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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Revisão taxonômica de Gymnorhamphichthys (Gymnotiformes, Rhamphichthyidae) com descrição de duas novas espécies

RAMOS, Cristiane do Socorro January 2010 (has links)
Submitted by Edisangela Bastos (edisangela@ufpa.br) on 2013-03-06T22:12:11Z No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_RevisaoTaxonomicaGymnorhamphichthys.pdf: 868348 bytes, checksum: e3db7a24a27492dbd2c11245bff10530 (MD5) / Approved for entry into archive by Ana Rosa Silva(arosa@ufpa.br) on 2013-03-11T16:27:40Z (GMT) No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_RevisaoTaxonomicaGymnorhamphichthys.pdf: 868348 bytes, checksum: e3db7a24a27492dbd2c11245bff10530 (MD5) / Made available in DSpace on 2013-03-11T16:27:40Z (GMT). No. of bitstreams: 2 license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Dissertacao_RevisaoTaxonomicaGymnorhamphichthys.pdf: 868348 bytes, checksum: e3db7a24a27492dbd2c11245bff10530 (MD5) Previous issue date: 2010 / A revisão taxonômica do gênero Gymnorhamphichthys é apresentada, a diagnose para o gênero é ampliada, cinco espécies nominais são reconhecidas e duas espécies novas são descritas: Gymnorhamphichthys sp. n. 1, de rios da bacia do Paraguai, é diagnosticada pelas barras longas delgadas dorsais do corpo alcançando ou ultrapassando a linha lateral, número de barras 6-19 e baixo número de raios da anal 141-177 entre outros caracteres; Gymnorhamphichthys sp. n. 2, da bacia Amazônica, é diagnosticada pela presença de uma mascara escura na cabeça, barras largas com 26 m forma retangular e pelo elevado número de raios da anal 185-260 entre outros caracteres. Uma chave dicotômica para espécies é fornecida. / A taxonomic revision of the genus Gymnorhamphichthys is presented, a diagnosis for the genus is modified and expanded, five nominal species are recognized, and two new species are described: Gymnorhamphichthys sp. n. 1, from rivers of Paraguay basin, is diagnosed by thin bars on the dorsal region of its body, bars long slender reaching or exceeding below the lateral line, number of bars 6-19, and by the low number of anal rays (141-177), among other characters; Gymnorhamphichthys sp. n. 2, from Amazon basin, is diagnosed by the presence of a dark mask on the head, wide rectangular-shaped bars, and by the high number of anal rays (185-260), among other characters. A dichotomous key to species is provided.

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