how do I locate all the pictures on an Android phone?

[Gary Dale <garydale@torfree.net>]

I'm running Jessie on an AMD64 system.

Last night I took some pictures and tried my usual method of downloading 
- I plugged in the phone through USB and selecting File Manager when the 
notification window popped up. Navigating to 
/store_00010001/DCIM/Camera, I found a lot of pictures but not the ones 
from last night.

Tried again with Dolphin and got the same results.

I can see the photos on my phone when I review them, along with a lot of 
others that I don't see in the file manager. Makes me wonder if I'm 
missing other pictures from earlier too.

Any ideas on what's going on?