Can anyone identify this specie/sex?

[Eel Noob]

I too think it look more like a male from those photos.

[ArchGrammarian]

Okay, I tried taking a few pictures of the frog's anterior, but he (I also suspect it's male) was acting rather cranky, so it was difficult to take the photos. I've posted the best two of the batch.

Also, I've read that croaking is an exclusively male behavior in ceratophryds. Is this correct? It might have been our imaginations, but, on two separate occasions, my roommate, suitemates and I thought we heard a lower-pitched croak.

Edit: By the by, some of the spots on the throat are actually clumps of the substrate in which he nestles. Again, because of his behavior, it was difficult to clean him off entirely.

[John]

I think it's a youngish male.

[ArchGrammarian]

Great! Thanks to everyone who responded-- I knew I'd be able to count on the lot of you