Analytical Synopsis of the Order of Squall. 381 



Tetroras Raf., Heptranchias Raf., Scoliodon Mtill, and lien., Lep- 

 tocharias Smith. 



2. Sub-fam. Centrinin^. 



Centrina. Centrina Cuv., Spinax Cuv., Eimoptterus Raf., Scynnus 

 Cuv., Centrophorus Miillci- and Henle — Galeus Antiq. Raf., — 

 Scyllium Cuv. — Ceslracion Cnv. — Mustelus Raf. 



Spiraculated Sharks, whose natural affinities are uncertain, 

 and whose rank as sub-genera or aberrant species has not been 

 ascertained. 



Hexanchus Raf., Oaleocerdo M. and H., Oxyrhina Agass., Rhiniodon 

 Smith, Pristiurns Bon., ChiloscylUum M. and H., Loxodon M. 

 and H., Triglochis M. and H., Alopecias M. and H. 



3. Sub-fam. Zyganin^e. 



Zygana Antiq., Platysquahis S\v. 



4. Sub-fam. Crossorhin.e. 

 Crossorhinus M. and H. 



5. Sub-fam. Pristine. 

 Pristis Latham. 



Family 2. Raid.«. Rays, Skates, Thornhacks, 

 4. Sub-fam. Squatin^e. 

 Squatina Bum. 



Mr. Swainson's classification is the natural system. Mr. 

 Swainson affirms this, and lias elsewhere decided that Cuvier 

 " was totally unacquainted with the very fiirst principles of the 

 natural system ;" in a note on ChiloscylUum., he observes that 

 he had "before expressed [his] opinion on the very artificial 

 nature of the arrano^ement of the cartilao-inous fishes by Miiller 

 and Henle." We had, unfortunately, almost overlooked at first 

 the system of the learned philosopher ! but on account of its 

 imposing nature and proportions, it cannot be neglected. JSTo 

 charge of plagiarism can be brought against it ; it is the most 

 original arrangement of the sharks that has ever been proposed, 

 and in every respect worthy of that Kafinesque whose genera 

 are all adopted in it. All other naturalists have regarded as 



