TRUE HERMAPHRODITISM IN A ST-LAWRENCE BELUGA WHALE (DELPHINAPTERUS-LEUCAS)

被引:34
作者
DEGUISE, S [1 ]
LAGACE, ZA [1 ]
BELAND, P [1 ]
机构
[1] ST LAWRENCE NATL INST ECOTOXICOL,MONTREAL H2L 3M6,PQ,CANADA
关键词
TRUE HERMAPHRODITE; BELUGA WHALE; DELPHINAPTERUS LEUCAS;
D O I
10.7589/0090-3558-30.2.287
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
A hermaphrodite beluga whale (Delphinapterus leucas) was found in the St. Lawrence Estuary, Quebec, Canada. This animal had two testicles, two separate ovaries, and the complete ducts of each sex; cervix, vagina and vulva were absent. Mature spermatozoa were found in the lumen of seminiferous tubules in the testicles, and numerous involuted corpora lutea were recognized in the ovaries. This represents the first case of true hermaphroditism in a cetacean, and is the fourth hermaphrodite mammal with two testicles and two separate ovaries.
引用
收藏
页码:287 / 290
页数:4
相关论文
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