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A new species of Panaqolus (Siluriformes: Loricariidae) from the rio Madeira basin with remarkable intraspecific color variation

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Academic year: 2019

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Fig. 1. Dorsal, lateral, and ventral views of Panaqolus nix, holotype, INPA 39606, male, 110.1 mm SL, Brazil, Rondônia, rio  Madeira, cofferdam at construction site of Santo Antônio hydroelectric power plant (former Santo Antônio rapids) (Photos  by B
Table  1.  Selected  morphometrics  of  Panaqolus  nix.  Values  are  given  as  percents  of  standard  length  or  head  length
Fig. 2. Details of the mouth of Panaqolus nix: the dentary  tooth  rows  are  in  an  acute  angle  (below)  or  even  nearly  parallel (above) (MZUSP 114009, 68.8 mm + 76.2 mm SL)
Fig. 3. Variation in the color of Panaqolus nix: a) nearly white specimen (UFRO-I 10050, 90.4 mm SL) b), intermediately  colored specimen (UFRO-I 7968, 81.4 mm SL) (Photos by B
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