The pink one could be pseudomonas and the white one Staph. aureus or
epidermidis. It's hard to tell without more info.
In article <Mj%52.6662$DF6.198844 at tor-nn1.netcom.ca>, hluong68 at netcom.ca
>>I'm conducting an experiment on the type of bacteria on our skin. So far I
>have two type of bacteria identified and two's left. The colonies of one of
>the types are white, smooth and in a plateau margin. The other type is pink
>and has a drop-like margin.
>Any help that you can give is appreciated!