Analytical Synopsis of the Order of Sqiiali. 405 



Genus Squalus [Artedi) Raf. 

 Squalus Raf, ISIO {S. uyatus). 

 Dalatias Eaf, 1810. 

 Acanthorliinus Blainville, 1816. 

 Spinax Otcv., 1817. 

 Acanthi as Risso. 

 Acanthias Bon., 1838. 



Type Squalus acanthias Linn. 



Genus Spinax Bon. 

 Etuiopterus liaf, 1810 (misconception). 

 Spinax sp. Cumer (S. acanthias). 

 Spinax Bonaparte, 1838. 

 Acanthidium Loive, 1839. 



Type Spinax niger Cloquet. 



Genus Oxynotus Raf., 1810. 

 Centrina Cuvier, 1816. 



Type Oxynotus centrina Raf. 



Genus Centrophorus Milller and Henle, 1838. 

 Lepidorhinus Bonaparte, 1838. 

 Acanthorhinus Gray and Oebhard, 1851. 



Type Centrophorus granulosus Ililll. and Henle. 



Genus Centroscyllium Midler and Henle. 

 Type Centroscyllium Fabricii Mailer and Henle. 



Family SCYMNOIDyE, Owen. 

 Synopsis. 

 Teeth above broad ; below lancet-shaped. Scymnus. 



Teeth above narrow ; below quadrate, with a horizontal edge 



ending in a point directed outwards. Somniosus. 



Genus Scymnus Cuv., 1817. 

 Dalatias Raf., 1810 (misconception). 

 Scymnorhinus Bon. 



Type Scymnus lichia {Cuv.) Bon. 



