AGASSIZ, 1829 131 



Motella Cuvier, 334; type Gadus mustela L. 



Substitute for Mustela Cuvier, 1817, preoccupied in mammals. Identical with 

 Gaidropsarus Rafinesque, 1810. 



Monochir Cuvier, 336; type Pleuronectes microchirus De la Roche. 



Substitute for Monochirus, preoccupied. Not sufficiently different. 

 Osteoglossum (Vandelli) Cuvier (about 390) ; type Osteoglossum 



vANDELLi Cuvier. 

 Gymnarchus Cuvier (about 390) ; type Gymnarchus niloticus Cuvier. 

 Triodon Cuvier (about 390) ; type Triodon bursarius Reinwardt. 



Anacanthus (Ehrenberg) Cuvier (about 390) ; type (not named) Raja 

 uarnak Forskal. 

 Monotypic. Replaces Himantura Miiller, 1837. 



Heterotis Ehrenberg ; type Sudis niloticus Cuv. & Val. 



Quoted from the Regne Animal by Giinther, but we do not find it there. Ap- 

 parently it appears first in Cuv. & Val, XIX, 465, 1846. 



CXXXV. AGASSIZ (and Spix), Selecta Genera et Species Piscium 

 quos in Itinere per Brasiliam, 18 ij, 1820, Collejit Dr. J. B. de 

 Spix, 18 2p. 



Louis Agassiz and Jean Baptiste Spix. 



The date of this work is apparently a little later than that of the 

 Second Edition of the Regne Animal. 



Acanthicus Spix, 2 ; type Acanthicus hystrix Spix. 



Rhinelepis Spix, 2 ; type Rhinelepis aspera Spix. 



Cetopsis Agassiz, 8; type Cetopsis c^cutiens Agassiz. 



Hypophthalmus Spix, 9; type Hypophthalmus edentulus Spix. 



Phractocephalus Agassiz, 10 ; type Phractocephalus bicolor Agassiz. 



Platystoma Agassiz, 10; type Silurus lima Bloch & Schneider. 

 Name preoccupied by a genus of flies, Meigen, 1803. 



Glanis Agassiz, 10; type not named. 



Name given in dative case only "In Glanide Agass." Substitute for Bagre 

 Cuvier, rejected because of barbarous origin. Afterwards (1856) Glanis was 

 revived as the generic name for the Greek cat-fish, Glanis aristotelis Agassiz, 

 which is perhaps a Parasilurus. 



