Bekhorot 39: Gums, Teeth, and Tails

3 mishnayot! Rabbi Hanina bar Antignos on various blemish, specifically the pale spots that constitute a blemish. Note the requirement of an even amount of time between checking the blemish. Also, determining the timing of the impurity of a blemish. Plus, a list of possible, fairly minor blemishes -- including on the outer part of the lip. 2 - On the gums and whether the external gums are significant for the blemishes, with the new ones hidden away, as it were. Note - the phenomenon of the double teeth. 3 - Misshapen genitals, and also when it comes to already consecrated animals, not just the first-borns. Also, the potential of blemishes in an animal's tail.