Forums: Spirulidae

I have a question, sorry if it sound dumb, but all the research I've done on the subject keeps on leading me in two seperate directions, my question is: On the top of Spirula's mantle, is there a suction cup, or a light organ? The fruits of my labor trying to find an answer turned up...

Hey all! I'm doing an amature (most amature . . . I'm a high school student) research project on Spirula spirula, but I have very few resources! I understand that Spirula is not a very well known species/genus, but it really fascinates me and I've been trying to get ahold of any info I can. I have...