LAST EDITED ON 12-22-12 AT 07:58 PM (EST)

While there is no exact match between Western astrological signs and Chinese, the Chinese signs are apparently assigned a lunar month and so I have found the following comparison.

"Since the Twelve Earth Branches or zodiac animal signs are also each assigned a month in a lunar calendar, then a Western zodiac sign can be matched with its Eastern counterpart.

Since that the Rat rules the month of December, thus we link him to the sanguine Sagittarius personality.

In January, we have the Ox that has solid Capricorn as his other self.

The Tiger in February has many similar traits with the Aquarius.

The Pisces and Rabbit cohabit the month of March just as the

Aries and Dragon are linked in April.

The Snake in May coincides with Taurus, and

Horse in June could well speak for the Gemini.

you will find the Sheep and Cancer having much more in common than just sharing the same month, July.

Monkey and the Leo take control of August.

In the month of September, we have Rooster and Virgo linked together.

The Dog will definitely strike a balance with his friend, Libra.

The deeply devoted signs of Scorpio and the Pig are grouped in the month of November."

http://www.squidoo.com/western-and-chinese-zodiac-signs-combined-astrology-and-horoscope

It would be a mistake to do a mental substitution using these match-ups, as the symbolism is not exactly the same, and the sun signs have their own symbolism. This is how it looks when you put the Western Sun Sign symbols side by side with the Lunar animals going in sequence.

Capricorn - Goat w/ Ox

Aquarius - Water-bearer Androgyne w/ Tiger

Pisces - Fish w/ Rabiit

Aries - Ram w/ Dragon

Taurus - Bull w/ Snake

Gemini - Twins w/Horse

Cancer - Crab w/ Sheep

Leo - Lion w/ Monkey

Virgo - Virgin w/ Rooster

Libra - Scales w/ Dog

Scorpio - Scorpion w/Pig

Sagittarius - Centaur w/Rat

Another astrologer compares the signs and doesn't assign them purely going in order, and I agree with these correlations much more than the above.
Same as above with these five shuffled.

Taurus -- Pig
Gemini -- Monkey
Leo -- Rat
Scorpio -- Snake
Sagittarius -- Horse

http://en.astralfeeling.com/L3.double-zodiac_connections.php