Perkins R. C. L., 1916: Some new Hawaiian Coleoptera. 7 pp. 

 Perkins R. C. L., 1921: Notes on Hawaiian Plagithmysides and Anobiides (Col.) with descriptions of new species. 14 pp. [M07] 

 Perkins R. C. L., 1928: Notes on Proterhinus (Coleopteraa). 8 pp. [M26] 

 Perkins R. C. L., 1930: A revision of the British species of Dolerus Jurine (Hymenoptera Phytophaga). 14 pp. 

 Perkins R. C. L., 1936: Twenty-five years of insect-collecting in Devon. 8 pp. 

 Perkins R. C. L., 1937: A new Hawaiian carabid and notes on some Nitidulidae. 3 pp. [M25] 

 Perkins R. C. L., Sharp D., 1902: On the generic characters of Hawaiian Crabronidae; four new genera characterized. 4 pp. 

 Perru O., Grenier S., Plantevin G., 1996: Endopolyploidy level and regulation of the larval development of the tachinid parasitoid, Pseudoperichaeta nigrolineata, in the European corn borer, Ostrinia nubilatis. 7 pp. [EPR 27031] [M40] 

 Perru O., Grenier S., Plantevin G., 1996: Endopolyploidy level and regulation of the larval development of the tachinid parasitoid, Pseudoperichaeta nigrolineata, in the European corn borer, Ostrinia nubilatis. 7 pp. [M40] [DIP 2663] Entomological Problems 27(1): 31-37.

 Pershina A. I., Tsyganko V. S., Borintseva H. A., 1976: Biogeograficheskoe rayonirovanie evropejskogo severa SSSR. Devonskij period. 10 maps, 100 pp. 

 Persohn M., Malten A., Wolf-Schwenninger K., 2006: Seltenheiten-Ausschuss der GAC – 1. Bericht. 6 pp. (in German). Angewandte Carabidologie 7: 55-60.

 Péru L., Plateaux L., Buschinger A., Douwes P., Perramon A., Quentin J. C., 1990: New record of Leptothorax ants with cysticercoids of the cestode, Choanotaenia unicoronata, and the rearing of the tapeworm in quails. 3 pp. (in English). [HYM7483] Spixiana 13(2): 223-225.

 Perugia A., 1996: Pesci dell’ Adriatico. 17 pp. 

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

 Pesarini F., 1998: Tenthredella nympha, new species from Italy related to cunyi (Konow, 1886) (Hymenoptera: Tenhredinidae). 7 pp. Annali del Museo Civico di Storia Naturale di Ferrara 1: 69-75.

 Pesarini F., 1999: Taxonomical remarks on the European species of Pleroneura Konow, 1897 (Hymenoptera, Symphyta, Xyelidae). 6 pp. [M44] Annali del Museo Civico di Storia Naturale di Ferrara 2: 69-74.

 Pesarini F., Turrisi G. F., 2001: Contributo alla conoscenza dei sinfiti di Sicilia (Hymenoptera Symphyta). 39 pp. Memorie della Societá Entomologica Italiana 80: 183-221.

 Pesenko Yu. A., 1984: Pčely triby Nomioidini (Hymenoptera, Halictidae) fauny Mongolii: dopolnenija i utočnenija. 2 pp. [HYM 3057] Nasekomye Mongolii 9: 482-483.

 Peskov V. M., Emelyanov I. G., 2000: Phentics and phenogeography of the water vole (Arvicola terrestris). 6 pp. Vestnik zoologii 34(3): 39-44.

 Pessahna A. L. M., Araújo F. G., Azevedo M. C. C., Gomes I. D., 2000: Variacoes temporais e espaciais no composicao e estrutura da comunidade de peixes jovens da Baía de Sepetiba, Rio de Janeiro. 11 pp. Revta bras. Zool. 17(1): 251-261.

 Petal J., 1983: The effect of mineral fertilization on biocoenotic structure and matter economy on meadows. 17 pp. 

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

 Petercord R., 2000: Induzierte Resistenz in der Wechselwirkung zwischen der Rotbuche (Fagus sylvatica L.) und der Buchenwollschildlaus (Dryptococcus fagisuga Lind.). 5 pp. (in German). Mitt. Dtsch. Ges. Allg. Angew. Ent. 12: 575-579.

 Peterhans J. C. K., Fahr J., Huhndorf M. H., Kaleme P., Plumptre A. J., Marks B. D., Kizungu R., 2013: Bats (Chiroptera) from the Albertine Rift, eastern Democratic Republic of Congo, with the description of two new species of the Rhinolophus maclaudi group. 17 pp. Bonn zoological Bulletin 62(2): 186-202.

 Peterhans J. C. K., Huhndorf M. H., Plumptre A. J., Hutterer R., Kaleme P., Ndara B., 2013: Mammals, other than bats, from the Misotshi-Kabogo highlands (eastern Democratic Republic of Congo), with the description of two new species (Mammalia: Soricidae). 17 pp. Bonn zoological Bulletin 62(2): 203-219.

 Peters D. S., 1970: Merkmalswertung und Systematik. 8 pp. [HYM 6888] Entomologische Zeitschrift 80(5): 29-36.

 Peters G., 1978: Vergleichende Untersuchung zur Lautgebung einiger Feliden (Mammalia, Felidae). 206 pp. Spixiana suppl. 1: 1-206.

 Peters W. L., 1971: A revision of the Leptophlebiidae of the West Indies (Ephemeroptera). 48 pp. Smithsonian Contributions to Zoology

 Petersen B., 1966: The Noona Dan Expedition, 1961-62. Insects and other land arthropods. 22 pp. [M39] 

 Petersen G., 1959: Revision der Gattung Obesoceras Pet. 1957 (Lepidoptera, Tineidae). 3 pp. [LEP 2650] Acta Societatis entomologicae Cechosloveniae 56: 197-199.

 Petersen G., Matthiesen C., Francke W., Wyss U., 2000: Einfluß des Blattlaus-Hyperparasitoiden Alloxysta victrix auf das Suchverhalten des Primärparasitoiden Aphidius uzbekistanicus. 4 pp. (in German). Mitt. Dtsch. Ges. Allg. Agnew. Ent. 12: 175-178.

 Petersen-Esben P., 1931: Inventa entomologica itineris Hispanici et Maroccani, quod a. 1926 fecerunt Harald et Hakan Lindberg. VIII. Neuroptera. 6 pp. (in German). Soc. Scient. Fenn., Comm. Biol. 3:1-6.

 Peterson B. V., Hůrka K., 1974: Ten new species of bat flies of the genus Trichobius (Diptera: Streblidae). 18 pp. 

 Peterson B. V., Robinson W. H., 1976: A new North American genus and species of the family Phoridae (Diptera). 3 pp. 

 Peterson B. V., Ross A., 1972: A new species of Paratrichobius (Diptera: Streblidae) from Arizona. 4 pp. 

 Peterson M., Bellamy C. L., 2000: Contributions to the taxonomy of Australian Buprestidae (Coleoptera). Part III. A new genus and species of buprestid from Queensland and comments about its placement. 5 pp. [FHC 138] [M43] Folia Heyrovskyana 8(2): 127-131.

 Petkovski S. T., 1991: Moina weismanni Ishikawa, 1896, a rare East Palearctic faunistic element from S. W. Yugoslavia (Crustacea, Cladocera). 7 pp. Spixiana 14(1): 1-7.

 Petran A., 1968: Sur la dynamique du zooplancton du littoral roumain de la Mer Noire (la zone jusqu’a 30 m de profondeur). 7 pp. 

 Petrere M. Jr, 1983: Relationships among catches, fishing effort and river morphology for eight rivers in Amazonas State (Brazil), during 1976 – 1978. 16 pp. Amazoniana 8(2): 281-296.

 Petrere M. Jr, 1986: Amazon fisheries I – Variations in the relative abundance of Tambaqui (Colossoma macropomum Cuvier, 1818) based on catch and effort data of the gill-net fisheries. 21 pp. Amazoniana 9(4): 527-547.

 Petrere M. Jr, 1986: Amazon fisheries II – Variations in the relative abundance of tucunaré (Cichla ocellaris, C. temensis) based on catch and effort data of the trident fisheries. 13 pp. Amazoniana 10(1): 1-13.

 Petri K., 1902: Ein neuer Dorytomus aus Ungarn und Mähren. 2 pp. Wien. entomol. Ztg. 21: 156-157.

 Petri K., 1903: Agabus regalis, eine neue Art aus der Verwandtschaft des bipustulatus L. und Solieri Aubé. 2 pp. Wien. entomol. Ztg. 22: 49-50.

 Petri K., 1903: Macrotarsus similis n. sp. 2 pp. 

 Petrov A. A., 1999: Phenetical approach to the classification of the family Monocelididae (Turbellaria, Proseriata). 7 pp. Zoological sessions 281(1998): 39-45.

 Petrova A. D., 1982: Ekologo-faunističeskie fruppirovki kleščej-makrochelid (Parasitiformes, Mesostigmata, Macrochelidae) v Moskovskoj oblasti i značenie koprofilnych vidov. 14 pp. 

 Petrova A. D., 1982: O faune počvoobitajuščich gamazovych kleščej (Parasitiformes, Mesostigmata) Moskovskoj oblasti. 8 pp. 

 Petrovitz R., 1958: Neue asiatische Aphodiusarten (Col. Scarab.). 9 pp. Entomologische Arbeiten aus dem Museum G. Frey 9(1): 131-139.

 Petrovitz R., 1958: Vier neue Aphodiinaearten aus Afrika und Australien (Col. Scarab.). 5 pp. [M51] Entomologische Arbeiten aus dem Museum G. Frey 9(3): 799-803.

 Petrovitz R., 1961: Eine neue Aegialiinae-Art aus Japan (Col. Scarab.). 2 pp. [M13] [M51] Entomologische Arbeiten aus dem Museum G. Frey 12(1): 136-137.