{"id":131616,"date":"2026-11-02T13:11:58","date_gmt":"2026-11-02T07:41:58","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=131616"},"modified":"2026-11-02T14:42:20","modified_gmt":"2026-11-02T09:12:20","slug":"exostoma-nasibarbatum","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/exostoma-nasibarbatum\/","title":{"rendered":"Exostoma nasibarbatum: Scientists Discover New Catfish Species in Manipur"},"content":{"rendered":"<h2><b>Exostoma nasibarbatum Latest News<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A new species of rare glyptosternine catfish, named Exostoma nasibarbatum, has been recently identified in Manipur. <\/span><\/p>\n<h2><b>About Exostoma nasibarbatum<\/b><\/h2>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It is a new species of <\/span><b>catfish<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It was discovered in <\/span><b>Manipur<\/b><span style=\"font-weight: 400;\">, during a survey of the <\/span><b>Bupal stream<\/b><span style=\"font-weight: 400;\">, a<\/span><b> tributary of the Dujang River <\/b><span style=\"font-weight: 400;\">in the Chindwin river system along the <\/span><b><a href=\"https:\/\/vajiramandravi.com\/current-affairs\/india-myanmar-border-fencing\/\" target=\"_blank\">Myanmar border<\/a>.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It inhabits<\/span><b> fast-flowing, turbulent streams <\/b><span style=\"font-weight: 400;\">characterised by boulders and rocky substrates.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The species has several morphological <\/span><b>adaptations <\/b><span style=\"font-weight: 400;\">that enable it to <\/span><b>survive in fast-flowing waters.\u00a0<\/b>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">These include a <\/span><b>strongly flattened head and body, enlarged paired fins <\/b><span style=\"font-weight: 400;\">with <\/span><b>adhesive striae,<\/b><span style=\"font-weight: 400;\"> and <\/span><b>flattened maxillary barbels<\/b><span style=\"font-weight: 400;\"> that<\/span><b> aid attachment to rocky substrates.\u00a0<\/b><\/li>\n<\/ul>\n<\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The species has been named <\/span><b>nasibarbatum <\/b><span style=\"font-weight: 400;\">in <\/span><b>reference <\/b><span style=\"font-weight: 400;\">to its<\/span><b> prominent nasal barbel, <\/b><span style=\"font-weight: 400;\">which <\/span><b>extends beyond the posterior margin of the orbit.\u00a0<\/b>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">The name combines the Latin words nasus, meaning nose, and barba, meaning beard, referring to the<\/span><b> elongated, tactile sensory organ located near the nostril.\u00a0<\/b><\/li>\n<\/ul>\n<\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">It belongs to the <\/span><b>genus Exostoma.<\/b>\n<ul>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Exostoma is a genus of <\/span><b>sisorid catfishes native to Asia<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Sisorid catfishes are <\/span><b>freshwater catfishes<\/b><span style=\"font-weight: 400;\"> belonging to the family Sisoridae, under the order Siluriformes.\u00a0<\/span><\/li>\n<li style=\"text-align: justify;\"><b>23 valid species<\/b><span style=\"font-weight: 400;\"> are currently recognised within the genus, distributed across major <\/span><b>river systems in Southeast Asia<\/b><span style=\"font-weight: 400;\"> and the<\/span><b> Indian subcontinent.\u00a0<\/b><\/li>\n<li style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Of these, seven are considered valid species in the Chindwin-Irrawaddy drainage.\u00a0 <\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><b>News: <\/b><a href=\"https:\/\/assamtribune.com\/north-east\/rare-catfish-discovery-puts-manipurs-unexplored-hill-streams-in-scientific-focus-1621758\" target=\"_blank\" rel=\"nofollow noopener\"><b>AT<\/b><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers have discovered Exostoma nasibarbatum, a new species of glyptosternine catfish in Manipur&#8217;s Bupal stream, part of the Chindwin river system near the Myanmar border. Adapted to fast-flowing, rocky waters, the fish has a flattened body, enlarged fins with adhesive structures and distinctive elongated nasal barbels. The discovery highlights the freshwater biodiversity of Northeast India.<\/p>\n","protected":false},"author":23,"featured_media":131652,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[11295,21,22,23],"class_list":["post-131616","post","type-post","status-publish","format-standard","has-post-thumbnail","category-upsc-prelims-current-affairs","tag-exostoma-nasibarbatum","tag-prelims-pointers","tag-upsc-current-affairs","tag-upsc-prelims-current-affairs","no-featured-image-padding"],"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/131616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=131616"}],"version-history":[{"count":5,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/131616\/revisions"}],"predecessor-version":[{"id":131694,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/131616\/revisions\/131694"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/131652"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=131616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=131616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=131616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}