{"id":948,"date":"2020-06-13T05:25:58","date_gmt":"2020-06-13T08:25:58","guid":{"rendered":"https:\/\/www.ufrgs.br\/ictio\/?p=948"},"modified":"2020-06-13T05:25:58","modified_gmt":"2020-06-13T08:25:58","slug":"systematic-revision-of-the-neotropical-catfish-genus-scleronema-siluriformes-trichomycteridae-with-descriptions-of-six-new-species-from-pampa-grasslands","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/ictio\/2020\/06\/13\/systematic-revision-of-the-neotropical-catfish-genus-scleronema-siluriformes-trichomycteridae-with-descriptions-of-six-new-species-from-pampa-grasslands\/","title":{"rendered":"Systematic revision of the Neotropical catfish genus Scleronema (Siluriformes: Trichomycteridae), with descriptions of six new species from Pampa grasslands"},"content":{"rendered":"

<\/p>\n

Juliano\u00a0Ferrer and\u00a0<\/span>Luiz R.\u00a0Malabarba<\/span><\/p>\n

RESUMO<\/strong><\/p>\n

O g\u00eanero Neotropical\u00a0Scleronema<\/em>\u00a0\u00e9 revisado com base na an\u00e1lise do material-tipo e outros 1.713 esp\u00e9cimes recentemente coletados.\u00a0Scleronema<\/em>\u00a0\u00e9 diagnosticado de outros tricomicter\u00eddeos pelos seguintes caracteres derivados n\u00e3o amb\u00edguos: aba de pele na base do barbilh\u00e3o maxilar; aba de pele na margem posterior do op\u00e9rculo; articula\u00e7\u00e3o entre o autopalatino e o v\u00f4mer posicionada ventralmente, deixando as margens mediais dos autopalatinos muito pr\u00f3ximas entre si; e o autopalatino com um processo com formato de arco na sua superf\u00edcie dorsal.\u00a0Scleronema minutum<\/em>\u00a0e\u00a0S. operculatum<\/em>\u00a0s\u00e3o redescritas,\u00a0S. angustirostre<\/em>\u00a0\u00e9 considerada um sin\u00f4nimo j\u00fanior de\u00a0S. minutum<\/em>\u00a0e seis novas esp\u00e9cies s\u00e3o descritas. Um lect\u00f3tipo \u00e9 designado para\u00a0S. minutum<\/em>. As localidades-tipo de\u00a0S. angustirostre<\/em>,\u00a0S. minutum<\/em>\u00a0e\u00a0S. operculatum<\/em>\u00a0s\u00e3o revisadas com o intuito de corrigir informa\u00e7\u00f5es err\u00f4neas citadas em artigos e cat\u00e1logos ap\u00f3s suas descri\u00e7\u00f5es. As esp\u00e9cies de\u00a0Scleronema<\/em>\u00a0distribuem-se na bacia do rio da Plata e drenagens costeiras atl\u00e2nticas no sul do Brasil, sul do Paraguai, nordeste da Argentina e Uruguai, habitando rios e riachos ao longo do Pampa com fundos de areia ou cascalho. Dois grupos de esp\u00e9cies supostamente monofil\u00e9ticos, o grupo\u00a0S. minutum<\/em>\u00a0e o grupo\u00a0S. operculatum<\/em>, s\u00e3o reconhecidos no g\u00eanero e os padr\u00f5es de distribui\u00e7\u00e3o de suas esp\u00e9cies s\u00e3o discutidos.<\/p>\n

Link:\u00a0https:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S1679-62252020000200202&lng=en&nrm=iso&tlng=en<\/a><\/p>\n

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Scleronema operculatum, holotype (FMNH 58080; 65.9 mm SL), Brazil, Rio Grande do Sul, Cacequi, rio Cacequi, tributary to rio Santa Maria, rio Ibicu\u00ed basin, lower rio Uruguay. Photograph taken by Sandra Raredon.<\/p><\/div>\n

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Geographical distribution of the genus Scleronema. Circles and squares indicate species of the S. minutum group and S. operculatum group, respectively. Some symbols represent more than one collection locality. AR = Argentina; BR = Brazil; PY = Paraguay; UY = Uruguay.<\/p><\/div>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Juliano\u00a0Ferrer and\u00a0Luiz R.\u00a0Malabarba RESUMO O g\u00eanero Neotropical\u00a0Scleronema\u00a0\u00e9 revisado com base na an\u00e1lise do material-tipo e outros 1.713 esp\u00e9cimes recentemente coletados.\u00a0Scleronema\u00a0\u00e9 diagnosticado de outros tricomicter\u00eddeos pelos seguintes caracteres derivados n\u00e3o amb\u00edguos: aba de pele na base do barbilh\u00e3o maxilar; aba de pele na margem posterior do op\u00e9rculo; articula\u00e7\u00e3o entre o autopalatino e o v\u00f4mer posicionada ventralmente, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-948","post","type-post","status-publish","format-standard","hentry","category-sem-categoria"],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/948","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/comments?post=948"}],"version-history":[{"count":1,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/948\/revisions"}],"predecessor-version":[{"id":952,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/948\/revisions\/952"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/media?parent=948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/categories?post=948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/tags?post=948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}