995 resultados para Ellsworth, Oliver, 1745-1807.
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Livr. 3
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Part 5, Mollusca
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Magdeburg, Univ., Fak. für Informatik, Diss., 2011
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Magdeburg, Univ., Fak. für Mathematik, Habil.-Schr., 2012
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Magdeburg, Univ., Med. Fak., Diss., 2006
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[s.c.]
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v. 5, pt. 1
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1745
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v. 2 (1745)
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v.1:no.5(1896)
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v.1:no.2(1895)
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v.1:no.4(1896)
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v.1:no.1(1895)
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A key to species groups of the genus Belostoma Latreille, 1807, using new taxonomic characters are presented as well as the revision of the four species included in the denticolle group: B. denticolle Montandon, 1903, and three new species: B. orbiculatum from eastern Argentina and southern Brazil, B. retusum from eastern Argentina and B. amazonum from northern Brazil which are described and illustrated.
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The sternal glands of the abdomen of Oxaea flavescens (Klug, 1807) consist of class III glandular cells around a reservoir constituted by branched folds of the intersegmental membrane of segments III, IV and V. The gland cells are rich in rough endoplasmic reticulum and produce a secretion with mucous aspect. The treatment with oxidated osmium and ruthenium red showed numerous Golgi regions in the cell and carbohydrates absorption from the haemolymph, respectively. The high degree of development of the glands suggests an important function to the species, although still unknown.