996 resultados para 1874-1882


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t.6:ptie.2:pt.1-5 (1891)

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t.6:ptie.2:pt.4 (1888)

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A new genus, Travassosnema (Guyanemidae, Dracunculoidea) is proposed to include filariid worms having esophagus divided into muscular and glandular parts, with esophageal appendix near junction with intestine; anus functional; vulva anterior, well developed and functional in mature females. Travassonema travassosi sp. n., a parasite of Acestrorhynchus lacustris Reinhardt, 1874 from Três Marias Reservoir (São Francisco River) in the State of Minas Gerais, Brazil, is described. The generic and the specific names are a tribure to Brazilian parasitologist Lauro Travassos at his birth centenary.

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A description is given of the shell, radula, renal region, reproductive system and egg capsules of topotypic specimens of limnaea peregrina Clessin, 1882. This investigation intends contributing to define the specific identity of that nominal species. A close anatomical comparison with Lymnaea columella Say, 1817 from Michigan, USA, shows that both forms are indistinguishable, giving support to previous inferences from some authors. Data on egg hatching are presented.

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Article que estudia 'La Llumanera de Nova York' a partir de l' objectiu prèviament establert d' analitzar el posicionament dels editors del periòdic amb relació a les aspiracions identitàries cubanes

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Collectionneur : Sirot, Georges (1898-1977)

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Collectionneur : Sirot, Georges (1898-1977)

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Collectionneur : Sirot, Georges (1898-1977)