Belgian Malinois
The Belgian Malinois (pronounced MAL-in-wah) is one of the varieties of the Belgian Shepherd Dog.  In the United States, they are registered by the American Kennel Club as a separate breed.

The Belgian Malinois is a medium size dog of exceptional beauty and working ability used for many purposes, including herding, tracking, agility, obedience, and police work.  To the inexperienced eye, they may seem to resemble the German Shepherd Dog, but upon closer inspection, many differences may be seen including size, bone structure, color, and head and ear shape.  The Belgian is generally a lighter, quicker, more agile dog.  They are also generally a more "high energy" dog.

The text above was taken directly from the American Belgian Malinois Club Homepage.
For more Information about the Belgian Malinois I highly suggest their site or the the American Kennel Club.
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