Interesting. I'm a 2010 noob and I've never even seen a Calamusoid. I'd like to know where that is!
There were calamusoids east? of Chugs Hideout when VU10 came. By time they have been replaced by maffoids.
Some year ago there also was a mutant event, when there was a (temporary) spawn of them nort of Fort Zeus, if I remember correctly.