@SwampDonkey No worries, I believe it's the long spur jelly (Leuckartiara longicalcar)
from an Instagram post I saw a while ago that showed them on display but it's hard to tell since the species list doesn't get updated that often on the MBA site. I'm going down next week so I'll check when i get there
@Northwest_FIsh_Keeping yea, the MBA website is kind of tough to tell what is actually out on display or in the collection and what is just informational. For example they have deep sea angler fish on the website, but not in the collection.