Rogacheva, A., I. A. Cross, and D. S. M. Billett. “Psychropotid Holothurians (Echinodermata: Holothuroidea: Elasipodida) Collected at Abyssal Depths from Around the Crozet Plateau in the Southern Indian Ocean”. Zootaxa, vol. 2096, no. 1, May 2009, pp. 460–478, doi:10.11646/zootaxa.2096.1.28.