A taxonomic review ofXenotilapia sima andX. boulengeri (Cichlidae; Perciformes) from Lake Tanganyika
A taxonomic review ofXenotilapia sima andX. boulengeri (Cichlidae; Perciformes) from Lake Tanganyika
复制标题
Xenotilapia sima 和 X 的分类学综述。
作者：
Tetsumi Takahashi;K. Nakaya
坦噶尼喀湖的两种慈鱼，Xenotilapia sima Boulenger，1899和x.Boulengeri(Poll，1942)经常被混淆，因为关于每个种的诊断形态特征的信息不足。形态和形态计量学分析表明，X。SIMA与X不同。Boulengeri具有更多的牙齿和更多的肛鳍和胸鳍，较粗的尾柄，较大的眼睛，较短的口鼻和肛鳍底部。
Two cichlid fishes from Lake Tanganyika,Xenotilapia sima Boulenger, 1899 andX. boulengeri (Poll, 1942) are often confused owing to insufficient information on the diagnostic morphological characters for each species. Morphological and morphometric analyses showed thatX. sima differs fromX. boulengeri in having a greater number of teeth and anal and pectoral fin soft rays, thicker caudal peduncle, larger eyes, and a shorter snout and anal fin base.