Filimanus perplexa is among fish species with high economic value. It has a flattened body shape and yellowish body color. Another characteristic of F. perplexa is seven free filaments on the pectoral fin whose exceeds the anal fin. These species do not show sexual dimorphisms. Therefore, a taxonomic study is needed to distinguish male and female individuals of Kurau fish. Differences between male and female fish can be seen in their morphological performance, truss morphometrics, and meristic characters. The purpose of this study was to know morphological characters that can be used to differentiate between male and female individuals of Splendid threadfin fish. The method used in this research surveys. Samples were taken by purposive random sampling technique. Samples of Kurau fish were obtained from PPI Tanjungsari Pemalang. The variables observed were the morphological performance, truss morphometrics distances, and meristic characters. Morphological data were analyzed descriptively. The truss morphometrics character was statistically analyzed using a t-test on SPSS Version 16.0 program. Furthermore, meristic characters were analyzed descriptively. The results showed that male and female individuals of Kurau fish could be differentiated based on truss distance, where males individuals have larger body sizes and are relatively longer than females. Morphological performance and meristic characteristics cannot be the difference between male and female Kurau fish.

Filimanus perplexa是具有很高经济价值的鱼类之一。它具有扁平的体形和淡黄色的体色。F. perplexa的另一个特征是超过臀鳍的胸鳍上有七根游离的细丝。这些物种不表现出两性异形。因此，需要进行分类学研究来区分库劳鱼的雄性和雌性个体。雄性和雌性鱼之间的差异可以在它们的形态表现、桁架形态测量和分生特征上看到。本研究的目的是了解可用于区分金鲳鱼雄性和雌性个体的形态特征。本研究调查中使用的方法。通过有目的的随机抽样技术采集样本。Kurau 鱼的样品来自 PPI Tanjungsari Pemalang。观察到的变量是形态性能、桁架形态测量距离和分生特征。形态学数据进行了描述性分析。使用 SPSS 16.0 版程序的 t 检验对桁架形态特征进行统计分析。此外，对特征特征进行了描述性分析。结果表明，库劳鱼的雄性和雌性个体可以根据桁架距离进行区分，其中雄性个体的体型较大，并且比雌性个体相对较长。形态表现和分生特征不能成为雄性和雌性库劳鱼的区别。