Anonymous (1830) Echinorhynches, Catalogue of the Royal College

Pennycuick, L. (1971) Difference in the parasite infections in three-spined sticklebacks
(Gasterosteus aculeatus L.) of different sex, age and size, Parasitology 63:(3)407-418, -
penny.1971c√ /Echinorhynchus clavula
Pennycuick, L. (1971) Seasonal variations in the parasitic infections in a population of threespined
sticklebacks, Gasterosteus aculeatus L, Parasitology 63:(3)373-388, -
penny.1971d√ /Echinorhynchus clavula
Pennycott, T. W. (1998) Lead poisoning and parasitism in a flock of mute swans (Cygnus olor) in
Scotland, Veterinary Record 142 (?):(1)13-17, -penny.1998a• /Polymorphus minutus
/Profilicollis anatis
Pennycott, T. W. (1999) Causes of mortality in mute swans Cygnus olor in Scotland 1995-1996,
Wildfowl 50:11-20, -penny.1999a•
Pequignot, H. (1971) Anthropozoonoses and public health in developed countries, Medecine
Afrique Noire 18:(3)229-243, -pequi.1971a• /Macracanthorhynchus moniliformis
Percebois, G. (1986) La recherche d'helminthes parasites dans des restes archeologiques,
Bulletin de l'Academie et de la Societe Lorraines des Sciences 25:(3)75-87, -
perce.1986a•
Perdiguero-Alonso, Diana, Francisco E. Montero, Juan Antonio Raga and Aneta Kostadinova
(2008) Composition and structure of the parasite faunas of cod, Gadus morhua L.
(Teleostei: Gadidae), in the north east Atlantic, Parasites & Vectors 1:(23)1-18, -
perdi.2008a•
Pereira, Carlos (1936) Nota sobre a acanthella de Oncicola oncicola (v. Ihering, 1892), Arquivos
do Instituto Biologico, São Paulo 7:245-252, (A note about the acanthella of Oncicola
oncicola (v. Ihering, 1892)) -pereic.1936a√ /Oncicola oncicola
Pereira, Carlos A. (1936) A questão dos helmintos na pecuária de Pernambuco, Boletin de la
Secretaria de Agricultura y Industrias Viação, Recife 2:(1)274-283, -pereic.1936b•
/Macracanthorhynchus hirudinaceus
Pereira-Bueno, J. M., L. M. Ortega-Mora, R. González-Paniello, E. Reguera-de-Castro and F.
Reyero-Fernández (1994) Parasites of wild boar in Riano Mountain (León, Spain),
Ponencias y Comujnicaciones del I Congreso de Veterinarios de Castilla y León
Excmas, Diputación Provincial de León, Gráficas Alse, León, España: 289-290. [in
Spanish] -pereirb.1994a• /Macracanthorhynchus hirudinaceus
Pereira, R. C. S. and D. A. Machado Filho (1968) Contribução ao estudo da fauna
helmintólgica da Amazônia, Revista Brasileira de Biologia 28:(3)283-288, (A
contribution to the study of the helminth fauna of Amazonia) -pereirr.1968a√
/Hamaniella microcephala /Gigantorhynchus lutzi
844