TABLE OF CONTENTS. 



Names of genera and species. 



Introduction 



Table of Contknts 



List op the New Genera and SrEtiES with Etymologies . 



List of Plates 



Marsipobrancuii. 

 Hyperotreta : 

 Myxinidie — 



Myxine, L. — 



M. glutiiiosa, L 



austrulis, Jenyiis 



Htperoartia : 



Petrorayzontida! — 



Petromyzon, Artedi — 



P. marinus, L 



Bathymvzon, Gill — 



B. Bairdii, Gill 



Elasmobranchii. 



Tectospondyli : 



SoymnorhinidfB — 



Scymnorbiniis, Cuv. — 



S. lichia, Bonn 



Somniosns, Le S. — 



S. microcephalns, (Schn.) •. 



rostratus, (Kisso) 



Echinorhinus, Bl. — 



E. spinosus, Gm 



EtmopteridiE — 



Etiiiopterus, Raf. — 



E. spinax, L 



pusilliis, (Lowe) 



granulosus, Gtlir 



Paracentioscylliuni, Ale. — 



P. ornatuni, Ale 



Centrosuvlliuui, M. & H. — 



C. Fabrioii, (Rhdt.) 



granulatuni, Gthr 



Scymnodon, B. & C. — 



S. ringens, B. & C 



Ceutropborus, M. & H. — 



C. uyatus, (Raf.) 



lusitanifus, B. «fcC 



crepidater, li. & C 



equamosns, Ginel 



Duuierilii, (.Johnson) 



calceus, Lowo 



Bquaraulosus. Gthr 



foliaceus, (jthr 



Centroscyninus. B. & C. — 



C. ctelolepis, B. «& C 



oljscnrus, V 



Oxynotus, Raf. — 



O. centrina, (L.) 



ASTEROSroNDYLI ; 

 ScylliorhiuiiliE — 



Scylliorhinus, Bl. — 



S. ret i for, Garman 



prolundorum, 6. & B 



hispidus, Ale 



canescens, Gthr 



Galeidse — 



Mustelus — 



M. hinnulne, Bl 



Psendotriacis, Capello — 



r. luicrodon, Capello 



Pristiurus, Bon. — 



P. uiel.i,stiinius. ( l»af.) 



atlauticus, V 



Plate and figure. 



Page. 



1,1 

 1,2 



111,8 



111,9 



V, 18 

 11,5 



11,7 



IV, 12 

 III, 11 



IV, 13 



VI, 21 



IV, 14, 15 

 V, 16 



V. 17 



III, 10 

 VI, 20 



III 



IX 



XXXI 



I* 



10 



10 

 10 



507 



11 

 11 



11 



12 

 12 

 13 

 13 

 13 

 14 

 508 

 508 



14, 508 



15 



15 



16, 508 



17 



508 



508 



18, 508 



20, 508 

 21 



III 



