TABLE OF CONTENTS. 



Pago. 



Introduction 1 



Description of species 2 



Family Heterodontidae 2 



Genus Gyropleurodus 2 



peruanus 2 



Family Scylliorhinidae ! 3 



Genus Halaelurus , 3 



chilensis 3 



Genus Sphyrna 5 



zygaena 5 



Genus Mustelus 5 



mento 6 



abbotti 6 



dorsalis 7 



nigromaculatus 9 



Genus Galeus 10 



zyopterus 10 



Family Squatinidae 11 



Genus Squatina 11 



squatina 11 



Genus Rhinobatus 12 



planiceps 12 



Family Rajidee 13 



Genus Raja 13 



aguja 14 



steindachneri 14 



Genus Psammobatis 16 



brevicaudatus 16 



Genus Discopyge 16 



tschjudii 16 



Genus Pteroplatea 16 



crebripunctata 16 



Genus Myliobatis 17 



califomicus 17 



Genus Callorbynchus 18 



callorhynohus 18 



Family Clupeidae 19 



Genus Potamalosa 19 



notacantlioides 19 



Genus Sardinella 20 



sagax 20 



Genus Harengula 21 



stolifera , 21 



V 



