{"id":13616,"date":"2025-05-21T10:15:56","date_gmt":"2025-05-21T03:15:56","guid":{"rendered":"https:\/\/phakhaolao.la\/?post_type=resource&#038;p=13616"},"modified":"2025-05-21T10:16:18","modified_gmt":"2025-05-21T03:16:18","slug":"a-new-species-of-metzia-cypriniformes-cyprinidae-from-northern-laos-2","status":"publish","type":"resource","link":"https:\/\/phakhaolao.la\/en\/resource\/a-new-species-of-metzia-cypriniformes-cyprinidae-from-northern-laos-2\/","title":{"rendered":"A new species of Metzia (Cypriniformes: Cyprinidae) from Northern Laos"},"content":{"rendered":"<p>A new cyprinid fish, Metzia bounthobi, is described on the basis of 18 specimens (including 10 specimens in type series) from the Mekong River basin in Phongsaly and Luang Prabang Provinces, northern Laos. The species is distinguished from congeners by having the following diagnostic traits: 18\u201320 branched anal-fin rays (vs. 10\u201318 in the others); 49\u201355 lateral-line scale rows (vs. 35\u201348); 33\u201336 predorsal scale rows (vs. 15\u201320); 20\u201322 circumpeduncular scale rows (vs. 14\u201318); 8\u201310 gill rakers on outer surface of first gill arch (vs. 12\u201318). The new species also resembles species of Hemiculterella, Ischikauia and at least some species of Anabarilius, in sharing a sharp keel developed only between the base of the pelvic fin and anus, soft last unbranched dorsal-fin ray, and air bladder composed of two chambers; however, M. bounthobi differs in having a considerably rounded snout (vs. pointed in Hemiculterella, Ischikauia and Anabarilius), 18\u201320 branched anal-fin rays (vs. 8\u201317 in Hemiculterella, Ischiakuia and Anabarilius), 49\u201355 lateral-line scale rows (vs. more than 58 in Ischikauia and Anabarilius, except for A. transmontana with 54\u201357), air bladder with rounded posterior end (vs. posterior end with a small lobe at least in Hemiculterella) and 39\u201340 vertebrae (vs. 40\u201343, 42\u201343 and 43\u201348 in Hemiculterella, Ischikauia and Anabarilius, respectively).<\/p>\n","protected":false},"template":"","meta":{"_acf_changed":false},"access-right":[],"featured":[100],"language":[152],"province":[187,192,193,194,188,184],"resource-type":[144],"topic":[159,163],"class_list":["post-13616","resource","type-resource","status-publish","hentry","featured-yes","language-english","province-bokeo","province-houaphan","province-luang-namtha","province-luang-prabang","province-phongsaly","province-xiangkhouang","resource-type-research-article","topic-capacity-building-and-agricultural-education-for-sustainability","topic-traditional-ecological-knowledge-and-practices"],"acf":[],"_links":{"self":[{"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/resource\/13616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/resource"}],"about":[{"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/types\/resource"}],"wp:attachment":[{"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/media?parent=13616"}],"wp:term":[{"taxonomy":"access-right","embeddable":true,"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/access-right?post=13616"},{"taxonomy":"featured","embeddable":true,"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/featured?post=13616"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/language?post=13616"},{"taxonomy":"province","embeddable":true,"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/province?post=13616"},{"taxonomy":"resource-type","embeddable":true,"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/resource-type?post=13616"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/phakhaolao.la\/en\/wp-json\/wp\/v2\/topic?post=13616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}