Yano, K. & Stevens, J.D. & Compagno, L.J.V. (2004)
A review of the systematics of the sleeper shark genus Somniosus with redescriptions of Somniosus (Somniosus) antarcticus and Somniosus (Rhinoscymnus) longus (Squaliformes: Somniosidae). Ichthyological Research, 51(4), 360–373
DOI: 10.1007/s10228-004-0244-4

Compagno, L.J.V. (2005)
Checklist of living Chondrichthyes. In W.C. Hamlett (Ed.), Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3 (pp. 503–548). Science Publishers, Endfield, USA

Yano, K. & Stevens, J.D. & Compagno, L.J.V. (2007)
Distribution, reproduction and feeding of the Greenland shark, Somniosus (Somniosus) microcephalus, with notes on two other sleeper sharks, Somniosus (Somniosus) pacificus and Somniosus (Somniosus) antarcticus. Journal of Fish Biology, 70(2), 374–390
DOI: 10.1111/j.1095-8649.2007.01308.x

Nakabo, T. (2013)
Fishes of Japan with Pictorial Keys to the Species. Third Edition. Tokyo: Tokai University Press. 2428 pp.