Taxonomic Controversy
It has been suggested that the genus cynops is due for a split, the Chinese species being placed in a separate genus from the Japanese ones. The species Cynops cyanurus is at the centre of all this. There is much debate about the validity of Cynops cyanurus and Cynops chenggongensis. All the known captive animals could be something different from cyanurus as they do not entirely match the original description of the species. The only known animals that match that are animals originating from Chemnitz Zoo but the problem is that they have not been able to get the F2 animals to breed well, which could suggest that they are in fact a hybrid of cyanurus and chenggongensis or an undescribed Cynops species. There have even been suggestions that the animals thought to be cyanurus in collections is in fact chennggongensis. They prefer water tempters below 75 degrees.
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