Mark Seifter wrote:Yeah, it looks like the problem is that sea-dwelling mammals like dolphins and whales lack the aquatic subtype since they technically just hold their breath a long time (except a few that erroneously do have it). They are fundamentally aquatic (in the English term rather than the subtype) creatures, and like Adam says, should be fine with it as well. The point is that terrestrial creatures like an elephant or a catfolk wouldn't benefit.Hopefully we can get this clarification in the Campaign Clarifications for PFS, so GM's don't have to fight with players over whether a dolphin gets a penalty underwater or not.
Maybe this could be a revision of the Hold Breath special quality. I am not certain, but suspect all of the aquatic animals that do not have the aquatic subtype have this special quality. Perhaps creatures like boggards and lizardfolk are edge cases, but I cannot think of any monsters off hand with the SQ that absolutely shouldn't be skilled under water. EDIT: Actually, looking through it looks like the cockroaches have the Hold Breath SQ. I honestly don't know how well they are supposed to be underwater.