32 THE GENERA OF FISHES 



Acarauna Catesby, 31 ; refers to Holacanthus cilaris L. "An aca- 



RAUNA MAJOR PINNIS CORNUTIS AN PARU BRASILIENSIBUS ?, the 



Angel-fish," Catesby. 

 This name cannot be used to replace Holacanthus as it represents a very 

 doubtful identification on the part of Catesby ; not at all a generic division. 



Vipera Catesby, 9, Appendix ; refers to Vipera marina Catesby 

 (Chauliodus sloani Bloch & Schneider). 

 As it is a fish, it cannot belong to the genus Vipera L. Vipera marina is 

 apparently merely a vernacular name, sea-viper or viper-fish being intended. 



Cataphractus Catesby, 9, Appendix ; type Silurus cataphractus L. 

 = Doras cataphractus of authors = Cataphractus ameri- 

 canus Catesby. 

 This name, being preoccupied, cannot replace Doras Lacepede. 



XVIII. GULDENSTADT, Acerina piscis ad PerccB genus pertinens: 

 Nov. Comm. Acad. Petropol., 1774, XIX. 



Anton Johann von Guldenstadt. 

 Not seen by us. 



Acerina Giildenstadt, 455; type Perca cernua L. (Acerina kabir 

 Giildenstadt). 

 Equivalent to Cernua Schsefer. 



XIX. Descriptiones Animalium quce in Itinere Orientali Ohservavit, 

 by Petrus Forskal (edited after the death of the author 



by Carsten Niebuhr). 1775. 



Siganus Forskal, X ; type Scarus rivulatus Forskal. 



No definition. This genus has been of late years generally called Teuthis, but 

 apparently this Linnsean name should remain with the group for which Browne 

 first used it. 



Torpedo Forskal, 1775, 16; type Raja torpedo (not of Linnaeus) = 

 Silurus electricus Gmelin, Malapterurus electricus Lacepede. 

 Forskal describes the Electric Cat-fish of the Nile under the erroneous name 

 of Raja torpedo L. He questions whether it might be allied to Mormyrus or 

 whether it might find a place among the torpedoes of Rondelet, or might it be type 

 of a new genus. "Aut potius novum constituere genus. Certe determinatur tor- 

 pedinis character genericus : Piscis branchiostegus : apertura lineari, obliqua 

 supra pinnae pectorales ; corpore nudo : pinnis ventralibus seu abdominalibus ; 

 dentibus numerosissimis densis, subulatis." This statement leaves no question as 



