Hapalopoda investigator, A. Milne Edwards. Crustace voisin des Penees, vivant a 1900 metres de profonduer et ayant ses deux dernieres paires de pattes transformees en organes de tact
based on rostrum and frilliness of legs, I think it's Aristaeopsis (formerly Plesiopenaeus). It certainly looks exactly like one that I saw from the sub in the Bahamas