The first definitely looks like a peninsula cooter. Mine looked almost exactly like that about 6 years ago. I think the second is a cooter, but I'm not sure on exactly what kind. I'm not as up on my turtles as I used to be. I started mine in a 29 gallon for the first couple years and then moved him in and my yellow belly slider into a 55. I'm hoping to get a big stock tank or something for them pretty soon though. Luckily I ended up with a male cooter, so he'll probably be 10-12", and not like 13-15" like a female.