{"id":426,"date":"2017-03-30T21:03:21","date_gmt":"2017-03-31T00:03:21","guid":{"rendered":"https:\/\/www.ufrgs.br\/ictio\/?p=426"},"modified":"2017-03-30T21:06:29","modified_gmt":"2017-03-31T00:06:29","slug":"a-new-species-of-hoplomyzon-siluriformes-aspredinidae-from-maracaibo-basin-venezuela-osteological-description-using-high-resolution-computed-microtomography-of-a-miniature-species","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/ictio\/2017\/03\/30\/a-new-species-of-hoplomyzon-siluriformes-aspredinidae-from-maracaibo-basin-venezuela-osteological-description-using-high-resolution-computed-microtomography-of-a-miniature-species\/","title":{"rendered":"A new species of Hoplomyzon (Siluriformes: Aspredinidae) from Maracaibo Basin, Venezuela: osteological description using high-resolution computed microtomography of a miniature species"},"content":{"rendered":"

Tiago P.\u00a0Carvalho\"researchgate<\/a>,\u00a0\u00a0<\/span><\/span>Roberto E.\u00a0Reis,\u00a0\u00a0\u00a0<\/span><\/span>John P.\u00a0Friel<\/span><\/p>\n

A new miniature species of banjo catfish of the genus Hoplomyzon<\/em> is described from the Lake Maracaibo Basin in Venezuela. The new species is distinguished from all its congeners by the straight anterior margin of the mesethmoid (vs.<\/em> a medial notch); a smooth and straight ventral surface of the premaxilla (vs.<\/em> presence of bony knobs on the ventral surface of premaxilla); absence of teeth on dentary (vs.<\/em> teeth present on dentary); configuration of ventral vertebral processes anterior to anal fin, which are composed of single processes anterior to anal-fin pterygiophore (vs.<\/em> paired process); presence of several filamentous barbel-like structures on the ventral surface of head of adults (vs<\/em>. small papillous structures in the ventral surface of head of adults); and 8 anal-fin rays (vs<\/em>. 6 or 7). An extensive osteological description is made of the holotype using high-resolution x-ray computed microtomography (HRXCT).<\/p>\n

Artigo:\u00a0http:\/\/www.scielo.br\/scielo.php?script=sci_arttext&pid=S1679-62252017000100216&lng=en&nrm=iso&tlng=en<\/a><\/p>\n

<\/p>\n

Fig. 1\u00a0<\/span>Hoplomyzon cardosoi<\/em>, holotype, MCNG 375, 18.5 mm SL, Ca\u00f1o La Raya, Zulia, Venezuela. Dorsal, left side lateral and ventral views.<\/span><\/p>\n

<\/p>\n

Fig. 3\u00a0<\/span>HRXCT model of skull and anterior body of Hoplomyzon cardosoi<\/em>, MCNG 375, holotype, 18.5 mm SL. a. Dorsal view. b. Lateral view of left side. acf: anterior cranial fontanel; ang: anguloarticular; bp: basipterygium; br: branchiostegal rays; cl: cleithrum; cv: complex vertebrae; den: dentary; dfr: dorsal-fin rays; fr: frontal; hyo: hyomandibula; iop: interopercle; let: lateral ethmoid; mes: mesethmoid; met: metapterygoid; mnp: middle nuchal plate; mx: maxilla; na: nasal; pal: autopalatine; pcf: posterior cranial fontanel; pch: posterior ceratohyal; pfr: pectoral fin rays; pll: posterior lateral line plates; pmx: premaxilla; ps: pectoral-fin spine; pto: pterotic; qu: quadrate; sc: postemporo-supracleithrum; soc: parietal-supraoccipital; spo: sphenotic; io1: infraorbitals; iop: interopercle; infraorbital 1; sup: subpreopercle; pv5: parapophysis of vertebra 5; v6: vertebra 6; v9: vertebra 9; v11: vertebra 11; vdp11: vertebral dorsal process of vertebra 11; vfr: pelvic-fin rays. Scale bar = 1 mm.\u00a0<\/span><\/p>\n

\n","protected":false},"excerpt":{"rendered":"

Tiago P.\u00a0Carvalho,\u00a0\u00a0Roberto E.\u00a0Reis,\u00a0\u00a0\u00a0John P.\u00a0Friel A new miniature species of banjo catfish of the genus Hoplomyzon is described from the Lake Maracaibo Basin in Venezuela. The new species is distinguished from all its congeners by the straight anterior margin of the mesethmoid (vs. a medial notch); a smooth and straight ventral surface of the premaxilla (vs. […]<\/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-426","post","type-post","status-publish","format-standard","hentry","category-sem-categoria"],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/426","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=426"}],"version-history":[{"count":4,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/426\/revisions"}],"predecessor-version":[{"id":431,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/posts\/426\/revisions\/431"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/media?parent=426"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/categories?post=426"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/wp-json\/wp\/v2\/tags?post=426"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}