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 Nickel P. A., Elzinga R. J., 1970: Biology of Micromegistus bakeri Trägardh, 1948 (Acarina: Parantennulidae) with descriptions of immatures and redescription of adults. 10 pp. 

 Nicoara M., Cojocaru L., 2000: Dynamics of the entomological fauna living in aquatic ecosystems in Iasi area. 6 pp. Entomologica Basiliensia 22: 93-98.

 Nicolai V., 1987: Anpassungen rindenbesiedelnder Arthropoden an Borkenstruktur und Feinddruck. 7 pp. Spixiana 10(2): 139-145.

 Nicolai V., 1993: The arthropod fauna on the bark of deciduous and coniferous trees in a mixed forest of the Itasca State Park, MN, USA. 9 pp. Spixiana 16: 61-69.

 Niedbala W., 2001: Study on the diversity of ptyctimous mites (Acari, Oribatida) and quest for centres of its origin: the fauna of the Ethiopian region. 245 pp.  Sleva 20%!

 Niedbala W., 1967: Nowe stanowiska kilku rzadkich mechowców (Acari, Oribatei) w Polsce. 4 pp. Fragmenta Faunistica 13/16: 299-302.

 Niedbala W., 1969: Fauna mechowców (Acari, Oribatei) nadrzewnych w okolicach Poznania. 12 pp. [ARA 174] Polskie Pismo Entomologiczne 39(1): 83-94.

 Niedbala W., 1972: Mechowce (Acari, Oribatei) nowe dla fauny Polski. II. 12 pp. Fragmenta Faunistica 18/3: 33-44.

 Niedbala W., 1972: Mechowce (Acari, Oribatei) nowe dla fazny Polski oraz uwagi o kilku innych. III. 14 pp. Fragmenta Faunistica 18/10: 183-196.

 Niedbala W., 1981: Deux nouveaux Phthiracaridae de Turquie (Acari, Oribatida). 10 pp. [ARA 1381] Polskie Pismo Entomologiczne 51: 501-510.

 Niedbala W., 1981: Mesoplophora subtilis sp. n. du Pérou (Acari, Oribatida, Mesoplophoridae). 7 pp. [ARA 1382] Polskie Pismo Entomologiczne 51: 511-517.

 Niedbala W., 1982: Nouveaux Phthiracaridae tropicaux (Acari, Oribatida). 41 pp. [78459] Polskie Pismo Entomologiczne 52: 189-229.

 Niedbala W., 1982: Trois Phthiracaridae (Acari, Oribatida) originaires du Nepal. 15 pp. [78074] Folia Entomologica Hungarica (S.N.) 43(1): 95-109.

 Niedbala W., 1983: Deux nouveaux Phthiracaridae (Acari, Oribatida) des montagnes du Kazakhstan et de Kirghizie. 8 pp. [ARA 1384] Annales Zoologici 37/2: 63-70

 Niedbala W., 1983: Les nouveaux Phthiracaridae (Acari, Oribatida) du Caucase. 62 pp. Annales Zoologici 37/1: 1-62

 Niedbala W., 1983: Phthiracarus mundus sp. n. de Sybérie (Acari, Oribatida). 5 pp. [ARA 1386] Polskie Pismo Entomologiczne 53: 195-199.

 Niedbala W., 1984: Deux nouveaux Phthiracaridae de Papuasie, Nouvelle Guinée (Acari, Oribatida). 8 pp. [ARA 1387] Polskie Pismo Entomologiczne 53: 607-614.

 Niedbala W., 1984: Hoplophthiracarus vicinus sp. n. du Caucase (Acari, Oribatida, Phthiracaridae). 4 pp. [ARA 1388] Polskie Pismo Entomologiczne 53: 603-606.

 Niedbala W., 1991: Description of two new Euphthiracaroid species (Acari, Oribatida). 8 pp. [ARA345] Genus 2(1): 33-40.

 Niedbala W., 1991: Revision of Oribatid mites from the Berlese collection I. Systematic postion of Hoploderma hystricum Berlese, 1908 and Hoploderma pavidum Berlese, 1913 (Acari: Oribatida). 9 pp. [GEN 02327] [M39] 

 Niedbala W., 1991: Revision of Oribatid mites from the Berlese collection I. Systematic postion of Hoploderma hystricum Berlese, 1908 and Hoploderma pavidum Berlese, 1913 (Acari: Oribatida). 9 pp. [M39] [78075] Genus 2(4): 327-335.

 Niedbala W., 1993: Revision of Oribatid mites from Berlese’s collection. III. Redescription of species from Mesoplophoroidea and Euphthiracaroidea (Acari, Oribatida). 18 pp. [78463] Genus 4(1): 41-58.

 Niedbala W., 1997: Contribution to the knowledge of Euptyctima (Acari: Oribatida). 5 pp. [ARA1695] Genus 8(1): 81-101.

 Niedbala W., 1998: Ptyctimous mites of the Pacific Islands. Recent knowledge, origin, descriptions, diagnoses and zoogeography (Acari: Oribatida). 128 pp. Genus 9(4): 431-558. Sleva 50%!

 Niedbała W., 2000: The ptyctimous mites fauna of the Oriental and Australian regions and their centres of origin (Acari: Oribatida). 493 pp. Genus suppl. 10: 1-493. Sleva 50%!

 Niedbala W., 2002: Ptyctimous mites (Acari, Oribatida) of the Nearctic region. 261 pp.  Sleva 20%!

 Niedbala W., 2004: Supplement to the knowledge of ptyctimous mites of Oriental Region (Acari, Oribatida). 33 pp. [78833] Genus 15(3): 391-423.

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 Niedbala W., 2008: Supplement to the knowledge of ptyctimous mites of Neotropical Region (Acari: Oribatida). 90 pp. [M59] Genus 19(4): 729-818.

 Niedbala W., 2009: Contribution to the knowledge of Phthiracaroidea (Acari, Oribatida) of Australia. 6 pp. Acta zoologica cracoviensia 52B(1-2): 73-78.

 Niedbala W., 2009: Ptyctimous mites of southern Hemisphere (Acari: Oribatida). 6 pp. Genus 20(3): 557-562.

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 Niedbala W., Schatz H., 1996: Euptyctimous mites from the Galapagos Islands, Cocos Islands, and Central America. 79 pp. [78076] [M31] Genus 7(2): 239-317.

 Nielsen C. O., 1955. Studies on Enchytraeidae. 2. Field studies. 54 pp. 

 Nielsen L. B., 1968: Investigations on the microfauna of leaf litter in a danish beech forest. 9 pp. 

 Niem V. H., 1993: Phylogenetic and systematic position of Sesarma rubripes Rathbun, 1897 (Brachyura: Grapsidae). 11 pp. 

 Niemczyk E., 1978: The role of Orius minutus (L.) in controlling the European mite - Panonychus ulmi Koch on young apple trees. 9 pp. [ARA 175] [HEM 3084] Polskie Pismo Entomologiczne 48: 211-229.

 Niemczyk E., Olszak R., Popinska H., 1978: Rola pasozytów w organiczaniu zimujacych jaj znamionówki tarniówki - Orgyia antiqua L. w sadach jabloniowych. 11 pp. [ARA 1389] Polskie Pismo Entomologiczne 48: 665-675.

 Niermann U., 2010: Occurrence of Mnemiopsis leidyi A. Agassiz, 1865 and Beroe ovata Mayer, 1912 (Ctenophora) off the Belizean coast during February 2009. 18 pp. (in English). Verhandlungen des Naturwissenchaftlingen Vereins in Hamburg 45: 33-50.

 Nierstrasz H. F., Brender á Brandis G. A., 1930: Three new genera and five new species of parasitic Crustacea. 9 pp. 

 Niikawa I., 1986: On large rugose corals from the lower carboniferous of Fukuji, Gifu Prefecture. 7 pp. (in Japanese). Memoirs of the National Science Museum 19: 71-77.

 Nikolskij V. V., 1988: Novyj vid gamazovych kleščej roda Antennoseius Berlese, 1916 (Parasitiformes, Gamasina) iz Sibiri. 3 pp. 

 Nishikawa T., 1986: Some ascidians dredged around the Oki Islands, the Japan Sea. 10 pp. Memoirs of the National Science Museum 19: 175-184.

 Noodt W., 1973: Artenreichtum und Monardsches Prinzip bei Crustacea des Limnopsammons der Neotropis. 7 pp. Amazoniana 4(3): 255-261.

 Nörner C., 1882: Analges minor eine neue Milbe in Innern der Federspulen der Hühner. 27 pp. 

 Norris K. R., 1938: A population study of the red-legged earth mite (Halotydeus destructor) in Western Australia, with notes on associated mites and Collembola. 17 pp. 

 Norris K. R., 1944: Experimental determination of the influence of the red-legge earth mite (Halotydeus destructor) on a suberranean clover pasture in Western Australia. 34 pp. 

 Norris K. R., 1948: Seasonal severity of the attack of the red-legged earth mite (Halotydeus destructor) on subterranean clover. 9 pp. 

 Norton R. A., 1979: Damaeidae (Acari: Oribatei) collected by the Hungarian Soil Zoological Expeditions to South America. 10 pp. Folia Entomologica Hungarica (S.N.) 32(1): 55-64.