Sumpter, J.P. & Denning-Kendall, P.A. & Lowry, P.J. (1984)
The involvement of melanotrophins in physiological colour change in the dogfish Scyliorhinus canicula. General and Comparative Endocrinology, 56(3), 360–367
DOI: 10.1016/0016-6480(84)90078-9
Denning-Kendall, P.A. & Sumpter, J.P. & Lowry, P.J. (1982)
Peptides derived from pro-opiocortin in the pituitary gland of the dogfish, Squalus acanthias. Journal of Endocrinology, 93(3), 381–390
DOI: 10.1677/joe.0.0930381