| 中国鲉形目棘鲬属一新纪录种——丝鳍棘鲬 |
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| 引用本文： | 阎珂鸣,林坤,陈春亮,侯刚,王学锋.中国鲉形目棘鲬属一新纪录种——丝鳍棘鲬[J].广东海洋大学学报,2021(1). |
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| 作者姓名： | 阎珂鸣 林坤 陈春亮 侯刚 王学锋 |
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| 作者单位： | 广东海洋大学水产学院;南方海洋科学与工程广东省实验室（湛江）广东;广东海洋大学海洋资源与环境监测中心 |
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| 基金项目： | 南方海洋科学与工程广东省实验室(湛江)资助项目(ZJW-2019-06);公益性行业(农业)科研专项(201403008)。 |
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| 摘 要： | 【目的】记述中国南海海域棘鲬属的一新纪录种,以厘定中国南海海域棘鲬属的分类。【方法】2019年4月于中国南海北部海域海南岛东南渔场采集棘鲬属样品,采用形态学鉴定方法研究其形态特征,描述其生态习性,编制中国棘鲬属分种检索表。【结果与结论】样品中有6尾为中国新纪录种——丝鳍棘鲬Hoplichthys filamentosus Matsubara&Ochiai,1950。主要特征:体延长,平扁,向后渐狭小,背缘低平,腹缘平直;背鳍VI,14~15;臀鳍17;胸鳍13+ⅲ;腹鳍Ⅰ-5;尾鳍17;侧线骨板27;鳃耙2+11~12;体具几条不明显深色横带;胸鳍具黑色斑点;第1背鳍分布黄色斑点,具黑色小点和黑边;第2背鳍中部分布黄色圆斑,每1鳍条根部具黄色圆斑;腹鳍白色,无斑纹;臀鳍无明显斑纹;尾鳍后缘具黑边,中部较随机分布黄色圆斑,下叶颜色较深。该种雌雄异形:1)雄性下颌骨腹外侧具棘,雌性则隐没皮下;2)雄性第2背鳍鳍条均显著延长呈丝状,雌性则无显著延长。
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| 关 键 词： | 丝鳍棘鲬 棘鲬科 新纪录 南海 |
Hoplichthys filamentosus,a New Record of Ghost Flathead from the South China Sea |
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| YAN Ke-ming,LIN Kun,CHEN Chun-liang,HOU Gang,WANG Xue-feng.Hoplichthys filamentosus,a New Record of Ghost Flathead from the South China Sea[J].Journal of Zhanjiang Ocean University,2021(1). |
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| Authors: | YAN Ke-ming LIN Kun CHEN Chun-liang HOU Gang WANG Xue-feng |
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| Institution: | (College of Fisheries,Guangdong Ocean University,Zhanjiang 524088,China;Southern Marine Science and Engineering Guangdong Laboratory,Zhanjiang 524025,China;Monitoring Centre for Ocean Resources and Environments,Guangdong Ocean University,Zhanjiang 524088,China) |
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| Abstract: | 【Objective】To describe a new record of Hoplichthys in the South China Sea,and determine the classification of Hoplichthys genus for the systematic research on the biodiversity of China’s marine fishes.【Method】Morphological identification was conducted on ghost flathead samples,which were collected from the Southeast fishing grounds of Hainan Island in the northern South China Sea in April 2019.And it was elaborated scientifically for the morphological characteristics,ecologically importance of the Holichthys filamentosus.Also the dichotomous keys of Holichthys genus were compiled to fulfill the fish species list in China.【Result】Six samples were identified as Hoplichthys filamentosus Matsubara&Ochiai,1950.The specimens which represented a new record of Hoplichthys genus in the South China Sea were identified with the common morphological traits as follows:the elongated and flat-shape body with tetrahedral surface slightly narrows backward;its dorsal margin is low,but the abdominal margin is flat;its first dorsal fin has six hard spines and the second has 14 or 15 soft rays;the anal fin has 17 rays;the pectoral fin has 13 rays and three soft rays;the ventral fin has one spines and five rays;and the caudal fin has 17 rays.The number of lateral scutes is 27;the number of gill rakers in the gill arch is two in the upper part and 11 to 12 in the lower part.The body has several unconspicuous dark horizontal bands and the first dorsal fin has several yellow spots with black-edges and black dots;the pectoral fin also has black spots;the yellow round spots are distributed in the middle of the second dorsal fin and the root of each fin.The ventral fin is white and has no markings;there is no obvious markings on the anal fin;the posterior margin of the caudal fin has a black margin and darker color in the lower part,and the middle of caudal fin is randomly distributed some yellow round spots.Additionally,two significant differences between the morphology of the male and female Hoplichthys filamentosus:(1)The spines on the ventrolateral side of the mandible are visible in male individuals,while they are hided in subcutaneous tissues;(2)the second dorsal fin of the male individuals is obviously thread-like lengthened,while the female is not. |
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| Keywords: | Hoplichthys filamentosus Hoplichthyidae new record South China Sea |
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