OAKLEY, TODD H. (USA) - see LUM, KIMBERLY E. , SYME, ANNA E. , SCHWAB, ANASTASIA K. & OAKLEY, TODD H. (USA)

OBERPRIELER, R.G. (Australia) , MARVALDI, A.E. (Argentina) & ANDERSON, R.S. (Canada)
Weevils, Weevils, Weevils Everywhere
Zootaxa 1668: 491-520 (21 Dec. 2007)
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OCAMPO, F.C. (USA)
Two new species of Hybochaetodus Arrow (Coleoptera: Scarabaeoidea: Hybosoridae: Anaidinae) from Peru
Zootaxa 1304: 49-59 (28 Aug. 2006)  
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OCAMPO, F.C. (USA) & SMITH, A.B.T. (Canada)
Puelchesia gracilis, a new genus and species of Pachydemini endemic to the Monte biogeographic province in Argentina (Coleoptera: Scarabaeidae: Melolonthinae)
Zootaxa 1349: 53-62 (2 Nov. 2006)  
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OCEGUERA-FIGUEROA, A. (Mexico)
A new species of freshwater leech of the genus Haementeria (Annelida: Glossiphoniidae) from Jalisco State, Mexico
Zootaxa 1110: 39-45 (17 Jan. 2006) 
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OCHOA, J.A. (Peru) - see CHAPARRO, J.C. (Peru), DE LA RIVA, I. (Spain), PADIAL, J.M. (Spain), OCHOA, J.A. (Peru) & LEHR, E. (Germany)

OCHOA, R. (USA) - see LOFEGO, A.C. (Brazil), DE MORAES, G.J. (Brazil) & OCHOA, R. (USA)

ODIERNA, G. (Italy) - see ARRIBAS, O. (Spain), CARRANZA, S. (Spain) & ODIERNA, G. (Italy) 

OKAJIMA, S. (Japan) - see MASUMOTO, M. & OKAJIMA, S. (Japan)

OKAJIMA, S. (Japan) - see YAMADA, K. (Japan), HIROWATARI, T. (Japan), SUSILA, W. (Indonesia) & OKAJIMA, S. (Japan)

OKAJIMA, S. (Japan) - see ISHIKAWA, T. (Japan), TORIUMI, W. (Japan), SUSILA, W. (Indonesia) & OKAJIMAE, S. (Japan)

OKAJIMA, S. (Japan) - see ISHIKAWA, T. (Japan), SUMIARTHA, K. (Indonesia) & OKAJIMA, S. (Japan)

OKUNO, J. (Japan) - see OSAWA, M. , FUJITA, Y. & OKUNO, J. (Japan)

OKYAR, ZUHAL (Turkey) & MIRONOV, VLADIMIR (Russia)
Checklist of the Geometridae of European Turkey, with new records (Lepidoptera)
Zootaxa 1789: 1-56 (11 Jun. 2008) 
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OCAMPO,  F.C. (USA)
A new species of the Neotropical genus Daimothoracodes Petrovitz (Coleoptera: Scarabaeoidea: Hybosoridae)
Zootaxa 1048: 45-51 (13 Sept. 2005) 
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OCEGUERA-FIGUEROA, A.  & LEON-REGAGNON, V.  (Mexico)
A new freshwater leech species of Helobdella (Annelida: Glossiphoniidae) from central Mexico
Zootaxa 976: 1-8 (13 May 2005) 
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OCHOA, R. (USA) - see LOFEGO, A.C. (Brazil), OCHOA, R. (USA) & MORAES, G.J. (Brazil)

OCHOA, R. (USA) - see MESA, N.C. (Brazil), MORAES, G.J. DE (Brazil) & OCHOA, R. (USA)

OCONNOR, B.M. (USA) - see REEVES, W.K., DURDEN, L.A., RITZI, C.M., BECKHAM, K.R., SUPER, P.E., OCONNOR, B.M. (USA)

ODDONE, M.C. , MARÇAL, A.S. & VOOREN, C.M. (Brazil)
Egg capsules of Atlantoraja cyclophora (Regan, 1903) and A. platana (Günther, 1880) (Pisces, Elasmobranchii, Rajidae)
Zootaxa 426: 1-4 (6 February 2004) 
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ODEGAARD, F. (Norway) - see KIRKENDALL, L.R. & ODEGAARD, F. (Norway)

ODILE, BAIN (France) - see BRIGITTE, PLANADE., ODILE, BAIN., JEAN-PAUL, LENA & PIERRE, JOLY (France)

O'DONNELL, J.E. (USA)
A new species of Xestocoris Van Duzee, with comments on the genus (Hemiptera: Heteroptera: Rhyparochromidae: Rhyparochrominae)
Zootaxa 1606: 51-57 (3 Oct. 2007) 
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OGBOGU, S. S. (Nigeria)
First report of Aethaloptera dispar Brauer 1875 (Trichoptera: Hydropsychidae) from Ile-Ife, southwestern Nigeria, West Africa
Zootaxa 1088: 25-32 (29 Nov. 2005)
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OGOL, C.K.P.O.  (Kenya) - see FIABOE, K.K.M. (Kenya), GONDIM Jr. M.G.C. (Brazil), DE MORAES, G.J. (Brazil), OGOL, C.K.P.O.  (Kenya) & KNAPP, M. (Uganda)

O’GRADY, P.  (USA), BONACUM, J. (USA), DESALLE, R. (USA) & DO VAL, F.  (Brazil)
The placement of Engiscaptomyza, Grimshawomyia, and Titanochaeta, three clades of endemic Hawaiian Drosophilidae (Diptera)
Zootaxa 159: 1-16 (12 March 2003) 
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O'GRADY, P. M. (USA) -see OLIVEIRA, D. C. S. G. , O'GRADY, P. M. , ETGES, W. J. , HEED, W. B. & DeSALLE, R. (USA)

O'GRADY, P. M. (USA) -see OLIVEIRA, D. C. S. G., LEONIDAS, M., ETGES, W. J., O'GRADY, P. M. & DeSALLE, R. (USA)

O'GRADY, P. M. (USA) -see MAGNACCA, K.N., FOOTE, D. & O'GRADY, P.M. (USA)

O’GUINN, M.L.   (USA) - see LI, C. , LEE, J. S. , GROEBNER, J.L. , KIM, H.-C. , KLEIN, T.A. , O’GUINN, M.L.  & WILKERSON, R. C. (USA) 

OGUNLANA, M.V. (USA), HOOGE, M.D. (USA), TEKLE, Y.I. (Sweden), BENAYAHU, Y. (Israel), BARNEAH, O. (Israel) & TYLER, S. (USA)
Waminoa brickneri n. sp. (Acoela: Acoelomorpha) associated with corals in the Red Sea
Zootaxa 1008: 1-11 (14 Jun. 2005) 
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O’HARA, J.E. (Canada) 
A review of the tachinid parasitoids (Diptera: Tachinidae) of Nearctic Choristoneura species (Lepidoptera: Tortricidae), with keys to adults and puparia
Zootaxa 938: 1-46 (12 Apr. 2005) 
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O'hara, James E.  (Canada) - see Evenhuis, Neal L. (USA) & O'hara, James E.  (Canada)

ÔHARA, K. (Japan) - see CHOI, D.-S. (R. Korea), ÔHARA, K. (Japan) & HAN, H.-Y. (R. Korea)

OHASHI, K. (Japan)    - see EHARA, S. & OHASHI, K. (Japan)  

OHL, M. (Germany) - see LOHRMANN, V. & OHL, M. (Germany)

OHLER, A. (France) - see BORDOLOI, S. (India), BORTAMULI, T. (India) & OHLER, A. (France)

OHLER, A. (France) - see Bour, R. & Ohler, A. (France)

OJANGUREN-AFFILASTRO, ANDRES ALEJANDRO (Argentina)
A new endemic scorpion species from the Somuncura Plateau, in northern Patagonia (Scorpiones, Bothriuridae)
Zootaxa 1466: 47-54 (7 May 2007) 
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OKAJIMA,  S. (Japan) - see MASUMOTO, M. & OKAJIMA,  S. (Japan)

OKAJIMA, S. (Japan) - see MASUMOTO, M. & OKAJIMA, S. (Japan) 

OKAJIMA, S. (Japan) - see MASUMOTO, M. & OKAJIMA, S. (Japan) 

OKTENER, A. (Turkey)
A checklist of parasitic helminths reported from sixty-five species of marine fish from Turkey including two new records of monogeneans
Zootaxa 1063: 33-52 (14 Oct. 2005) 
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OKUNO, J. (Japan) - see BRUCE, A.J. (Australia), OKUNO, J. (Japan) & LI,  X.Z. (P.R. China)

O'HARA, J.E. (Canada)
A new species of Myiopharus Brauer and Bergenstamm (Diptera: Tachinidae) parasitic on adults of the sunflower beetle, Zygogramma exclamationis (Fabricius)
Zootaxa 1521: 31-41 (5 Jul. 2007) 
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OHL, MICHAEL & KRAUSE,  STEFANIE (Germany)
A remarkable new species of the digger wasp genus Zanysson Rohwer 1921 from Colombia (Hymenoptera: Apoidea, Crabronidae)
Zootaxa 1442: 43-54 (5 Apr. 2007) 
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OHTSUKA, SUSUMU (Japan) - see MOON, SEONG YONG (Korea), OHTSUKA, SUSUMU (Japan), UEDA, HIROSHI (Japan) & SOH, HO YOUNG (Korea)

OHYAMA, YOSHIKUNI  (Japan) - see KITO, KENJI  & OHYAMA, YOSHIKUNI  (Japan)

OJANGUREN-AFFILASTRO, A.A. (Argentina), AGUSTO, P. (Chile), PIZARRO-ARAYA, J. (Chile) & MATTONI, C.I. (Argentina)
Two new scorpion species of genus Brachistosternus (Scorpiones: Bothriuridae) from northern Chile
Zootaxa 1623: 55-68 (26 Oct. 2007) 
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OLÁH, J. (Hungary)  - see JOHANSON, K.A. (Sweden) & OLÁH, J. (Hungary) 

OLÁH, J. (Hungary), JOHANSON, K.A. (Sweden) & BARNARD, P.C. (UK)
Revision of the South Pacific endemic genera Orthopsyche McFarlane 1976, Abacaria Mosely 1941 and Caledopsyche Kimmins 1953 with the description of 29 new species (Trichoptera: Hydropsychidae)
Zootaxa 1356: 1-78 (13 Nov. 2006) 
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OLAH, J. (Hungary), JOHANSON, K.A. (Sweden) & BARNARD, P.C. (UK)
Revision of the Oriental and Afrotropical species of Cheumatopsyche Wallengren (Hydropsychidae, Trichoptera)
Zootaxa 1738: 1-171 (31 Mar. 2008) 
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OLAH, J. (Hungary) & JOHANSON, K.A. (Sweden)
Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae)
Zootaxa 1802: 1-248 (16 Jun. 2008) 
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OLAH, JANOS (Hungary) - see JOHANSON, KJELL ARNE (Sweden) & OLAH, JANOS (Hungary)

OLAH, JANOS (Hungary) - see JOHANSON, KJELL ARNE (Sweden) & OLAH, JANOS (Hungary)

OLDFIELD, R.G.  - see CHAKRABARTY, P.,  OLDFIELD, R.G. & NG, H.H. (USA)

OLESEN, J. (Denmark) & TIMMS, B. (Australia)
Caenestheriella mariae sp. nov. (Crustacea: Branchiopoda: Spinicaudata: Cyzicidae): a new clam shrimp from Western Australia
Zootaxa 824: 1-8 (20 Jan. 2005) 
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OLGUN, K., AVCI, A., ILGAZ, C., UZUM,  N. & YILMAZ, C.  (Turkey)
A new species of Rhynchocalamus (Reptilia: Serpentes: Colubridae) from Turkey
Zootaxa 1399: 57-68 (29 Jan. 2007)  
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OLIFIERS, M.H. , DORVILLÉ, L.F.M. & NESSIMIAN, J.L. & HAMADA, N. (Brazil)
A key to Brazilian genera of Plecoptera (Insecta) based on nymphs
Zootaxa 651: 1-15 (22 September 2004) 
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OLIVEIRA, A.R.  (Brazil) - see DE MORAES, G.J.  (Brazil), ZANNOU, I.D.  (Brazil), UECKERMANN, E.A.  (South Africa), OLIVEIRA, A.R.  (Brazil), HANNA, R.  (Benin) & YANINEK, J.S.  (USA)

OLIVEIRA, A. R.  (Brazil)  - see MORAES , G. J. DE (Brazil), OLIVEIRA, A. R.  (Brazil) & ZANNOU, I. D. (Benin)

OLIVEIRA, A. R.  (Brazil)  - see MORAES,  G.J. DE (Brazil), ZANNOU, I.D. (Brazil), OLIVEIRA, A.R. (Brazil), YANINEK, J.S. (USA) & HANNA, R. (Benin)

OLIVEIRA, A.R. (Brazil)  - see MORAES , G.J. DE (Brazil), UECKERMANN, E.A. (S. Africa), OLIVEIRA, A.R. (Brazil) & YANINEK, J.S. (USA)

OLIVEIRA, A. R. (Brazil), NORTON, R. A. (USA) & MORAES, G. J. DE (Brazil)
Edaphic and plant inhabiting oribatid mites (Acari: Oribatida) from Cerrado and Mata Atlantica ecosystems in the State of São Paulo, southeast Brazil
Zootaxa 1049: 49-68 (13 Sept. 2005) 
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OLIVEIRA, A.R. (Brazil)  - see ZANNOU, I. D. (Brazil), DE MORAES, G.J.  (Brazil), UECKERMANN, E.A. (South Africa), OLIVEIRA, A.R. (Brazil), YANINEK, J.S. (USA) & HANNA, R. (West Africa)

OLIVEIRA, A.R. (Brazil)  - see DE MORAES, G.J. (Brazil), ZANNOU, I.D. (Brazil), UECKERMANN, E.A. (South Africa), OLIVEIRA, A.R. (Brazil), YANINEK, J.S. (USA) & HANNA, R. (West Africa)

OLIVEIRA, A.R. (Brazil)  - see UECKERMANN, E.A. (South Africa), ZANNOU, I.D. (Brazil), DE MORAES, G.J. (Brazil), OLIVEIRA, A.R. (Brazil), HANNA, R. (West Africa) & YANINEK, J.S. (USA)

OLIVEIRA, A.R. (Brazil)  - see MORAES, GILBERTO J. DE (Brazil), IGNACE D. ZANNOU (Brazil), EDDIE A. UECKERMANN (S. Africa), ANIBAL R. OLIVEIRA (Brazil), RACHID HANNA (Benin) & JOHN S. YANINEK (USA)

OLIVEIRA, CAROLINE S. N., FONSECA-GESSNER, ALAIDE A. & SILVA, MARIO ANTONIO NAVARRO (Brasil)
The immature stages of Ablabesmyia (Sartaia) metica Roback, 1983 (Diptera: Chironomidae) with keys to subgenera
Zootaxa 1808: 61-68 (23 Jun. 2008) 
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OLIVEIRA, D. C. S. G. , O'GRADY, P. M. , ETGES, W. J. , HEED, W. B. & DeSALLE, R. (USA)
Molecular systematics and geographical distribution of the Drosophila longicornis species complex (Diptera: Drosophilidae)
Zootaxa 1069: 1-32 (25 Oct. 2005) 
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OLIVEIRA, D.C.S.G., LEONIDAS, M., ETGES, W.J., O'GRADY, P.M. & DeSALLE, R. (USA)
Species delimitation in the Drosophila aldrichi subcluster (Diptera: Drosophilidae) using DNA sequences 
Zootaxa 1725: 37-47 (12 Mar. 2008) 
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OLIVEIRA, GUSTAVO RIBEIRO DE & KELLNER, ALEXANDER WILHELM ARMIN (Brazil)
A new side-necked turtle (Pleurodira, Pelomedusoides) from the Santana Formation (Early Cretaceous), Araripe Basin, Northeastern Brazil
Zootaxa 1425: 53-61 (15 Mar. 2007) 
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OLIVEIRA, J.A. DE  - see VILELA, J.F. , OLIVEIRA, J.A. DE & BONVICINO, C.R. (Brazil) 

OLIVEIRA, O.M.P. (Brazil) - see MARQUES, A.C. & OLIVEIRA, O.M.P. (Brazil)

OLIVEIRA, O.M.P. & MIGOTTO, A.E. (Brazil)
Pelagic ctenophores from the São Sebastião Channel, southeastern Brazil
Zootaxa 1183: 1-26 (24 Apr. 2006) 
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OLIVEIRA, L.A. (Brazil) - see MAIA, V. C., SILVEIRA, F. A. O., OLIVEIRA, L. A. & XAVIER, M. F. (Brazil)

OLIVEIRA, L.E. (Brazil) - see GIARETTA, A.A., TOFFOLI, D. & OLIVEIRA, L.E. (Brazil)

OLIVEIRA, M.E. (Brazil) - see ZAHER, H., OLIVEIRA, M.E. & FRANCO, F.L. (Brazil)

OLIVEIRA, M.V. & HAJDU, E. (Brazil)
Taxonomy of Rhabderemia Topsent, 1890 collected from the south-eastern Brazilian continental shelf and slope by Programme REVIZEE (Rhabderemiidae, Poecilosclerida, Demospongiae), with the description of two new species
Zootaxa 844: 1-12 (1 Feb. 2005) 
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OLIVEIRA, SARAH SIQUEIRA (Brazil) - see AMORIM, DALTON DE SOUZA., OLIVEIRA, SARAH SIQUEIRA & BALBI, MARIA ISABEL P.A. (Brazil)

OLIVER, P. (Australia) - see RICHARDS, S.J. (Australia), OLIVER, P. (Australia), DAHL, C. (Papua New Guinea) & TJATURADI, B. (Indonesia) 

OLIVER, P. (Australia), RICHARDS, S.J. (Australia), TJATURADI, B. (Indonesia) & ISKANDAR, D. (Indonesia)
A new large green species of Litoria (Anura: Hylidae) from western New Guinea
Zootaxa 1519: 17-26 (2 Jul. 2007) 
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OLIVER, P.M. (Australia) - see RICHARDS, S.J. & OLIVER, P.M. (Australia)

OLIVER, P.G. (UK)  & SELLANES, J. (Chile)
New species of Thyasiridae from a methane seepage area off Concepcion, Chile
Zootaxa 1092: 1-20 (8 Dec. 2005) 
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OLIVER, P.G. (UK) - see RODRIGUES, C.F. (Portugal), OLIVER, P.G. (UK) & CUNHA, M.R. (Portugal)

OLMI, M. (Italy )
Embolemus kheeli: a new species of Embolemidae (Hymenoptera: Chrysidoidea) from the Dominican Republic
Zootaxa 500: 1-6 (30 April 2004) 
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OLMI, M. (Italy) & VIRLA, E. (Argentina)
Description of two new species of Dryinidae (Hymenoptera: Chrysidoidea) from Argentina
Zootaxa 709: 1-7 (1 November 2004) 4 plates; 6 references                          Accepted: 19 Oct. 2004
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OLMI, M. (Italy) - see GUGLIELMINO, A. & OLMI, M. (Italy)

OLMI, M. (Italy) - see XU, Z.F. , OLMI, M. & HE, J.H. (P.R. China)

OLSON, D. (Fiji) - see YANEGA, D. (USA), OLSON, D. (Fiji), SHUTE, S. (UK) & KOMIYA, Z. (Japan)

OLSON, S. L. (USA) & MATSUOKA, H. (Japan)
New specimens of the early Eocene frigatebird Limnofregata (Pelecaniformes: Fregatidae), with the description of a new species
Zootaxa 1046: 1-15 (8 Sept. 2005) 
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OLSZANOWSKI, Z.  (Poland) & NORTON, R.A. (USA)
Paracamisia osornensis gen. n., sp. n. (Acari: Oribatida) from Valdivian forest soil in Chile
Zootaxa 25: 1-15 (11 March 2002) 
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OLSZANOWSKI, Z. (Poland) - see SZYWILEWSKA-SZCZYKUTOWICZ, A. & OLSZANOWSKI, Z. (Poland)

OMAR, Y.M. (P.R. China), HAN, K.D. (R. Korea) & ZHANG, R.Z. (P.R. China) 
Description of a new species, Tarchius yunnanensis (Coleoptera: Curculionidae: Cossoninae), from China
Zootaxa 1270: 35-43 (24 Jul. 2006) 
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OMAR, Y.M. (P.R.China), ZHANG, R. (P.R.China) & Davis, S.R. (USA)
Descriptions of two new species of Pseudocossonus Wollaston (Coleoptera: Curculionidae: Cossoninae) from mainland China with a key to the world species
Zootaxa 1375: 59-68 (7 Dec. 2006) 
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ONN, CHAN KIN (Malaysia) - see GRISMER, L. LEE (USA) & ONN, CHAN KIN (Malaysia)

ONO, H. (Japan)
Two new species of spiders of the family Zodariidae (Araneae) from eastern Nepal
Zootaxa 1325: 319-326 (28 Sept. 2006) 
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ONO, H. (Japan) - see CHAMI-KRANON, T. (Thailand) & ONO, H. (Japan)

ONO, HIROTSUGU (Japan)  - see TU, LIHONG ({.R. China), ONO, HIROTSUGU (Japan) & LI,  SHUQIANG (P.R. China)

OMELKO, MIKHAIL M.  (Russia) - see MARUSIK, YURI M.  & OMELKO, MIKHAIL M.  (Russia)

OPLER, P.A. (USA) - see FERGUSON, D.C. & OPLER, P.A. (USA)

OPLER, PAUL A. (USA) - see SCHMIDT,  B. CHRISTIAN (Canada) & OPLER, PAUL A. (USA)

OPLER, PAUL A. (USA)
Designation of Lectotype and synonymy for Euchloe lotta Beutenmuller (Lepidoptera: Pieridae)
Zootaxa 1767: 67-68 (12 May 2008) 
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OPELL, B.D. , BERGER, A.M., BOUS, S.M. & MANNING, M.L. (USA)
Genetic relationships of Amaurobioides (Anyphaenidae) spiders from the southeastern coast of New Zealand
Zootaxa 1425: 1-10 (15 Mar. 2007) 
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OPITZ, W. (USA)
Classification, natural history, and evolution of Epiphloeinae (Coleoptera: Cleridae). Part VII. The genera Hapsidopteris Opitz, Iontoclerus Opitz, Katamyurus Opitz, Megatrachys Opitz, Opitzia Nemesio, Pennasolis Opitz, new genus, Pericales Opitz, new genus, Pteroferus Opitz, new genus, and Turbophloeus Opitz, new genus
Zootaxa 1754: 1-40 (21 Apr. 2008) 
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OPRESKO,  D.M. (USA)
A new species of antipatharian coral (Cnidaria: Anthozoa: Antipatharia) from the southern California Bight
Zootaxa 852: 1-10 (8 Feb. 2005) 
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OPRESKO, D.M. (USA) - see PÉREZ, C.D. (Brazil) , COSTA, D.L. (Brazil) & OPRESKO, D.M. (USA) 

OPRESKO, D.M. (USA) - see DALY, M., BRUGLER, M. R., CARTWRIGHT, P., COLLINS, A. G., DAWSON, M. N., FRANCE, S. C., MCFADDEN, C. S., OPRESKO, D. M., RODRIGUEZ, E., ROMANO, S., STAKE, J. (USA)

OPRESKO, D.M. (USA) & LOIOLA, L.deL. (Brazil)
Two New Species of Chrysopathes (Cnidaria: Anthozoa: Antipatharia) from the Western Atlantic
Zootaxa 1707: 49-59 (20 Feb. 2008) 
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ORGAN, E.L. (USA)  - see TAYLOR, C.A. , SOUCEK, D.J. & ORGAN, E.L. (USA) 

 ORLOV, A.M. (Russia) - see BYRKJEDAL, I. (Norway) & ORLOV, A.M. (Russia)

ORLOV, N.L. (Russia) - see DAVID, P. (France), BAIN, R.H. (USA), TRUONG, N.Q. (Vietnam), ORLOV, N.L. (Russia), VOGEL, G. (Germany), THANH, V.N. (Vietnam) & ZIEGLER, T. (Germany)

OROMI, P. (Spain) - see BORGES, P.A.V. (Portugal), OROMI, P. (Spain), SERRANO, A.R.M. (Portugal), AMORIM, I.R. (USA) & PEREIRA, F. (Portugal)

ORONO, E.S. (Argentina)
Taxonomic review of the Spixia pyriformis species complex (Gastropoda: Pulmonata: Odontostominae)
Zootaxa 1498: 1-25 (4 Jun. 2007) 
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OROZCO, J. & PARDO-LOCARNO, L.C.  (Colombia)
Description of immature stages of three species of American Cetoniinae (Coleoptera: Scarabaeidae: Cetoniinae)
Zootaxa 769: 1-14 (14 December 2004)
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ORR, J.W. & BUSBY, M.S. (USA)
Revision of the snailfish genus Allocareproctus Pitruk & Fedorov (Teleostei: Liparidae), with descriptions of four new species from the Aleutian Islands
Zootaxa 1173: 1-37 (13 Apr. 2006) 
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ORRICO, V.G.D., MONGIN, M.M. & ORRICO, V.G.D., MONGIN, M.M. & CARVALHO-E-SLIVA, A.M.P.T. DE (Brazil)
The tadpole of Hypsiboas latistriatus (Caramaschi & Cruz, 2004), a species of the Hypsiboas polytaenius (Cope, 1870) clade (Amphibia, Anura, Hylidae)
Zootaxa 1531: 25-37 (23 Jul. 2007) 
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ORTIZ, M. (Cuba)  - see CHÁZARO-OLVERA, S.  (Mexico), WINFIELD, I. (Mexico), ORTIZ, M. (Cuba)  & ÁLVAREZ, F. (Mexico)

ORTIZ, M. (USA) - see MCLAUGHLIN, P.A., LEMAITRE, R. & ORTIZ, M. (USA)

ORTIZ-SANCHEZ, F.J.  (Spain)  - see PATINY, S. (Belgium), ORTIZ-SANCHEZ, F.J.  (Spain) & MICHEZ, D. (Belgium)

ÖKTENER, A. (Turkey)
A checklist of metazoan parasites recorded in freshwater fish from Turkey
Zootaxa 394: 1-28 (23 December 2003) 
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ORTH, A. (France) - see CUCCHI, T. (France), ORTH, A. (France), AUFFRAY, J.-C. (France), RENAUD, S. (France), FABRE, L. (France), CATALAN, J. (France), HADJISTERKOTIS, E. (Cyprus), BONHOMME, F. (France) & VIGNE, J.-D. (France) 

ORTUNO, V.M., - see SENDRA, A., ORTUNO, V.M., MORENO, A., MONTAGUD, S. & TERUEL, S. (Spain)

OSAWA, MASAYUKI  (Japan)
A new species of Chirostylus Ortmann, 1892 (Crustacea: Decapoda: Anomura: Chirostylidae) from the Ryukyu Islands, southwestern Japan, with a supplemental description of Chirostylus ortmanni Miyake & Baba, 1968
Zootaxa 1450: 31-43 (19 Apr. 2007) 
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OSAWA, MASAYUKI  (Japan)
A new species of Polyonyx Stimpson, 1858 (Crustacea: Decapoda: Anomura: Porcellanidae) from the Philippines and Loyalty Islands
Zootaxa 1450: 21-29 (19 Apr. 2007)
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OSAWA, M. (Japan) - see KOMAI,  T. & OSAWA, M. (Japan)

OSAWA,  M. & FUJITA, Y. (Japan)
A new species of Lissoporcellana (Crustacea: Decapoda: Anomura: Porcellanidae) from Okinawa, southwestern Japan
Zootaxa 1038: 53-63 (19 Aug. 2005)
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OSAWA, M. , FUJITA, Y. & OKUNO, J. (Japan)
Two new species of Pagurixus (Crustacea: Decapoda: Anomura: Paguridae) from submarine caves of the Ryukyu Islands, southwestern Japan
Zootaxa 1148: 27-45 (10 Mar. 2006) 
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OSAWA, M. (Japan) & NG, N. (Singapore) 
A new species of Ptychognathus Stimpson, 1858 (Crustacea: Decapoda: Brachyura: Varunidae) from the Ryukyu Islands, southwestern Japan
Zootaxa 1260: 56-66 (14 Jul. 2006)  
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OSAWA, M. (Japan)
Porcellanidae (Crustacea: Decapoda: Anomura) from New Caledonia and the Loyalty Islands
Zootaxa 1548: 1-49 (13 Aug. 2007) 
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OSAWA, M. & KOMAI, T. (Japan)
A new hermit crab species of the Pagurixus anceps group (Crustacea: Decapoda: Anomura: Paguridae) from southern Japan, and supplemental notes on P. patiae Komai, 2006
Zootaxa 1627: 41-51 (31 Oct. 2007)  
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OSAWA, M. & FUJITA, Y. (Japan)
Two new species of Turleania McLaughlin, 1997 (Crustacea: Decapoda: Anomura: Paguridae) from the Ryukyu Islands, southwestern Japan, and a redescription of T. balli (McLaughlin & Haig, 1996)
Zootaxa 1753: 49-68 (21 Apr. 2008) 
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OSENTOSKI, M. (USA) - see FREEMAN, B., NICO, L.G., OSENTOSKI, M., JELKS, H.L. & COLLINS, T.M. (USA)

O'SHEA, MARK (Australia) - see WILLIAMS, DAVID J. (Australia), MARK O'SHEA (Australia), ROLAND L. DAGUERRE (UK), CATHARINE E. POOK (UK), WOLFGANG WUSTER (UK), CHRISTOPHER J. HAYDEN (USA), JOHN D. MCVAY (USA), OWEN PAIVA (Papua New Guinea), TEATULOHI MATAINAHO (Papua New Guinea), KENNETH D. WINKEL (Australia) & CHRISTOPHER C. AUSTIN (USA)
Origin of the eastern brownsnake, Pseudonaja textilis (Dumeril, Bibron and Dumeril) (Serpentes: Elapidae: Hydrophiinae) in New Guinea: evidence of multiple dispersals from Australia, and comments on the status of Pseudonaja textilis pughi Hoser 2003
Zootaxa 1703: 47-61 (13 Feb. 2008) 

OSPINA-TORRES, R. (Colombia) - see PARRA-H, A.  (Colombia), OSPINA-TORRES, R. (Colombia), RAMÍREZ, S. (USA)

OSPINA-TORRES, R. (Colombia), PARRA-H, A. (Colombia) & GONZALEZ, V.H. (USA)
The male gonostylus of the orchid bee genus Euglossa (Apidae: Euglossini)
Zootaxa 1320: 49-55 (25 Sept. 2006)
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OSTENDE, L.W.V.D.H. (The Netherlands) - see MIRACLE, M.E.G., OSTENDE, L.W.V.D.H. & ARNTZEN, J.W. (The Netherlands)

OTHMAN, B.H.R. & AZMAN, B.A.R. (Malaysia)
A new species of Talitridae (Amphipoda: Gammaridea) from Tioman Island, Malaysia
Zootaxa 1454: 59-68 (23 Apr. 2007) 
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OTHMAN, B.H.R. (Malaysia) & MORINO, H. (Japan)
Listriella longipalma sp. nov., a new amphipod species (Crustacea: Liljeborgiidae) from the Straits of Melaka, Malaysia
Zootaxa 1305: 21-32 (31 Aug. 2006)  
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OTTE, D. (USA) - see PEREZ-GELABERT, D. E. & OTTE, D. (USA)

OU, XIAO-HONG (P.R. China) - see MAO, BEN-YONG, REN, GUO-DONG & OU, XIAO-HONG (P.R. China)

OU, XIAO-HONG (P.R. China) - see MAO, BEN-YONG., REN, GUO-DONG & OU, XIAO-HONG (P.R. China)

OU, X.-H. (P.R. China) - see MAO, B.-Y., REN, G.-D. & OU, X.-H. (P.R. China)

OWEN, A.K. & PINTO, J.D. (USA)
Pachamama, an uncommon and distinctive new genus of Trichogrammatidae (Hymenoptera: Chalcidoidea) from tropical America
Zootaxa 664: 1-8 (1 October 2004) 
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OWEN, ROBERT D. (Paraguay) - see D'ELIA, GUILLERMO (Chile), MORA, ISMAEL (Paraguay), MYERS, PHIL (USA) & OWEN, ROBERT D. (Paraguay)

OYAKAWA, O.T. , AKAMA, A. & ZANATA, A.M. (Brazil)
Review of the genus Hypostomus Lacépède, 1803 from rio Ribeira de Iguape basin, with description of a new species (Pisces, Siluriformes, Loricariidae)
Zootaxa 921: 1-27 (29 Mar. 2005) 
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OYAKAWA, O.T. (Brazil) - see JEREP, F.C., SHIBATTA, O.A.  PEREIRA, E.H.L. & OYAKAWA, O.T. (Brazil)

OYEWO, EMMANUEL ADEOYE  (Norway) - see SÆTHER, OLE A.  & OYEWO, EMMANUEL ADEOYE  (Norway)

OZBAY, C.  (Turkey) - see SATAR, A.,  SULUDERE, Z.,  CANBULAT, S. & OZBAY, C.  (Turkey)

OZDIKMEN, HUSEYIN (Turkey)
Nomenclatural changes for some Orthoptera (Ensifera and Caelifera)
Zootaxa 1763: 67-68 (5 May 2008) 
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OZKAN,  M. (Turkey) - see BAL , D.A. & OZKAN,  M. (Turkey)

OZKAN,  M. (Turkey) - see ERMAN, O., OZKAN, M., AYYILDIZ, N. & DOGAN, S. (Turkey)

OZKURT, S.O. (Turkey), SOZEN, M. (Turkey), YIGIT, N. (Turkey), KANDEMIR, I. (Turkey), COLAK, R. (Turkey), GHARKHELOO, M.M. (Iran) & COLAK, E. (Turkey)
Taxonomic status of the genus Spermophilus (Mammalia: Rodentia) in Turkey and Iran with description of a new species
Zootaxa 1529: 1-15 (19 Jul. 2007) 
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OZULUG, M. (Turkey) - see MERIC, N., ERYILMAZ, L. & OZULUG, M. (Turkey)