Abstract

The present study aims to determine the otolith and scale morphology of Cyprinion macrostomum in the Tigris–Euphrates Basin. A total of 50 specimens are evaluated, and total length and body weight values of samples are ranged 6.7–10.4 cm, and 2.7–10.9 g, respectively. The asteriscus and lapillus pairs are examined, and also the scales from the six body regions of juvenile and adult C. macrostomum samples are investigated. The otolith characters such as shape, size, proximal and distal surfaces, antirostrum and rostrum types and the scale morphological characters such as type, size, shape, focus position, circuli appearance, radii type, and rostral and caudal margin shapes are the distinguishable characters for the C. macrostomum samples. Whereas asteriscus pairs shape is discoidal, lapillus pairs shape is kidney-shaped for C. macrostomum samples. When the scales in six different body regions of C. macrostomum are compared, there are differences between the scale shapes obtained from six different regions.

中文翻译：

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底格里斯—埃弗拉茨盆地特有鱼类鲤鱼的耳石和鳞片形态

摘要

本研究的目的是确定底格里斯–埃弗拉特盆地中大鲤鱼的耳石和鳞片形态。总共评估了50个样本，样本的总长度和体重值分别为6.7-10.4厘米和2.7-10.9克。的asteriscus和峨螺对被检查，并且还从幼年和成年的六个本体区鳞C. macrostomum样品进行了研究。耳石的特征，例如形状，大小，近端和远端表面，抗rostrum和讲台类型，以及鳞片形态特征，例如类型，大小，形状，焦点位置，马蹄形外观，半径类型以及鼻尖和尾缘形状是可以区分的字符对于C. macrostomum样品。而asteriscus对形状为盘状，峨螺对形状是肾形的为C. macrostomum样品。当在六种不同身体区域的尺度C. macrostomum进行比较时，有来自六个不同的区域中获得的刻度形状之间的差异。