{"id":1034,"date":"2020-11-09T17:43:05","date_gmt":"2020-11-09T20:43:05","guid":{"rendered":"https:\/\/www.ufrgs.br\/ictio\/?p=1034"},"modified":"2020-11-09T17:43:05","modified_gmt":"2020-11-09T20:43:05","slug":"a-new-species-of-mastiglanis-bockmann-1994-siluriformes-heptapteridae-from-the-amazon-river-basin-peru","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/ictio\/2020\/11\/09\/a-new-species-of-mastiglanis-bockmann-1994-siluriformes-heptapteridae-from-the-amazon-river-basin-peru\/","title":{"rendered":"A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru"},"content":{"rendered":"

DARIO R. FAUSTINO-FUSTER<\/strong>, HERN\u00c1N ORTEGA<\/em><\/p>\n

Abstract<\/strong><\/p>\n

Mastiglanis is a genus of heptapterid catfish represented by two valid species. These freshwater species are widely distributed along the Amazon, Orinoco, and Maroni River basins. However, a taxonomic review of specimens collected in the Putumayo and Nanay rivers, Amazon River basin in Peru revealed a new species of Mastiglanis. A morphological analysis was completed for morphometric (36 measurements) and meristic (20 counts) data. Osteological counts and descriptions were made from clear and stained specimens and x-rays images. The new species of Mastiglanis differs from M. asopos and M. durantoni by having a long pelvic fin, short snout, eight branched anal-fin rays, and a higher number of vertebrae and gill rakers. The distribution of the new species is restricted to the upper Amazon River basin.<\/p>\n

link:\u00a0https:\/\/www.biotaxa.org\/Zootaxa\/article\/view\/zootaxa.4820.2.6<\/a><\/p>\n

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Figure 2. Dorsal view of cranium of Mastiglanis yaguas, paratype, MUSM 61686, 42.7 mm SL. Abbreviations: af = anterior fontanel; ap = autopalatine; ep = epioccipital; ex = exoccipital; fr = frontal; le = lateral ethmoid; mx = maxilla; na = nasal; pf = posterior fontanel; pm = premaxilla; pt = pterotic; soc = supraoccipital; sp = sphenotic; tp4a = anterior branch of transverse process of vertebra 4; tp4b = posterior branch of transverse process of vertebra 4; tp5 = transverse process of vertebra 5 . Arrow = symphysial region of premaxilla.<\/p><\/div>\n

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Figure 1. Mastiglanis yaguas, new species, MUSM 66612, holotype, 49.1 mm SL, (A) Lateral view of right side (image flipped), (B) Dorsal view, (C) Ventral view. Bar = 1 cm.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

DARIO R. FAUSTINO-FUSTER, HERN\u00c1N ORTEGA Abstract Mastiglanis is a genus of heptapterid catfish represented by two valid species. These freshwater species are widely distributed along the Amazon, Orinoco, and Maroni River basins. However, a taxonomic review of specimens collected in the Putumayo and Nanay rivers, Amazon River basin in Peru revealed a new species of […]<\/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-1034","post","type-post","status-publish","format-standard","hentry","category-sem-categoria"],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/1034","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=1034"}],"version-history":[{"count":1,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/1034\/revisions"}],"predecessor-version":[{"id":1037,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/1034\/revisions\/1037"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/media?parent=1034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/categories?post=1034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/tags?post=1034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}