A new dark-dotted species of Hypostomus Lacepede (Siluriformes: Loricariidae) from rio Paraguacu, Bahia State, Brazil

作者：Zanata Angela M^*; Sardeiro Byanca; Zawadzki Claudio H

来源：Neotropical Ichthyology, 2013, 11(2): 247-256.

• Coastal drainages
• Hypostominae
• Hypostomus chrysostiktos
• Northeastern Brazil
• Taxonomy

A new species of Hypostomus Lacepede is described from the rio Paraguacu basin, Bahia State, Brazil. The new species is distinguished from its congeners by having black and conspicuous dots on a pale background, which are similar in size on the head, trunk, and fins, along with ventral surface of head and abdomen naked or the latter plated exclusively on its anterior portion, absence of ridges on head and trunk, and caudal-fin lobes relatively similar in length. The new species further differs from the sympatric H. chrysostiktos by having seven branched dorsal-fin rays instead of 10-11 and represents the eleventh siluriform species endemic to the rio Paraguacu basin.

• 出版日期2013-6-28