02046nas a2200229   4500008004100000022001400041245010400055210006900159260001600228300001100244520130700255653001201562653003001574653002801604653001501632653001901647653001501666100001801681700002901699700001801728856007001746       2016                        eng d  a1608-591400a<i>Marcusenius desertus</i> sp. nov. (Teleostei: Mormyridae), a mormyrid fish from the Namib desert0 aiMarcusenius desertusi sp nov Teleostei Mormyridae a mormyrid fi  cJul-03-2016  a1 - 183 a<p>We critically compared Marcusenius specimens from the mouth of the Cunene River on the Namibia/Angola border, a harsh desert environment on the Atlantic Ocean coast virtually devoid of aerial insects with aquatic larvae which are an important food item, with Marcusenius multisquamatus Kramer &amp; Wink, 2013 from the escarpment region of that same river, in a relatively rich and productive subtropical savannah environment. River mouth specimens were differentiated in morphology and electric organ discharges, as determined by ANOVA/MANOVA comparisons, principal component and discriminant analyses on morphological and electrophysiological characters, and genetics, including sequences of the mitochondrial cytochrome b gene, indicating reproductive isolation. Specimens from the river mouth differed from M. multisquamatus, their closest relatives, by having a shorter snout, a smaller eye diameter, and smaller nares separation. River mouth specimens were also differentiated from other, increasingly less-close relatives, such as M. altisambesi Kramer et al., 2007 from the Okavango River, Botswana, and from M. krameri Maake et al., 2014 from the Limpopo System, South Africa. We therefore designate the new species Marcusenius desertus sp. nov. for the Cunene River mouth population.</p>
10aecology10aelectric organ discharges10agenetic differentiation10amorphology10aphylogeography10aspeciation1 aKramer, Bernd1 avan der Bank, F., Herman1 aWink, Michael  uhttp://www.tandfonline.com/doi/full/10.2989/16085914.2015.1137855