Studies on the cranial osteology of the blind catfish Horoglanis krishnai Menon (Pisces, Clariidae).
作者: Mercy T.V. AnnaPillai N. Krishna
刊名: International Journal of Speleology, 2001, Vol.30 (1-4), pp.1
来源数据库: Directory of Open Access Journals
关键词: Horaglanis krishnaicave fishesosteology
原始语种摘要: Horaglanis krishnai Menon is a blind catfish inhabiting the dug- out wells at Kottayam, Kerala, South India. Studies on the cranial osteology of the fish show that the bones on the skull are firmly articulated. The frontoparietal fontanella is very large so that the cranium virtually lacks a roof. The sphenotics and alisphenoids are hardly recognizable and the orbital bones are entirely lacking. In osteological features H. krishnai closely resembles Uegitglanis zammaroni. But in H. krishnai the orbital bones are further reduced or even absent. The fontanella is larger than that of any other known catfish. These two species must have evolved from the same ancester and have taken up nearly identical ways of life. The difference between the skeletons of these two appears to be largely...
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  • osteology 骨学
  • Pisces 双鱼座
  • catfish 鲇鱼
  • cranial 前面的
  • absent 不在的
  • blind 暗的
  • frontoparietal 额顶的
  • connecting 联运的
  • largely 大量
  • distinct 相异的