关于白鳍豚的一些形态解剖资料

NOTES ON SOME MORPHOLOGICAL AND ANATOMICAL FEATURES OF THE WHITE-FLAG DOLPHIN,LIPOTES VEXILLIFER MILLER

  • 摘要: 白鳍豚是一种很稀有的动物,是鳍豚亚科现在生存的两个种之一,以前只是在我国的洞庭湖及其附近长江中有过记载。全国的自然博物馆收藏的标本并不多,而外国更其少数。最近先后有从长江中游的鄂城和洪湖赠送我所标本室四条白鳍豚的成体,其中有两条是怀孕的母豚,经解剖后又获得二条将近产期或发育晚期的胎豚。本文记载了这四条成体和二条胎豚的外部形态,并对被解剖过的三条成体的骨骼呼吸、消化和泄殖等器官进行了观察。在1918年白鳍豚在科学上最初记载之后,虽尚有一些继续发表的叙述,但对白鳍豚的知识仍然是很不够的,我们这个资料对此有了较多的补充。

     

    Abstract: Being one of the two existing species of the subfamily Iniinae,the white-flagdolphin,Lipotes vexillifer Miller is a rare animal and wvas originally recorded onlyin the Tung-Ting Lake and in the adjacent parts of the Yangtze River.Only a fewspecimens have been preserved in the museums of our country and still scantierabroad.Four adults of this dolphin,taken from the Yangtze River in the vicinity of O-cheng and Hung-hu,have recently been donated to the Institute.Two of them arepregnant females,and upon dissection two embryos of advanced stage have beenobtained.This paper deals with certain external characteristics of this species as well asthe results of observation on the skeleton and the respiratory,digestive and urogen-ital organs.It makes up a needful supplement to the various comments made byprevious authors since the first description of this dolphin in 1918.

     

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