books.google.co.uk - This book deals with widely different aspects of the biology of hagfishes. It presents reviews of recent research, covering topics as palaeontology, systematics, ecology, immunology and reproduction as well as structure an dfunction of important organs and organ systems: skeleton, muscle, skin, respiratory...http://books.google.co.uk/books/about/The_Biology_of_Hagfishes.html?id=vu1uzL0p7xsC&utm_source=gb-gplus-shareThe Biology of Hagfishes