What does a pet drop look like?

[Phantomas]

Kuero is correct, looks like a glowing blue sparkled rat.

Albino Bats still drop, drops on Morhaven District , missions 1 and 3.
And found albino bats recently (sept 1st 2013), btw bats dropped after i destroyed a cardboard box.
So also destroy the destructables that usually gives u money or a low level gem if u wanna find bats.
Btw bats are very difficult to find. Farming for 15 months now (almost every day) and in that period found bats twice.
(Sorry dont wanna discourage u)