mtp devices

[jd1008]

When I connect my phone via usb, gnome (or more exactly, mate)
pops up a window which displays 2 icons named:
internal storage
sd card

however, mount command does not show them mounted.

I want to browse them via the terminal cli interface.

How do I force mate or gnome to mount them the traditional way?

When I click on internal storage icon, the pathname in the gui is 
displayed as
mtp://[usb:002,005]/Internal%20storage
and sd card is displayed as
mtp://[usb:002,005]/SD%20Card

Thanx for any info on how to achieve what I want to do.