78 THE GENERA OF FISHES 



Isurus Rafinesque, 1 1 ; 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 

 vuLPiNus 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 Squalus 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 Rhinobatus Linck. Not Leiobatus Klein. 

 Dipturus Rafinesque, 16; type Raja batis L. 



Monotypic. Identical with Raja L. 

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



ACA L.). 



Monotypic. Identical with Dasybatus Klein and Trygon Adanson. 

 Orthragus Rafinesque, 17; type Tetraodon mola L. 



Monotypic. Equivalent to Mola Koelreuter. 

 Diplanchias Rafinesque, 17; type Diplanchias nasus Rafinesque. 



Monotypic. Equivalent to Mola. 

 Typhle Rafinesque, 18; type Typhle hexagonus Rafinesque (Syngna- 



THUS TYPHLE L.). 

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

 mals. Replaced by Typhlinus Rafinesque, 1815, and by Siphonostomus Kaup. 

 Monotypic. 



* Under the head of Cecilia, Lacepede refers to its alleged blindness, a char- 

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

 qu'un mammifere, nomme Typhle, et le genre des cartilagineux nommes Gastro- 

 BRANCHES qui aient paru completement aveugles." 



