1. Roule, L., Bull. Inst. Océanogr. Monaco, No. 261 (1913).
2. Bruun, A. F., “Animal Life of the Deep-Sea Bottom”, in The Galathea, Deep-Sea Expedition 1950–52 (London, 1956).
3. Andriashev, A. P., Trudy Inst. Okean., 12(1955).
4. Rass, T. S., Priroda, 47, 7 (1958).
5. Rass, T. S., Fifteenth Internat. Congr. Zool.(1959).