Distribution and habitat


Proisocrinus ruberrimus occurs in a deep ocean setting. It lives in the tropical waters of the western Pacific Ocean but has been seen vary rarely.

It has been observed close to:

  • the Philippines
  • Tahiti
  • Hawaii
  • New Caledonia
  • Okinawa (Japan)


P. ruberrimus 

  • is restricted to rocky substrates within a deep sea setting
  • has been observed and sampled from depths between 1,663m-1,804m

Conservation and threats

Proisocrinus ruberrimus is only encountered during scientific sampling expeditions. But, although rarely seen, there is no immediate threat to these animals and the species is not protected. Deep sea trawling could become an issue in the future.