Dear all, I have no access at this time to a reference collection with cartilaginous fish and I'm having trouble identifying these specimens. I know pictures are not the best, but could someone give me a hand? http://zooarchaeology.ning.com/photo/albums/cartilaginous-fish All the best! Rita -- *Rita Dupont de Sousa Dias** Núcleo de Arqueologia e Paleoecologia Universidade do Algarve. *