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缅甸陆龟的雌雄鉴别方法

作者:尘风发布:2021-01-08 22:00:01阅读:1,516次

缅甸陆龟头部呈淡黄色,顶部有排列对称的大鳞,吻钝,上喙略勾曲,鼻孔处为粉红或淡黄色。背甲高隆,前后缘不呈锯齿状。每块盾片中央有大黑斑块,同心纹明显,头部浅绿黄色。腹甲前缘较厚,后部缺刻较深。四肢粗壮,扁圆形到圆柱形,有爪无蹼,适于陆地行走。表面有大块鳞片,呈灰褐色。

缅甸陆龟体重500克左右可鉴别性别。雌性龟的腹甲中央平坦,无凹陷,尾短,泄殖腔孔距腹甲后部边缘较近;而大多数雄性龟的腹甲中央凹陷(500克时的雄龟未发育完全,腹甲大多不凹陷),年龄大的龟腹甲凹陷的程度越大,尾长且粗壮,泄殖腔孔距腹甲后部边缘较远。在繁殖季节,雌、雄龟的眼、鼻周围的壳趋向粉红色,爪呈灰色。

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