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30.09.2008, 17:14 | #1 |
Welsfan
Registriert seit: 20.12.2004
Ort: 99427 Weimar
Beiträge: 3.673
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Two new species of Hypostomus Lacépède (Teleostei: Loricariidae) from the upper rio Paraná basin, Central Brazil
Cláudio H. Zawadzki, Claude Weber and Carla S. Pavanelli
Two new species of Hypostomus Lacépède (Teleostei: Loricariidae) from the rio ParanaÃ*ba and rio Grande basins, both in the upper rio Paraná basin, central Brazil, are described herein. One of them is distinguished from all congeners, except H. albopunctatus, by having the pectoral-fin spine length equal to or smaller than the pelvic-fin spine. From H. albopunctatus, it is distinguished by having round dark spots (vs. pale) on body and fins. The second species is distinguished from all congeners, except H. multidens and H. ternetzi, by having more than 115 teeth (vs. less than 109) per ramus on dentary and premaxilla. It is distinguished most readily from H. ternetzi by having teeth with two symmetrical (vs. asymmetrical) cusps. It is distinguished from H. multidens by having round dark spots (vs. pale) over body and fins.[/left] Quelle: Neotropical Ichthyology, 6(3):403-412, 2008 Viele Grüße Elko Geändert von L-ko (30.09.2008 um 19:04 Uhr). |
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