Material Examined:
20 individual examined. Porcupine Abyssal Plain (Challenger 79, May 1991 4 individuals; Challenger 111, April 1994 1 individual; Discovery 222, September 1996 6 individuals; Discovery 226, March 1997 5 individuals and Discovery 229, July 1997 4 individuals).
Voucher: Cruise/Expedition: