By Rego, Amilcar Arandas.
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8 páginas , Rego, A. A.-Instituto Oswaldo Cruz, Departamento de Helmintología, Av. Brasil 4365, 21.045-900, Río de Janeiro-Río de Janeiro, Brazil

Place hold on The metascolex in proteocephalids

By Willey, Gordon R..
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559 páginas , Colección privada de Pedro Krapovickas. 26 x 22 cm.

Place hold on An introduction to American Archaeology : volume two South America

By Arcifa, Marlene Sofia.
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12 páginas

Place hold on Fluctuations and vertical migration of Chaoborus in a tropical Brazilian Reservoir : Lake Monte Alegre / M. S. Arcifa

By Darrigran, Gustavo Alberto.
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5 páginas

Place hold on The reproductive cycle of Limnoperna fortunei - Dunker,1857 - - Mytilidae - from a neotropical temperate locality

By Quirós, Rolando.
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13 páginas , Instituto Nacional de Investigación y Desarrollo Pesquero, CC 175, Playa Grande, 7600 Mar del Plata

Place hold on Factors related to variance of residuals in chlorophyll-total phosphorus regressions in lakes and reservoirs of Argentina

By Almirón, Adriana Edith.
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8 páginas , Almirón, A.-Dep. Cient. Zool. Vertebrados, Facultad de Cs. Naturales y Museo de La Plata, 1900 La Plata, Argentina

Place hold on Ichthyogeographic boundary between the brazilian and austral subregions in South America, Argentina

By Darrigran, Gustavo Alberto.
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5 páginas , Darrigran, G.-Departamento Científico de Zoología de Invertebrados. Facultad Ciencias Naturales y Museo 1900 La Plata Argentina. invasion@way.com.ar

Place hold on Invasion of the exotic freshwater mussel Limnoperna fortunei - Dunker, 1857 - - Bivalvia: Mytilidae - in South America