Do you know ...

[ysi_maniac]

... what is this in circle?

[PR19_Kit]

Are they scabbed-on chaff or flare dispensers perhaps?

[Hobbes]

They look like intakes to me. Engine cooling ducts maybe?

[Mr.Creak]

Beat me to it. I was going to suggest engine bay cooling air intakes.

[NARSES2]

Must admit my first thought was chaff. If they are cooling ducts wouldn't they blend into the fuselage at the rear ?

[Radish]

Narses said:

"Must admit my first thought was chaff. If they are cooling ducts wouldn't they blend into the fuselage at the rear ?"

Well, dear, my cooling ducts do.

I thought chaff dispensers too....but cooling ducts might be scabbed on.

[NARSES2]

Narses said:

"Must admit my first thought was chaff. If they are cooling ducts wouldn't they blend into the fuselage at the rear ?"

Well, dear, my cooling ducts do.

I thought chaff dispensers too....but cooling ducts might be scabbed on.

I've noticed 

Never thought of scabbed on cooling ducts must admit

[Mossie]

Appear to be cooling ducts, the chaff and flare dispensors are immediately next to them.  This photo on Prime Portal shows them all well:
http://data.primeportal.net/hangar/luc_colin/amx/AMX%20015.JPG

And another from a differnt set of pictures with the access panels for the chaff and flare open and showing the rear of the duct:
http://data3.primeportal.net/hangar/luc_colin3/amx_ami/images/amx_ami_51_of_67.jpg

Both full walkarounds here:
http://www.primeportal.net/hangar/luc_colin/amx.htm
http://www.primeportal.net/hangar/luc_colin3/amx_ami/index.php?Page=1

[NARSES2]

Cheers Mossie 

[Go4fun]

Intakes for the Garrett Turbo-superchargers the pilot threw onto the engine for "That extra  'Wow!' factor!

[ysi_maniac]

Cheers Mossie 

Yeah, Mossie is an Encyclopedia

[Mossie]

Thank you guys!  Carlos, I'd like to think so, but I just have too much time on my hands at work and ready access to the internet! 

[Gondor]

They might be the air intake and exhausts for heat exchangers

Gondor