Silva-Oliveira CÁrlison, Lima FlÁvio C T, BogotÁ-Gregory Juan D
Instituto Nacional de Pesquisas da Amazônia, Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Coleção de Peixes. Av. André Araújo, 2936, Caixa Postal 2223, 69060-001 Manaus, Amazonas, Brazil..
Zootaxa. 2018 Nov 8;4514(3):372-382. doi: 10.11646/zootaxa.4514.3.4.
A new species of Bryconops is described from the rio Maicuru, a tributary of the left margin of the lower Amazon River, Pará, Brazil. Bryconops chernoffi new species, differs from all its congeners by the presence of an elongated dark patch of pigmentation immediately after the posterodorsal margin of the opercle, running vertically from the supracleithrum to the distal margin of the cleithrum (vs. absence of a similar blotch), and by a dark dorsal fin with a narrow hyaline band at middle portion of dorsal-fin rays (vs. dorsal fin hyaline or with few scattered chromatophores). It differs further from all its congeners, except B. colanegra, by the presence of a blurred black stripe at the anal fin base. It differs from B. colanegra by possessing fewer predorsal scales (8-9 vs. 10-11) and in that the third infraorbital contacts the preopercle ventrally (vs. third infraorbital not contacting preopercle ventrally). The new species is assigned to the subgenus Creatochanes by the number of maxillary teeth, and ossification and denticulation of the gill rakers.
一种新的魮脂鲤属鱼类被描述于巴西帕拉州下亚马逊河左岸支流麦库鲁河。切尔诺夫魮脂鲤新物种，与所有同属物种不同之处在于，在鳃盖后缘后方紧挨着有一块细长的深色色素沉着斑，从匙骨垂直延伸至匙骨远端边缘（相比之下没有类似斑点），并且背鳍深色，在背鳍鳍条中部有一条狭窄的透明带（相比之下背鳍透明或有少量分散的色素细胞）。它与所有同属物种（除了科拉内格拉魮脂鲤）的进一步区别在于，臀鳍基部有一条模糊的黑色条纹。它与科拉内格拉魮脂鲤的区别在于，其背前鳞较少（8 - 9枚对10 - 11枚），并且第三眶下骨在腹侧与前鳃盖骨接触（相比之下第三眶下骨在腹侧不与前鳃盖骨接触）。根据上颌齿数量以及鳃耙的骨化和细齿情况，该新物种被归入克里阿托查内斯亚属。
