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  • Title: [Validation and re-description of Sinocyclocheilus aluensis Li et Xiao, 2005 (Cypriniforms: Cyprinidae)].
    Author: Zhao YH, Zhang CG.
    Journal: Dongwuxue Yanjiu; 2013 Aug; 34(4):374-8. PubMed ID: 23913887.
    Abstract:
    Sinocyclocheilus aluensis was previously synonymized with S. angustiporus, but through the comparison of the specimens collected from Luxi County (type locality of S. aluensis) and type specimens of S. angustiporus, we identified several clear and stable characteristics to distinguish them. These findings suggest that S. aluensis should be considered as a valid species, as it can be distinguished from S. angustiporus by the position of the dorsal-fin insertion (posterior to vs. opposite to the pelvic-fin insertion), eye (22.4%-29.7% vs. 26.4%-38.9%, percentage of head length), eye-ball diameter (16.0%-23.6% vs. 21.3%-29.0%), and interorbital width (21.0%-32.3% vs. 19.7%-22.6%). 阿庐金线鲃(Sinocyclocheilus aluensis Li et Xiao, 2005)曾为狭孔金线鲃(S. angustiporus Zheng et Xie, 1985)的同物异名。该文在比对采自云南泸西县城郊龙潭的金线鲃标本和狭孔金线鲃模式标本后发现, 两者间存在明显且稳定的形态差异, 因此, 阿庐金线鲃应为有效种。阿庐金线鲃背鳍起点位于腹鳍起点垂直线之后, 可与狭孔金线鲃(背鳍起点与腹鳍起点正相对或稍前)相区别, 且前者眼径及眼球径较小, 而眼间距较宽(阿庐金线鲃分别为头长的22.4%~29.7%、16.0%~23.6%及21.0%~32.3%, 狭孔金线鲃分别为头长的26.4%~38.9%、21.3%~29.0%及19.7%~22.6%)。
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