Obuch J., 1994: Príspevok k pomernému zastúpeniu mikromammálií v Turci. 6 pp.
 
ZME 66423
Ocana A., Brito A., Nunez J., 1992: A new species of Sarcodictyon (Anthozoa: Stolonifera) from Tenerife, Canry Islands. 6 pp. [EVE 543] Zoologische Mededelingen 66(31): 423-428.
 
AQA 402
Ochs G., 1929: On some new and interesting sp. of water beetles of the family Gyrinidae in the United States National Museum. 6 pp.
 
AQA 414
Ochs G., 1937: Nachtrag zur Gyriniden-Fauna Javas und der benachbarten Sunda-Inseln nebst Beschreibung einiger Verwandten des Orectochilus spiniger Rég. aus Hinter-Indien und Ceylon. 10 pp.
 
EAF 18412
Ochs G., 1967: Neue Gyriniden aus dem Museum G. Frey in Tutzing (Gyrinidae, Col.). 7 pp. Entomologische Arbeiten aus dem Museum G. Frey 18: 412-418.
 
51684
Oehlke J., 1964: Übersicht und Bestimmungstabelle der palaearktischen Gattungen der ehemaligen Unterfamilie Pimplinae auct. (Hymenoptera, Ichneumonidae). 58 pp. [M27]
 
EBA 10019
Oezkan M., 1985: Hydrobaderia n. Gen., eine neue Hydryphatide-Gattung aus der Türkei (Acari, Actinedida, Hydrachnellae). 8 pp. [M17]
 
EBA 07029
Oezkan, 1982: Wassermilben (Acari, Actinedida) aus der Türkei. 32 pp. [M16]
 
NBE 46011
Offenberger M., Klarenberg A. J., 1997: Hymenopteran parasitoids of Drosophila breeding in decaying herbage (Diptera: Drosophilidae). 9 pp. [DIP 2448] Nachrichtenblatt der Bayerischen Entomologen 46(1/2): 11-19.
 
ZME 63027
Ofwegen L. P. van, 1989: On Wrightella coccinea (Ellis & Solander, 1786) and Wrightella stiasnyi spec. nov. (Anthozoa: Gorgonacea: Melithaeidae). 8 pp. Zoologische Mededelingen Leiden 63(3): 27-34.
 
ZME 63163
Ofwegen L. P. van, 1990: Notes on the Keroeididae (Anthozoa: Gorgonacea) collected in 1963 and 1964 by the international Indian ocean expedition of the r/v “Anton Bruun”, in the Indian ocean, with the description of a new species, Lignella hartogi. 6 pp. Zoologische Mededelingen Leiden 63(13): 163-168.
 
ZME 82631
Ofwegen L. P. van, 2008: The genus Sinularia (Octocorallia: Alcyonacea) at Palau, Micronesia. 105 pp. Zoologische Mededelingen 82: 631-735.
 
ZME 82131
Ofwegen L. P. van, 2008: The genus Sinularia (Octocorallia: Alcyonacea) from Bremer and West Woody islands (Gulf of Carpentaria, Australia). 35 pp. Zoologische Mededelingen 82: 131-165.
 
ZME 81241
Ofwegen L. P. van, Alderslade P., 2007: A new species of Alertigorgia (Coelenterata: Octocorallia: Anthothelidae) from the Indo Malayan region. 8 pp. Zoologische Mededelingen Leiden 81: 241-249.
 
ZME 66139
Ofwegen L. P. van, Benayahu Y., 1992: Notes on Alcyonacea (Octocorallia) from Tanzania. 16 pp. [EVE 546] Zoologische Mededelingen 66(6): 139-154.
 
ZME 88019
Ofwegen L. P. van, Hermanlimianto M. I. Y. T., 2014: Siboga plexaurids (Coelenterata: Octocorallia) re-examined. 40 pp. Zoologische Mededelingen 88(1-4): 19-58.
 
ZME 65143
Ofwegen L. P. van, Vennam J., 1991: Notes on Octocorallia from the Laccadives (SW India). 12 pp. [EVE 547] Zoologische Mededelingen 65(9): 143-154.
 
80535
Ofwegen L. P. van, Vennam J., 1994: Results of the Rumphius biohistorical expedition to Ambon (1990). Part 3. The Alcyoniidae (Octocorallia: Alcyonacea). 24 pp.
 
78733
Ogandžanjan A. M., 1959: Biologija Hyalomma asiaticum caucasicum B. Pom. v uslovijach Armjanskoj SSR. 46 pp.
 
80536
Ogilby J. D., 1911: Descriptions of new or insufficiently described fishes from Queensland waters. 24 pp.
 
STR 37
Ogloblin A. A., 1923: Two new Strepsipterar from materials of National Museum of Natural History in Prague. 3 pp. [AEP 01045] [M38]
 
HYM 2842
Ogloblin A. A., 1924: Description of new species and notes on some Anteoninae (Proctotrupidae) of Czechoslovakia. 15 pp. [M44]
 
ASC 22024
Ogloblin A. A., 1925: Descriptions of a new species of Pseudoisobrachium Kieff. (Hym. Bethylidae) from Brazil. 4 pp. [HYM 2845] Acta Societatis entomologicae Cechosloveniae 22: 24-27.
 
ASC 22077
Ogloblin A. A., 1925: Popisy tří nových druhů rodu Pseudoisobrachium Kieff. (Hym. Bethylidae) z Brazílie. 5 pp. [HYM 2846] Acta Societatis entomologicae Cechosloveniae 22: 77-81.
 
AEP 03171
Ogloblin A. A., 1925: Strepsiptera sbírek entomologického oddělení Národního musea v Praze. (II. pt.). 6 pp. Acta Entomologica Musei Nationalis Pragae 3: 171-176.
 
STR 38
Ogloblin A. A., 1925: Strepsiptera sbírek entomologického oddělení Národního musea v Praze. (II. pt.). 6 pp. [AEP 03171] [M38]
 
AEP 04145
Ogloblin A. A., 1926: A new species of Allotropa (Scelionidae, Hymenoptera). 6 pp. Acta Entomologica Musei Nationalis Pragae 4: 145-150.
 
AEP 04133
Ogloblin A. A., 1926: Nová Strepsiptera sbírek Národního musea v Praze. (Part. III.). 11 pp. Acta Entomologica Musei Nationalis Pragae 4: 133-143.
 
AEP 05115
Ogloblin A. A., 1927: A new species of Loxotropa Foerst. (Hymen., Diapriidae) from Carpathian Russia in Czechoslovakia. 4 pp. Acta Entomologica Musei Nationalis Pragae 5: 115-117.
 
AEP 05119
Ogloblin D. A., 1927: Une espece nouvelle de genre Erystus Jac. (Col., Halticinae). 2 pp. Acta entomologica Musei nationalis Pragae 5: 119-120.
 
ESC 09001
Ohba S., Hidaka K., Sasaki M., 2006: Notes on paternal care and sibling cannibalism in the giant water bug, Lethocerus deyrolli (Heteroptera: Belostomatidae). 5 pp. Entomol. Sci. 9(1): 1-5.
 
GLG 89
Ohguchi T., Tiba T., 1987: Neogene volcanism in the northern Honshu, Japan. Part 1. Historical change of volcanic fields. 11 pp. (in Japanese). Memoirs of the National Science Museum 20: 15-25 pp.
 
GLG 90
Ohguchi T., Tiba T., 1987: Neogene volcanism in the northern Honshu, Japan. Part 2. Mode of occurrences of volcanic rocks along the north coast of the Tsugaru Peninsula. 9 pp. (in Japanese). Memoirs of the National Science Museum 20: 27-35.
 
FEH 26S317
Ohira H., 1973: A list of the elaterid-beetles from South Asia preserved in the Hungarian Natural History Museum (Coleoptera). Part VII. 18 pp. [14186] Folia Entomologica Hungarica (S.N.) 26(suppl.): 317-334.
 
TRV 115
Ohlin A., 1898: A zoologist in Tierra del Fuego: some account of the Swedish expedition, 1895-96. 10 pp. (in English). Natural Science 9(55): 172-181.
 
95283
Ohly J., 1985: Die Wasserbüffelwirtschaft am mittleren Amazonas aus der Sicht der jüngsten Entwicklungen. 17 pp. Amazoniana 9(3): 441-457.
 
ZME 78249
Oijen M. J. P. van, 2004: Haplochromis ushindi spec. nov., the largest piscivorous cichlid in the Mwanza Gulf area of Lake Victoria (East Africa) before the Nile perch upsurge. 6 pp. Zoologische Mededelingen Leiden 78: 249-255.
 
ZME 804001
Oijen M. J. P. van, Ligny W. de, 2006: Marinus Boeseman, 1916-2006, a biography and a list of his publications. 8 pp. Zoologische Mededelingen Leiden 80(4): 1-8.
 
ZME 81251
Oijen M. J. P. van, Roselaar C. S., 2007: Notes on types and early specimens of Bombycivora japonica von Siebold, 1824, and of Bombycilla phoenicoptera Temminck, 1828. 8 pp. Zoologische Mededelingen Leiden 81: 251-258.
 
ZME 82167
Oijen M. J. P. van, Zeeuw M. P. de, 2008: Haplochromis vonlinnei spec. nov., a piscivorous haplochromine cichlid (Teleostei, Perciformes) from the Mwanza Gulf area of Lake Victoria. 9 pp. Zoologische Mededelingen 82: 167-175.
 
ZME 66561
Oijen, 1992: Haplochromis howesi spec. nov., a crab and fish eating cichlid from Lake Victoria. 19 pp. [81177] Zoologische Mededelingen 66(40): 561-579.
 
ESC 09161
Oishi M., Yokota T., Teramoto N., Sato H., 2006: Japanese oak silkmoth feeding preference for and performance on upper-crown and lower-crown leaves. 9 pp. Entomol. Sci. 9(1): 161-169.
 
95521
Oka A., 1922: A criticism on the present civilization. 26 pp. (in English).
 
DIP 2451
Okada T., 1974: Drosophilidae (Diptera) from Korea. 7 pp. Ann. Hist.-nat. Mus. Nat. Hung. 66: 269-275.
 
HEM 1128
Okáli I., 1959: Ein Beitrag zur Kenntnis der Zikaden der Slowakei (Hom., Auchenorrhyncha). 1 p. [M46]
 
ASC 55109
Okáli I., 1959: Ein Beitrag zur Kenntnis der Zikaden der Slowakei (Hom., Auchenorrhyncha). 1 p. [M46] [HEM 1128] Acta Societatis entomologicae Cechosloveniae 55: 109.
 
MUZ 36
Okáli I., 1983: Činnosť Slovenskej entomologickej spoločnosti pri SAV v rokoch 1977 až 1982. 12 pp.
 
DIP 2454
Okáli I., 1986: List of the type specimens in the collections of the Slovak national museum – institute of natural history, Bratislava: Insecta, Diptera. 2 pp.
 
95134
Okazawa T., 1975: Aquatic insect survey of the river Kaunnai, with special reference to the Rockey Chute Bed fauna. 16 pp. Kontyu, Tokyo 43(4): 497-512.
 
63004
Okely E. F., 1974: Description of the puparia of twenty-three British species of Sphaeroceridae (Diptera, Acalyptratae). 16 pp.