12 CONTKIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY 1. 



* I. " Precis des Decouvertes Somiologiques*', 1814 : 



Sparus mocasinus 19 = Eupomotis aureus (Walb.) G. & J. 



Oentropomus albus 19=Morone americana (Gmel.) Gill. 



Centropoirrus luteus . - . . 19=Perca americana Schranck. 



II. Dissertation on Water Snakes, Sea Snakes an<l Sea Serpents. 

 <; American Monthly Magazine and Critical Keview, September, 1817 : 



Anguilla gigas .... 434=A myth. 



III. First Decade of new North American Fishes. < American Monthly 

 Magazine and Critical Review, December, 1817 : 



Anguilla chrisypa 120= Anguilla vulgaris Fleming. 



Salrao pallidus 120=Salmo namaycusb Bloch. 



Bodianus rupestris 120= Ambloplites rupestris (Raf.) Gill. 



Bodianus achigan..... 120=Micropterus salmoides (Lac.) Gill. 



Cyprinus bullaris 120=Leucosomus bullaris. (Raf.) Jor, 



{Semotihis argenteus Auct.) 

 Cyprinus Lemiplus...- 121=]Srotemigonus americanus (L.) Jor. 

 Cyprinus vittatus . . . . . 121=Rhinichthys atronasus (Mit.) Ag. 



Cyprinus megalops 121=Lusilus cornutus (Mit.) Jor. 



Cyprinus melanurus.. . 121 = Luxilus cornutus (Mit.) Jor. 



IV. Description of two new Genera of North American Fishes, Opsa- 

 nus and Notropis. <:^American Monthly Magazine, January, 1818: 



iSTotropis atherinoides.. 204=Nototropis sp. [Minnilus Raf.— J.Z- 



hurnellus Grd.). 



Y. Second Decade of new North American Fishes. < American Monthly 

 Magazine, January, 1818: 



Perca mucronata. ..... 204=Morone americana (Gmel.) Gill. 



Perca notata... 205=Perca americana Schranck (=Perm 



fiavescens Auct.) 

 Petromyzon leucopterus 205=Ammoccetes nigricans (Le S.) Gill. 

 Sparus erythrops. . .... 205 (Erroneous and unidentifiable.) 



* I have been unable to obtain this paper. Professor Gill informs me that two or 

 three other American species are described in it, among them Perca americana Schranck. 



