[Brian]

Marian,
From what I have seen of your blue/green garters. I would say your blue ones look more like ordinoides and your green one looks more typical of sirtalis.
I'm basing this on the head and the look of the stripes and the color.
I've never seen bright blue pudget sound garters only turqoise green or some other shade of green.

So the problem may be that you are still in need of a ordinoides boy and a pudget girl if you hope to breed them. If you could provide full body shots from above of all three and head shots from the side of all three that would be the best way to tell for sure. I saw the head shot from the side of one girl in another thread and it definately has the blunt head that would make me say
oridinoides. Its hard to tell with out seeing the body in relation to the head though.

My theory is that "bob", knows of a local densite near his house in Washington where both ordinoides and sirtlais hibernate and he plucks several out of it each year to sell. They do hibernate and live togeather but hybrids are unknown to my knowledge. NW's are thought to be slug and worm specialists which also prey on small salamanders, frogs, and fish. Whereas sirtalis in that area will likely eat anything they can take down. It would be interesting if you were to note any differences in the willingness of your green male (probable sirtalis) to take mice vs. your blue females to take mice. If you have them togeather think about seperating the male from the females and giving mice a full go with him. Also, despite the natural size differences in male and female sirtalis, your male sirtalis will likely outgrow your female ordinoides which would be another clue.

If you really want to find out what they are, You could do the newt test. If they can eat a toxic red newt from the NW and survive then they are sirtalis if they die they are ordinoides. Of course I'm kidding but that would be a sure way to tell.

Cazador,
I agree with all of the things you posted regarding these two species except for the width of the dorsal stripe. As I explained above that is quite variable in ordinoides. Thanks for providing the sources of your information.

Don,
That's a very cool looking northwestern you found a pic of.
So many garters so little time and space.
Too bad I have too many garters already.