Neotropical Helminthology (Neotrop. Helminthol.) is a biannual electronic publication submitted to arbitration outside of the Peruvian Association of Helminthology and Associated Invertebrates (APHIA). Original and unpublished work is accepted in Spanish, Portuguese and English, mainly from the neotropical fauna of helminths of man, animals, plant nematodes, annelids, pentastomids, nematomorphs, hirudineans,temnocephalids, mesozoans, as well as acoelomates and pseudocoelomates. Manuscripts may be on systematics, morphology, biology, ecology, immunology, biochemistry, nutrition, physiology, pathology, clinical features, molecular biology, genetics, toxicology, electron microscopy, epidemiology / epizootiology, geographic information systems, and education.