78 THE GENERA OF FISHES 



Isurus Rafinesque, ii; type Isurus oxyrhynchus Rafinesque. 



Monotypic. Replaces Oxyrhina Agassiz. 

 Cerictius Rafinesque, 12; type Cerictius macrourus Rafinesque. 



Apparently imaginary. 

 Alopias Rafinesque, 12; type Alopias macrourus Rafinesque (Squalus 

 vui-PiNus Bonnaterre). 



Monotypic. 

 Heptranchias Rafinesque, 13; type Squalus cinereus Gmelin. 



Monotypic. 

 Galeus Rafinesque, 13; type Galeus mustelus L. 



As restricted by Jordan & Evermann, 1896. after Leach, 1812. Later restricted 

 to Pristiurus melastomus by Garman. Not Galeus Valmont, nor Galeus 

 Cuvier. 



Rafinesque describes one new species of Galeus, G. melastomus, but refers 

 in the text to Galeus catulus and Galeus mustelus. Unless Galeus Valmont 

 holds, in place of Prionace, Galeus becomes a synonym of Mustelus Linck. 



Hexanchus Rafinesque, 14; type Squai.us griseus L. 



Monotypic. Replaces Notidanus Cuvier. 

 Etmopterus Rafinesque, 14; type Etmopterus aculeatus Rafinesque. 



Monotypic. Replaces Spinax Cuvier. 

 Rhina Rafinesque, 14 ; type Squalus squatina L. 



Monotypic. Identical with Rhina Klein, and Squatina Dumeril. 

 Leiobatus Rafinesque, 16; type Leiobatus panduratus Rafinesque. 



Monotypic. A synonym of Ruinobatus Linck. Not Leiobatus Klein. 

 Dipturus Rafinesque, 16; type Raja b.\tis L. 



Monotypic. Identical with Raja L. 



Dasyatis Rafinesque, 16; type Dasyatis ujo Rafinesque (Raja pastin- 



aca L.). 

 Monotypic. Identical with Dasyratus Klein and Trycon Adanson. 



Orthragus Rafinesque, 17; tyi)e Tetraobon mola L. 



Monotypic. Equivalent to Mola Kcelreuter. 

 Diplanchias Rafinesque, 17; type Diplanciiias nasus Rafinesque. 



McjiKilypie. Equivalent to Mola. 

 Typhle Rafinesque. 18; type Typiile uexagonus Rafinesque (Syngna- 

 TltUS TYPIILE L. ). 



Misspelled TiPHLE. Preoccupied by Typhle* Lacepede, 1800, a genus of mam- 

 mals. Kci)l:iced by Tvi'iiLiNUS Ralinesque, 1815, and by Siphonostomus Kaup. 

 Monotypic. 



* Under the head of C/i:cilia, Lacepede refers to its alleged blindness, a char- 

 acter almost unknown among vertebrates. "Parmi lesquels on ne connoit encore 

 qu'un niamniifere, nomme Typhle, ct le genre des cartilagineux nommes Gastro- 

 BRANCHES quI aient paru completement aveugles." 



