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20.03.2017, 18:04 | #1 |
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A new species of Otothyropsis from the upper R*o Paraná basin, Paraguay, with a discussion of the limits between Otothyropsis and Hisonotus
A new species of Otothyropsis (Siluriformes: Loricariidae) from the upper R*o Paraná basin, Paraguay, with a discussion of the limits between Otothyropsis and Hisonotus
Bárbara B. Calegari, Walter Gill Morlis und Roberto Reis Abstract Otothyropsis dialeukos is described from Itá creek, tributary to the upper R*o Paraná basin, Paraguay. The new species is distinguished from its congeners by having a unique caudal-fin coloration pattern composed of a brown to almost black background with roundish hyaline blotches in the middle of the outermost branched rays and a hyaline posterior border interrupted in middle rays; abdomen entirely covered by enlarged plates, without naked areas; longer pectoral- and dorsal-fin spines; absence of a raised crest of enlarged odontodes on the posterior portion of the parieto-supraoccipital, and other morphometric and meristic features. Morphological traits and geographic distributions of all species of Otothyropsis and Hisonotus are analyzed and a discussion on the limits between those genera is presented.Link zu Zootaxa (Paper zugangsbeschränkt) Gruß, Karsten
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Parotocinclus britskii, P. haroldoi, Corydoras bicolor, C. boesemani, C. coppenamensis, C. guianensis, C. nanus, C. punctatus, Harttiella crassicauda, Paralithoxus gr. bovalli, P. plallidimaculatus, P. planquetti, P. surinamensis, Pseudancistrus kwinti,... Geändert von Karsten S. (20.03.2017 um 18:07 Uhr). |
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