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Studied species: (a) Aetomylaeus bovinus; (b) Myliobatis aquila; (c) Dipturus nidarosiensis; (d) Leucoraja circularis; (e) Tetronarce nobiliana; (f) Hexanchus griseus; (g) Heptranchias perlo; (h) Centrophorus uyato; (i) Dalatias licha; (j) Oxynotus centrina; (k) Chimaera monstrosa. Scale bars = 10 cm.
