>>
>>This is what I've been told as I have not found information on it as of yet. (Though I plan on buying a nice big book on crocodilians soon...once I have $150 for it)
>>They only exist in males and may be used for marking territory with scent.
>>

I'd love to get some clarification as well. I've read that all crocodilians of both sexes posses these musk glands. The males evert them during mating and rub them across the female's snout. I know my young alligator likes to evert his/hers during a hissy fit.