HOLMGREN, N. (1941)
Studies on the head in fishes. Embryological, morphological, and phylogenetical researches. Part II. Comparative anatomy of the adult selachian skull, with remarks on the dorsal fins in sharks. Acta Zoologica (Stockholm), 22 (1–3): 1–100, figs 1–74
DOI: 10.1111/j.1463-6395.1941.tb00340.x
MASAI, H. (1963)
On the Central Nervous System of Notorhynchus platycephalus. Japanese Journal of Ichthyology, 10 (1–2): 27–30