For many years, the classification of the freshwater bullhead has been a topic of much confusion. So what species do we have in Britain, and how did they get here? Growing up along the river Avon, before I’d ever considered fishing with rod and line, as all young children should,
The river blenny (Salaria fluviatilis) is rarely mentioned in the natural history literature of Cyprus. This has led to doubts about its existence there. Mistakes with mismatched fish collections have occurred in the past, so it is worth asking whether the recorded specimens are actually from Cyprus and whether the
The Guiana Shield region in northern South america has a rich and diverse ichthyofauna with a high degree of endemism. the fauna of this region is shaped not only by the geology of the area but climatic events as well. the Rupununi district of southwestern Guyana is an area where
La iniciativa de lOS autores ha sido auspiciada por la Comisión Científica de La provincia de Buenos Aires. Su patronazgo, solicitado y otorgado sin retaceos, ha sido la esencia de esta realización. La Dirección de Conservación de la Fauna de la Província, interesada en el conocimiento cabal de los recursos
Evidence available for most inland water and terrestrial organisms highlights the significant role played by southern Italy, Sicily and the Maltese islands as refuges during Pleistocene climatic fluctuations. However, to date, the hypothesis that these areas may have acted as Pleistocene refugia for the freshwater crab Potamon fluviatile has not
n the Maltese language the freshwater crab or river crab {Potamon sp.) has a common name and is referred to as Qabru (plural: Qwabar). Thanks to this common name it is possible to know the first probable reference, in the literature, to the freshwater crab in Malta. In 1647 the
Tropical regions contain many more species than do temperate and polar regions; however, explanations as to why remain unclear; for example, see [1, 2]. The Amazon Basin is particularly species rich and harbors arguably the world’s greatest terrestrial [3, 4] and freshwater [5] biodiversity. Numerous potential processes generating this diversity
This publication has been prepared by IUCN (International Union for Conservation of Nature). The designation of geographical entities in this book, and the presentation of the material, do not imply the expression of any opinion whatsoever on the part of the European Commission or IUCN concerning the legal status of
Systematics of the cichlid genus Symphysodon has been investigated and three species are recognised: S. discusHeckel, 1840 (synonym: S. discus willischwartzi Burgess, 1981); S. aequifasciatus Pellegrin, 1904 (synonyms: S. discus var. aequifasciata Pellegrin, 1904; S. aequifasciata aequifasciata sensu Schultz, 1960; S. Discus Tarzoo – sic –Lyons, 1960); and S. haraldi,
The Western Ghats is one of the world’s most heavily populated Biodiversity Hotspots providing for and supporting 400million people through water for drinking, transport, irrigation, and hydroelectric power, together with food and resources to sustain livelihoods. However, the pace of growth of the Indian economy and rates of industrial and
Potamotrygon boesemani, new species, is described from the Corantijn river drainage in Surinam. The species has a diagnostic dorsal color pattern formed by deep orange to red ocellated spots of irregular form, encircled by relatively broad black rings. Potamotrygon boesemani is distinguished from other ocellated congeners (P. motoro, P. henlei
The monotypic species Ossubtus xinguense was originally described based on scarce material putatively divided into juveniles and adults. Ossubtus xinguense has a restricted distribution and was previously known only from a few rapids downstream of the city of Altamira, in the Volta Grande stretch of the Middle Xingu River. Until
Abstract. This study is a comprehensive review of fish fauna data for the Xingu River system. Information was compiled from seven field surveys (conducted between 2001 and 2002), bibliographic references, and museum collection records.To provide data on the spatial distribution of fish species, the river basin was divided into six
