The first one is a white lab I have quite a few of them. I have noticed that the less dominate ones tend to have grey lines where as the dominate ones are a beautiful white. I have been told to be careful because like yellow labs they will breed with other species. These labs are also not hybrids they are found in the wild but not abundantly. You have to be careful when buy these from fish stores cause often times they are the offspring of yellow and white labs and once a good size look like yellow snow. Mine are very aggressive also so keep an eye on it.