Gary, the majority of them are gluttonous feeders. They will eat until they can't eat any more, close up, then they will be back at it again. There are times the fill their guts so far they will be on the brink of exploding...that is after some serious feeding of course. The center of the crinoid will look like a small Hersey kiss when the gut is completely full. If the center of the crinoid pops, you will see a white plate structure (the aboral cup, any biologists step in if described the area incorrectly or identified it incorrectly). What is interesting the crinoid will live for a period of time if the gut pops but I have not read of this area regenerating. I actually have one crinoid in my possession now that this happened to and trying to observe if some how it will regenerate or not. It has been 39 days since this happened. When this has happened in the past, I would euthanize the crinoid. Normally a stressed/starved crinoid with drop arms and completely falls apart and dies, in this case when the gut pops, arms and cirri stay in tacked, the tips of the arms drop, crinoid functions normally like nothing happened. Now with the food having no where to go, it is either going to starve itself, find some alternate way to intake food, or use energy from other parts of the crinoid to regenerate itself if it can not intake food.
Mike
Sent from my SCH-I500 using Tapatalk