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 Olszanowski Z., 1991: New mites of Holonothrus from Tasmania (Oribatida: Crotoniidae). 12 pp. [ARA 350] [M25] Genus.

 Olszanowski Z., 1994: A new species of Camisia von Heyden from Poland (Acari: Oribatida: Camisiidae). 6 pp. [ARA351] Genus 5(3): 209-214.

 Olszanowski Z., 1996: A monograph of the Nothridae and Camisiidae of Poland (Acari: Oribatida: Crotonoidea). 201 pp. Genus.

 Olszanowski Z., 1997: New oribatid species of the genus Crotonia from Brazil (Acari): Crotonidae). 7 pp. [ARA1698] Genus 8(3-4): 719-725.

 Olszanowski Z., 1997: Trimalaconothrus rafalskii n. sp. – a new oribatid mite species from Poland (Acari: Oribatida: Malaconothridae). 1 pp. [ARA1699] Genus 8(1): 103-108.

 Olszanowski Z., Bromberek K., 2011: Novonothrus lucasi spec. nov., a new moss mite from Australia (Acari: Oribatida: Nothridae). 9 pp. Genus 22(4): 667-675.

 Olszanowski Z., Rajski A., Niedbala W., 1996: Acari: Oribatida. Katalog fauny Polski XXXIV(9). 243 pp.  Sleva 50%!

 Olszanowski Z., Szywilewska A., Norton R. A., 2001: New moss mite of the Camisia from western Nearctic region (Acari: Oribatida: Camisiidae). 12 pp. (in English). [ARA 1890] [M25] [M26] Genus 12(3): 395-406.

 Olszanowski Z., Szywilewska-Szczykutowicz A., Blaszak C., Ehrnsberger R., 2007: Die Milben in der Zoologischen Staatssammlung München. Teil 10. Überfamilie Crotonioidea (I) (Acari, Oribatida). 9 pp. Spixiana 30(2): 159-167.

 Ono H., 1986: Spiders of the families Clubionidae, Gnaphosidae and Thomisidae from the Noto Peninsula and the southern part of Ishikawa Prefecture, Japan. 8 pp. Memoirs of the National Science Museum 19: 167-174.

 Ono H., 1993: Spiders of the genus Clubiona (Araneae, Clubionidae) from Eastern Hokkaido, Japan. 6 pp. Memoirs of the National Science Museum 26: 89-94.

 Ono H., 2001: Crab spiders of the family Thomisidae from the Kingdom of Bhutan (Arachnida, Araneae). 34 pp. Entomologica Basiliensia 23: 203-236.

 Ono H., Hishikawa Y., 1989: Taxonomic revision of the Heptathelid spiders (Araneae, Mesothelae) from Amami-Ôshima Island, the Ryukyus. 7 pp. (in Japanese). Memoirs of the National Science Museum 22: 119-125.

 Ono H., Jocqué R., 1986: Two new species of the family Zodariidae from Saudi Arabia (Arachnida: Araneae). 6 pp. [ARA1700] Fauna of Saudi Arabia 8: 6-11.

 Ono H., Shinkai E., 1988: Notes on the Japanese sandy-beach spider, Lycosa ishikariana (Araneae, Lycosidae), based upon fresh topotypical speciemens. 5 pp. Memoirs of the National Science Museum 21: 131-135.

 Ono H., Tanikawa A., 1990: A revision of the Japanese spiders of the genus Langbiana (Araneae, Zodariidae). 12 pp. Memoirs of the National Science Museum 23: 101-112.

 Oplotna H., Rajski A., 1983: Oppiella rafalskii sp. n. (Acarida, Oribatida). 19 pp. [M18] [M54] Acta zoologica cracoviensia 26/16: 543-562.

 Oschmann M., 1999: Verbreitung von Gallmilben (Acari) in Westthüringen. 7 pp. [ARA 1402] Thüringer Faunistische Abhandlungen 6: 61-67.

 Oštrec L., 1971: Fauna Oribateia u oraničnim tlima istočne Hrvatske. (I prilog poznavanju Oribateia Hrvatske). 6 pp. 

 Oštrec L., 1975: Oribatide u šumskim tlima borovca (Pinus strobus). 5 pp. 

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 Oudemans A. C., 1926: Chorioptes caprae (Del. Bourg. 1858). 22 pp. 

 Oudemans A. C., 1927: Laelaps-Studien. 47 pp. 

 Oudemans A. C., 1936: Neues über Pediculoides Targ. Tozz. 1878. 14 pp. 

 Ovtsharenko V. I., Fet V. Ya., 1980: Fauna and ecology of spiders (Aranei) of Badhyz (Turkmenian SSR). 6 pp. (in Russian). Entomologitsheskoe obozrenie 59(2): 442-447.

 Ovtsharenko V. I., Marusik J. M., 1990: Taksonomičeskie zamečanija o paukach (Aranei), opisannych A. Grube. 4 pp. 

 Ovtsharenko V. I., Saveljeva L. G., 1990: Analiz fauny paukov semějstva Gnaphosidae Vostočnogo Kazachstana. 3 pp. 

 Pande Y. D., Berthet P., 1975: Observations on the vertical distribution of soil Oribatei in a woodland soil. 17 pp. 

 Pantini P., Sassu A., 2009: I ragni dell’ isola dell’Asinara (Sardegna NW) (Arachnida, Araneae). 29 pp. (in Italian). Annali del Museo Civico di Storia Naturale di ‘Giacomo Doria’ 100: 619-647.

 Papadopoulos B., Büttiker W., Morel P. C., Aeschlimann A., 1991: Ticks (Acarina, fam. Argasidae & Ixodidae) of Oman. 9 pp. Fauna of Saudi Arabia 12: 200-208.

 Parent B., 1967: Population studies of Phytophagous mites and predators on apple in southwestern Quebec. 8 pp. 

 Park C. K., Atyeo W. T., 1971: The species of a new subfamily of feather mites, the Allodectinae (Analgoidea: Proctophyllodidae). 26 pp. 

 Park Ch. K., Atyeo W. T., 1971: A generic revison of the Pterodectinae, a new subfamily of feather mites (Sarcoptiformes: Analgoidea). 50 pp. 

 Patoleta B., 2008: Description of a new species of Lagnus L. Koch, 1879 from Fiji archipelago (Araneae: Salticidae). 4 pp. Genus 19(4): 717-720.

 Patoleta B., 2008: Description of new species of Palpelius Simon, 1903 from Fiji archipelago (Araneae: Salticidae). 7 pp. Genus 19(4): 721-727.

 Patoleta B., 2009: Description of a new species of Phintella Strand in Bösenbereg et Strand, 1906 from New Caledonia (Araneae: Salticidae). 5 pp. Genus 20(3): 539-543.

 Patoleta B., Gardzinska J., 2010: Description of a new species of Cytaea Keyserling 1882 from Fiji (Araneae: Salticidae). 5 pp. (in English). Genus 21(4): 631-635.

 Pavlík, 1982: Příspěvek k poznání arachnofauny agrocenoz. 4 pp. [M25] [ARA 352] Zprávy Československé společnosti Entomologické při ČSAV 18: 33-36.

 Pavlík, 1982: Příspěvek k poznání arachnofauny agrocenoz. 4 pp. [ZCS 18033] [M25] 

 Pavlitshenko P. G., 1991: Izmentshivost nekotorykh taksonomitsheskikh priznakov Trichoribates trimaculatus (Oribatei, Ceratozetidae). 4 pp. Vestnik Zool. 1991(2): 76-79.

 Pavlitshenko P. G., 1991: Novye vidy oribatidnykh kleshtshej (Oribatei, Ceratozetoidea) s Ukrainy. 7 pp. Vestnik Zool. 1991(6): 19-25.

 Pecina P., 1980: Additional data on several Czechoslovak members of the subfamily Trachyuropodinae Berlese, 1918 (Uropodidae: Mesostigmata). 32 pp. [78476] Acta Universitas Carolinae – Biologica 1978: 357-388.

 Pecina P., 1980: Additional knowledge of members of the subgenus Trachytes Michael, 1894 (Acari: Mesostigmata) from Czechoslovakia. 19 pp. [78477] Acta Universitas Carolinae – Biologica 1978: 389-407.

 Pegram R. G., Zivkovic D., Keirans J. E., Wassef H., Büttiker W., 1989: The Rhipicephalus sanguineus group (Acari: Ixodidae) of Saudi Arabia. 13 pp. Fauna of Saudi Arabia 10: 65-77.

 Pekár, 1994: The first record of Zodarion rubidum and Ostearius melanopygius for Slovakia. (Arachnida: Araneae: Zodariidae, Linyphiidae). 4 pp. Entomological Problems 25(1): 97-100.

 Penman D. R., Chapman R. B., Bowie M. H., 1988: Selection for behavioral resitance in twospotted spider mite (Acari: Tetranychidae) to Flucythrinate. 5 pp. 

 Pérez-íňigo C., 1969: Los ácaros y la importancia de su estudio. 19 pp. 

 Pesarini C., 1991: Primo contributo per una fauna araneologica del Ferrarese (Arachnida: Araneae) 30 pp. Quad. Studi Nat. Romagna 4: 5-34.

 Petanovic R., 1985: Studies on Eriophyid mites (Acarida: Eriophyoidea) of Yugoslavia, I. 6 pp.