This dataset contains the digitized treatments in Plazi based on the original journal article Zanata, Angela M., Serra, Jane P. (2010): Hasemania piatan, a new characid species (Characiformes: Characidae) from headwaters of rio de Contas, Bahia, Brazil. Neotropical Ichthyology 8 (1): 21-26, DOI: 10.1590/S1679-62252010000100003, URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100003&lng=en&tlng=en
Hasemania piatan is described from the upper rio de Contas drainage, Bahia, northeastern Brazil. It can be easily distinguished from its congeners by having 18 principal caudal-fin rays. The new species differs further from congeners by a combination of seven branched dorsal-fin rays, six branched pelvic-fin rays, anal-fin base not covered by scales, presence of only five infraorbitals, and presence of a humeral blotch. It also can be distinguished by having 10-13 branched anal-fin rays, 27-32 scales on longitudinal series, 10-12 circumpeduncular scales, and one to three maxillary teeth.
Hasemania piatan é descrita para a bacia do alto rio de Contas, Bahia, nordeste do Brasil. Esta pode ser facilmente diferenciada das congêneres pela presença de 18 raios principais na nadadeira caudal. A espécie nova difere ainda das congêneres pela combinação de sete raios ramificados na nadadeira dorsal, seis raios ramificados na nadadeira pélvica, base da nadadeira anal sem escamas, presença de apenas cinco infraorbitais e presença de uma mancha umeral. Pode ainda ser diferenciada por ter 10- 13 raios ramificados na nadadeira anal, 27-32 escamas na linha longitudinal, 10-12 escamas ao redor do pedúnculo caudal e um a três dentes maxilares.
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