It's believed to be a
Cynops ensicauda popei. I say "believed to be" because there is a very slight chance of it being a cross-breed since it was among larvae removed from a tank that had both
C. ensicauda popei and
C. pyrrhogaster in it. Going by size (when it was a developing larva) and morphology, there's no chance of it being a
C. pyrrhogaster, at least in my opinion.
It's now being kept in a tank with
C. ensicauda ensicauda, not
C. ensicauda popei -- but for no particular reason
It feeds normally and doesn't appear to be at all intimidated by the larger newts. Still, I've been advised to keep it separately -- just to be on the safe side. Indeed I used to keep it separately, but I thought I'd give it a shot at breeding. What I perhaps should do is give it its own tank again, and simply introduce a single
C. ensicauda popei male (assuming as I do that it's a female).
Maybe I'll get around to it this weekend. Thanks for spurring me to action by reopening this thread