Wikipedia should not be using that drawing for a Chondrocladia concrescens, it also on the main C. concrescens page - https://en.wikipedia.org/wiki/Chondrocladia_concrescens

Everyone knows when you bring deep sea creators to the surface they look different.

It's far more obvious from pictures taken in place - https://twitter.com/DrCraigMc/status/1366534723145781251/pho... https://www.flickr.com/photos/oceanaeurope/15285657515

It's a shame they didn't see a Chondrocladia lyra in the original expedition, much better for lore, but I guess being pre-internet savages the lyra wouldn't even look like an antenna to them - https://www.youtube.com/watch?v=VC3tAtXdaik