Jones, C.J.P. & Walker, T.I. & Bell, J.D. & Reardon, M.B. & Ambrosio, C.E. & Almeida, A. & Hamlett, W.C. (2005)
Male Genital Ducts and Copulatory Appendages in Chondrichthyans. In: Hamlett, W.C.(ed.) Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3. Endfield, USA: Science Publishers: 361–393