This paper presents an overview of the nominotypical subgenus of the genus Ventocoris Hahn, 1834 (Hemiptera: Heteroptera: Pentatomidae: Podopinae); the two species are identified, redescribed, illustrated, and keyed. Species of the sub-genus Astirocoris Jakovlev, 1894 known in Turkey are redescribed, a key is provided for the Turkish species of Ventocoris. Ventocoris trigonus (Krynicki, 1871), ...

Rare hybridisations between deeply divergent animal species have been reported for decades in a wide range of taxa, but have often remained unexplained, mainly considered chance events and reported as anecdotal. Here, we combine field observations with long-term data concerning natural hybridisations, climate, land-use, and field-validated species distribution models for two deeply divergent an...

The following three species of Helophoridae are newly recorded for New Brunswick, Canada: Helophorus (Kyphohelophorus) turberculatus Gyllenhal, Helophorus (Rhopaleloporus) oblongus LeConte, Helophorus (Rhopaleloporus) marginicollis Smetana. Hydrochus subcupreus Randall, family Hydrochidae, and the following 15 species of Hydrophilidae are newly reported for the province: Berosus fraternus LeCon...

Bufo marinus bladder H-K-ATPase belongs to the Na-K-ATPase and H-K-ATPase subfamily of oligomeric P-type ATPases and is closely related to rat and human nongastric H-K-ATPases. It has been demonstrated that this ATPase transports K(+) into the cell in exchange for protons and sodium ions, but the stoichiometry of this cation exchange is not yet known. We studied the electrogenic properties of B...

The Black Crowned Crane Balearica pavonina is a resident of the Sahel and Sudan Savanna regions of Africa, ranging from the Senegal Basin and Guinea-Bissau Drainage in West Africa to the Western Ethiopian Highlands and South-West Rift Valley in East Africa. There are two black crowned-crane subspecies. The West African Crowned Crane, Balearica pavonina pavonina occupies the western part of this...

The diving beetle Laccornis oblongus (Stephens, 1835) is recorded for the first time from Bavaria, southern Germany, which marks most south-westerly record of species known to date. Three specimens were collected in Murnauer Moos nature reserve Upper Bavaria. We summarize what about habitat Germany and provide photographs sampling site habitus, median lobe aedeagus, paramere species. a checklis...

The purpose of the investigation was to determine whether filaments within smooth muscle cells changed their orientation (with respect to the main axis of the cell) during contraction. The stomach muscle of Bufo marinus was used, since its cells may be easily isolated, enabling direct observation in living cells. In addition to still micrography, cinemicrography was used to record continuously ...

We present several variations of a model of gain control in the retina of the toad Bufo marinus, and use them to fit the threshold-vs-intensity data of an actual toad ganglion cell [Donner et al. (1990). Journal of General Physiology, 95, 733-753]. Our models are based on a proposal by Donner et al. that the gain (neural spike per photon ratio) of toad ganglion cells is set by a sequence of two...