{"id":933,"date":"2020-06-13T04:04:29","date_gmt":"2020-06-13T07:04:29","guid":{"rendered":"https:\/\/www.ufrgs.br\/ictio\/?p=933"},"modified":"2020-06-13T04:04:29","modified_gmt":"2020-06-13T07:04:29","slug":"taxonomical-study-of-trichomycterus-siluriformes-trichomycteridae-from-the-ribeira-de-iguape-river-basin-reveals-a-new-species-recorded-in-the-early-20th-century","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/ictio\/2020\/06\/13\/taxonomical-study-of-trichomycterus-siluriformes-trichomycteridae-from-the-ribeira-de-iguape-river-basin-reveals-a-new-species-recorded-in-the-early-20th-century\/","title":{"rendered":"Taxonomical study of Trichomycterus (Siluriformes: Trichomycteridae) from the Ribeira de Iguape River basin reveals a new species recorded in the early 20th century"},"content":{"rendered":"

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Laura M. Donin | Juliano Ferrer | Tiago P. Carvalho<\/strong><\/div>\n
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Abstract<\/h3>\n
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A new species of\u00a0Trichomycterus\u00a0<\/i>endemic to the Ribeira de Iguape River basin, southeastern Brazil, was studied based on morphological and molecular evidence. This species had an outer layer of coloration composed of scattered, round, black or dark\u2010brown spots smaller or equivalent in size to the circumference of the eye; eight pectoral\u2010fin rays; 28\u201329 opercular odontodes; 54\u201356 interopercular odontodes; and supraorbital line of the laterosensory system not interrupted, with pores s2 absent. Two other species of\u00a0Trichomycterus\u00a0<\/i>from the Ribeira de Iguape River basin are recorded, and their taxonomic status is discussed:\u00a0Trichomycterus alternatus\u00a0<\/i>and\u00a0Trichomycterus jacupiranga\u00a0<\/i>were not differentiated using molecular analysis but may be consistently distinguished based on morphology. The phylogenetic relationships of the co\u2010occurring species,\u00a0T. alternatus\u00a0<\/i>and\u00a0Cambeva zonata\u00a0<\/i>, were inferred using mitochondrial data, reinforcing the taxonomic status of these recently revised species that have a complex taxonomy. In addition, a new combination for\u00a0Trichomycterus taroba\u00a0<\/i>with its inclusion in the genus\u00a0Cambeva\u00a0<\/i>is recommended.<\/p>\n<\/div>\n

Link:\u00a0https:\/\/onlinelibrary.wiley.com\/doi\/abs\/10.1111\/jfb.14278<\/a><\/p>\n<\/div>\n

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FIGURE. Colour variation in live specimens of Trichomycterus lauryi. (a) UFRGS 24536, 60.7 mm LS, c\u00f3rrego do Queimado; (b) UFRGS 24537, 77.0 mm LS, rio Betari; (c) UFRGS 24537, 68.9 mm LS, rio Betari; Ribeira de Iguape River basin<\/p><\/div>\n

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FIGURE. Distribution of Trichomycterus species in Ribeira de Iguape River and neighbouring coastal basins. Red circles: Trichomycterus lauryi; blue star: Trichomycterus jacupiranga and type locality of T. lauryi; yellow triangles: Trichomycterus alternatus; yellow pentagon: paratype of Cambeva zonata (FMNH 58572) presently identified as T. alternatus; green square: C. zonata<\/p><\/div>\n<\/div>\n

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

Laura M. Donin | Juliano Ferrer | Tiago P. Carvalho Abstract A new species of\u00a0Trichomycterus\u00a0endemic to the Ribeira de Iguape River basin, southeastern Brazil, was studied based on morphological and molecular evidence. This species had an outer layer of coloration composed of scattered, round, black or dark\u2010brown spots smaller or equivalent in size to the […]<\/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-933","post","type-post","status-publish","format-standard","hentry","category-sem-categoria"],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/933","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=933"}],"version-history":[{"count":1,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/933\/revisions"}],"predecessor-version":[{"id":936,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/933\/revisions\/936"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/media?parent=933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/categories?post=933"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/tags?post=933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}