Halipegus dubius Klein, 1905 (Trematoda, Hemiuridae): a redescription, with notes on the working of the ovarian complex

A redescription of Halipegus dubius Klein, 1905, of Brazilian frogs Leptodactylus pentadactylus and L. ocellatus, is presented. The parasite was found exclusively in the buccal cavity, in number varying from 1 (in most instances) to 3, and exceptionally 25 (one instance). Morphological data were based on 40 whole-mounted specimens and 4 serially sectioned ones. Larval development takes place in planorbid snails (Biomphalaria glabrata and B. tenagophila) and in an undetermined species of cyclops. Working of the ovarian complex was followed by microscopical observation of life specimens. Constrating with the similarity of the four American species of Halipegus currently recognized as valid, they can be easily separated by the characters of their cercariae.

Rhipidocotyle gibsoni n. sp. from a Brazilian Freshwater Fish and Rhipidocotyle froesi n.sp. for r. baculum (linton, 1905) of Eckmann (1932) (Bucephalidae; Digenea)

Rhipidocotyle gibsoni n.sp. is described from Acestrorhynchus lacustris from Paraná River, brazil. It is most closely related to r. froesi n. sp. and to R. eckmanni in the shape of the cephalic hood, differing in the extent of the uterus, in the position of the vitelline follicles and in that the host is a freshwater fish. Rhipidocotyle froesi n. sp. is proposed for the marine specimens described by Eckmann (1932) as R. baculum (Linton, 1905).

Oviposition and eclosion periods of Ixodes didelphidis Fonseca and Aragão, 1951 (Acari: Ixodidae) under laboratory conditions

Oviposition and eclosion periods for Ixodes didelphidis were observed under two temperatures (25ºC and 27ºC) and 90-95% humidity. Although there was a significant increase in the eclosion period (p<0.05) and a tendency to increase the oviposition period at 25ºC, there was neither significant differences in the interval (days), until maximum peak of eclosion nor in the number of emerging larvae during the peak nor the total number of emerged larvae. These temperature values are not critical for embryological development of the species. Because at 27ºC and under high humidity the oviposition and eclosion periods are shorter, and the percentage of emerged larvae is higher, we consider this to be the ideal temperature for laboratory studies.

Overbeck Franz Camille (1837-1905)

(Résumé de l'ouvrage) Cette publication s'inscrit dans une perspective sociale et culturelle : articuler des données historiques par rapport à leurs significations, leurs résonances imaginaires, leurs effets sociaux, leur statut de références symboliques. Elle offre ainsi au lecteur un panorama du protestantisme d'aujourd'hui, avec ses forces et ses faiblesses. Cette nouvelle édition (coédition avec Labor et Fides) est entièrement revue, corrigée et augmentée. Elle est constituée de 48 "grands dossiers" et d'environ 1400 "petites rubriques" consacrés soit à des personnalités soit à des notions significatives du "fait protestant". Cette encyclopédie s'inscrit dans les débats contemporains où le rapport au religieux s'impose comme objet de réflexion au coeur d'une Europe construite dans une matrice chrétienne.

The administration of atomoxetine during alcohol deprivation induces a time-limited increase in alcohol consumption after relapse.

The administration of selective serotonin reuptake inhibitors (SSRIs) typically used as antidepressants increases alcohol consumption after an alcohol deprivation period in rats. However, the appearance of this effect after the treatment with selective noradrenaline reuptake inhibitors (SNRIs) has not been studied. In the present work we examined the effects of a 15-d treatment with the SNRI atomoxetine (1, 3 and 10 mg/kg, i.p.) in male rats trained to drink alcohol solutions in a 4-bottle choice test. The treatment with atomoxetine (10 mg/kg, i.p.) during an alcohol deprivation period increased alcohol consumption after relapse. This effect only lasted one week, disappearing thereafter. Treatment with atomoxetine did not cause a behavioral sensitized response to a challenge dose of amphetamine (1.5 mg/kg, i.p.), indicating the absence of a supersensitive dopaminergic transmission. This effect is markedly different from that of SSRI antidepressants that produced both long-lasting increases in alcohol consumption and behavioral sensitization. Clinical implications are discussed.

Species of Anisepyris Kieffer, 1905 (Hymenoptera, Bethylidae) collected in Cachoeira da Fumaça and Forno Grande State Parks, Espírito Santo, Brazil

Six species of Anisepyris Kieffer, 1905 were collected in Cachoeira da Fumaça (Alegre) and Forno Grande (Castelo) State Parks. Two of them are already known: Anisepyris lobatus Santos & Azevedo, 2000 and Anisepyris rectus Santos & Azevedo, 2000. Other four are described as new: Anisepyris attenuatus sp. nov., Anisepyris divisus sp. nov., Anisepyris inconspicuus sp. nov., and A. rotundus sp. nov.; each new species is illustrated. Two uncommon characters for Anisepyris, such as an inconspicuous anterior carina of the pronotum, and a lower mesopleural fovea partially open on the lower margin were observed being both the characters found in A. inconspicuus sp. nov. and only the first character in A. attenuatus sp. nov.