Another one that perhaps resemble the most with the Singa in the Keris under discussion except without wings.

When I wrote my post#5 I could not remember the name of this protector of children. I spent a lot of time looking for him, and I couldn't find him anywhere.

Today I was thinking of two doors I'm having made & how I could schedule the painting of them, in the middle of this intensely interesting train of thought about work I don't like very much, the word "Kumara" popped into my mind, and then "Rare" followed.

The name of that Balinese god of children is Rare Kumara.

I searched that name and here is a link to a thread that is perhaps useful:-

http://www.vikingsword.com/vb/showthread.php?p=272573

peculiar the way the human mind works.

Jean, winged singo seem to be rather common in Bali. Here is a 19th century example that features fangs, bulging eyes hair, no clear indication of a penis and not an animal, but a human infant underneath its legs.
I think your expectations of a singo might be more based upon the Javanese model.

Here are a few more Balinese singo interpretations, including two on keris blades. I don't really see any "standard" in any of these Bali examples.

Yes David, you are correct.