Well anyway, if the puffer in the second pic actually has orange/yellow coloring, it could possibly be
X. naritus, which is differentiated from the
Auriglobus genera by its yellow belly, rather then white. According to Dr.Ebert's book anyway, which I have studied thouroughly
Also, you can count the fin rays:
X. naritus: Dorsal fin rays: 35-36. Anal fin rays: 28-29
Auriglobus species: Dorsal fin rays: 22-28. Anal fin rays: 18-22
The above information is from Dr.Ebert's book as well.
Otherwise, I would say
A. silus.
I agree with PP, the third picture is
A. modestus.
Although honestly, the
Auriglobus species are pretty hard to tell apart. In the Dr. Ebert's book, he lists the average number of fin rays for each genera, which is very helpfull.