I've been finding these bugs in the house for a couple weeks now, and I finally figured out last night where they came from.  I'm no bug/insect expert by any means, but I believe these are regular garden centipedes.  

I had bought my girlfriend a Snake plant for the house in February and apparently they were in the soil.  I found dozens of them crawling on it last night, including many babies.  I'm sure there's hundreds of them in there.  Most of the ones I'm finding have been dead - probably 3:1.  And they've all been within a 15-ft radius of the plant.  The plant is now sitting outside on the back porch.


Questions:

1)  What exactly is this bug?  Am I correct in identifying it as a garden centipede?

2)  Should I bother with calling an exterminator, or can I count on them to quickly and naturally die off in my house?

3)  Who would win in a fight between a centipede and a carpenter ant?  I have lots of ants on the property and wouldn't mind thinning them out by introducing a new species.  :D  J/K

Looks more like millipede to me?

South African Ear Burrower.  They come out at night to lay their eggs.  

Stay safe, OP.  

Diatamacius earth.

Or something to that spelling.

Sprinkel it around and all them bugs die from the stuff. It is pet safe.
It is made from deceased plankton or something that has the shells broken down into small particles that peirce the shell and joints of bugs. They decimate small bugs nicely due to it desiccating the critters.
Also works with indoor plantings and you can eat it along with your pets and no harm coms to you or it. Get a bag of is and spread liberally all over where you have an issue.

Its like spreading around chalk dust.

Be careful not to inhale any dust from the diatomaceous earth, though.