The naturalist in Vancouver Island and British Columbia. By John Keast Lord ...

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Description physique de la République Argentine: d'après des observations personnelles et étrangères par H. Burmeister ; traduit de l'allemant par E. Maupas.

v. 5, pt. 1

A new species of Urostreptus (Diplopoda, Spirostreptidae): description and chromossome number

This work presents the description and chromosome number of Urostreptus atrobrunneus sp. nov. The genus until now had not been registered yet in the São Paulo State, Brazil. The meiotic analysis showed that the species presents 2n=24, XY. The C-banding revealed large blocks of constitutive heterochromatin and two heteromorphic chromosomal pairs, one of them corresponding to the sexual pair.

Description and ecological notes on Isoctenus malabaris sp. nov. (Araneae, Ctenidae) from southern Brazil

A new species, Isoctenus malabaris, is described from southern Brazil. This spider was abundantly collected with pitfall traps at Araucaria Forests (Mixed Ombrophilous Forest) domain. The activity of this species was studied in three distinct habitats (primary and secondary forests and silvicultures) during 20 months. A bimodal seasonal activity pattern, of males, was observed. Abundance differences of this species between habitats were not significant.

Travels in the Confederation, 1783-1784. From the German. Translated and edited by Alfred J. Morrison.

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Travels in the Confederation, 1783-1784. From the German. Translated and edited by Alfred J. Morrison.

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