museum 13(3): 77-85. doi: 10.3853/j.0067-1975.13.1920.857 -- Show included taxa
Berland, L. (1920b). Note sur une araignée de Madagascar (Nemoscolus waterloti nov. sp.) et sur son industrie. Bulletin du Muséum National d'Histoire Naturelle de Paris 26: 384-387. -- Show included taxa
Chamberlin, R. V. (1920b). South American Arachnida, chiefly from the Guano Islands of Peru. Bulletin of the Brooklyn Institute of Arts and Sciences 3: 35-44. -- Show included taxa
Dalmas, R. de (1920b). Deux nouveaux genres d'araignées de la famille des Gnaphosidae. Bulletin du Muséum National d'Histoire Naturelle de Paris 26: 119-124. -- Show included taxa
Hull, J. E. (1920b). Blackwall's Spiders of Great Britain & Ireland. The Vasculum 6(2): 29-32. -- Show included taxa
Kishida, K. (1920b). [no English title]. Zoological Magazine,Tokyo 32: 362. -- Show included taxa
Mello-Leitão, C. F. de (1920b). Tetrapneumones trionychias novas do Brasil. Revista de Sciencias 4: 58-60. -- Show included taxa
Rainbow, W. J. (1920b). Arachnida from Lord Howe and Norfolk Islands. Records of the South Australian Museum 1(3): 229-272, pl. 28-31. -- Show included taxa
Berland, L. (1920c). Arachnides. Araneae (2e partie). In: Voyage de Ch. Alluaud et R. Jeannel en Afrique Orientale (1911-1912). Résultats scientifiques. IV. L. Lhomme, Paris, pp. 95-180. -- Show included taxa
Chamberlin, R. V. (1920c). The spiders of Saltair Beach (Arach., Aran.). Entomological News 31: 165-169. -- Show included taxa
Mello-Leitão, C. F. de (1920c). Algumas aranhas novas. Revista da Sociedade Brasileira de Sciencias 3: 169-176. -- Show included taxa
Chamberlin, R. V. (1920d). A new American Amaurobius (Arachnida, Araneina). Entomological News 31: 293. -- Show included taxa
Banks, N. (1921). New Californian spiders. Proceedings of the California Academy of Sciences 11: 99-102. -- Show included taxa
Dalmas, R. de (1921). Monographie des araignées de la section des Pterotricha (Aran. Gnaphosidae). Annales de la Société Entomologique de France 89: 233-328. -- Show included taxa
Drensky, P. (1921). Contribution à l'étude des araignées de la Macédoine or et de Pirine Planina. Spisanié na Beulgarskata Akademia na Naoukite 23: 1-80. -- Show included taxa
Emerton, J. H. (1921). Notes on Canadian and Arctic spiders. Psyche 28(5/6): 165-158. doi: 10.1155/1921/36012 -- Show included taxa
Gerhardt, U. (1921). Vergleichende Studien über die Morphologie des männlichen Tasters und die Biologie der Kopulation der Spinnen. Versuch einer zusammenfassenden Darstellung auf Grund eigener Beobachtungen. Archiv für Naturgeschichte 87A(4): 78-247, pl. 1-3. -- Show included taxa
Hewitt, J. (1921). On some lizards and arachnids of Natal. Annales of the Durban Museum 3: 3-11. -- Show included taxa
Jacobson, E. (1921). Thomisus decipiens Forbes, a spider supposed to imitate the excrement of birds. Tijdschrift voor Entomologie 64: 186-190, pl. 12. -- Show included taxa
Kishida, K. (1921). [Miscellaneous notes of arachnology, part 1, (3) and (4)]. Kagaku-sekai [The Scientific World] 14(8): 32-35. -- Show included taxa
Lessert, R. de (1921). Araignées du Kilimandjaro et du Merou (suite). 4. Clubionidae. Revue Suisse de Zoologie 28: 381-442. -- Show included taxa
Chamberlin, R. V. (1921a). A new genus and a new species of spiders in the group Phrurolitheae. The Canadian Entomologist 53(3): 69-70. doi: 10.4039/Ent5369-3 -- Show included taxa
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