The colonial ascidian Botryllus schlosseri is a cosmopolitan species, commonly found in sheltered temperate marine environments, primarily marinas/harbors. B. larvae settle immediately upon release on hard substrates vicinity (<50cm) to maternal colonies, suggesting genetically structured populations fine spatial scales. By employing seven microsatellite loci, this study characterizes long-t...

Morula cells (MCs) represent the most abundant circulating hemocyte of the compound ascidian Botryllus schlosseri. They are cytotoxic cells involved in the rejection reaction between contacting, genetically incompatible colonies. Upon the recognition of foreign substances, they degranulate and release their content, which contribute to the cell death along the contact borders. A major role in M...

The Amphicyoninae of the early Miocene from locality Tucho?ice, Czech Republic, are represented by three species. Two them classified within tribe Amphicyonini: Paludocyon bohemicus (Schlosser, 1899) as type species n. gen., and a large-sized amphicyonid determined Megamphicyon carnutense (Antunes et Ginsburg, 1977). Dehmicyon gen. aff. schlosseri is two small teeth. This new genus has been pro...