Upon reviewing this presentation the following comments were posted:

Marien Faber suggested:

"again extremely well done. Great photos! Perhaps these species have a different (holothurian) host?"

Peggy Williams observed:

"I have found both (M. jamaicensis and M. conoidea) by hand dredging in sand. They did not appear to be on a host."

Marlo agreed:

My experience has been the same as Peggy's. Many times live specimens of these species are in dredge takings with no apparent host material present.