Pictures of other species here
The female pearl gourami has none of the golden coloration on the throat
Males do have a golden throat.
Fishkeeping Facts and Tips
Well planted aquariums are not only great looking, they are also very beneficial to the fish. They oxygenate the water, absorb nitrates, reduce algae and provide refuge for fry (and other timid species). Plants like Java fern, hornwort, Amazon sword, Vallisneria (eel grass), Cryptocoryne and Anubias can all do well in a typical home aquarium with the smallest amount of attention
Have a look at some of these related sites