EAST BUCKLAND, England -- A miniature canine may end up as the world's smallest dog.

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TINY TIM IMAGES: See Tiny Tim

Tiny Tim, is only 10 weeks old so he's still a puppy, but his owner Mandy Marks said he has not grown since he was 4 weeks old.

That means that at four inches tall at the shoulder, he is the smallest dog on record -- a title currently held by a Yorkshire terrier named Whitney, who's a whole half-inch taller.

Tiny Tim does not really make up for his lack of height in other ways. He is only four inches from nose to tail and weighs just over a pound.

His size means that Marks has to be careful with him when guests are around, while she herself has been forced to change how she walks at home.

"I tend to slide my feet across the floor, so if I did step on him, I'd only push him to the side," Marks said.

Marks is used to small dogs. Tiny Tim's mother, a Chihuahua, named Sparkles, and his father, a Shih Tzu, named Patch, are no giants either, but Tiny Tim is by far the smallest she has raised.

And if she is right and he does stop growing, Tiny Tim could be a big sensation among fans of the miniature. All she has to fear is a late growth spurt.