| | Re: long hair/mane
When it comes to describing and defining things effectively in English, a good reference is always a learner's dictionary using only English.
susan53's definition is a good example. Male lions have long hair makes me think that their fur is longer, or that female lions could have a mane, but it would be shorter. You need to include information about where that hair is. A male lion has long hair on its neck would be an acceptable description for me.