TILESIUS, 1820 



113 



Teretulus Rafinesque, 57; type Catostomus aureolus Le Sueur. 



As fixed by Jordan, 1877. 

 Decactylus Rafinesque, 60; type Catostomus bostoniensis Le Sueur 

 (Cyprinus teres Mitchill) as restricted by Jordan. 



Catostomus teres is probably the tenable name, as the earlier name com- 

 MERSONi Lacepede is very doubtful. 



Ictalurus Rafinesque, 61 ; type Silurus punctatus Raf. 



Elliops Rafinesque, 62 ; type Pimelodus maculatus Raf. 

 A synonym of Ictalurus. 



Eurystomus Rafinesque, 65 ; type Catostomus megastomus Raf. 



An Audubonian myth. 

 Sterletus Rafinesque, 80; type Acipenser serotinus Raf. (Acipenser 

 rubicundus Le Sueur). 



Dinectus Rafinesque, 80 ; type Dinectus truncatus Raf. 



Another of Audubon's mythical paintings, representing, as suggested by Rafin 

 esque, "only a sturgeon incorrectly drawn." 



Pegedictis Rafinesque, 85 ; type Pegedictis ictalops Raf. 



Apparently a confusion of notes on Catonotus flabellaris and Cottus rich 

 ARDSONi. The species is therefore unidentifiable. Best regarded as a synonym ot 

 Cottus. 



Proceros Rafinesque, 87 ; type Proceros maculatus Raf. 

 A myth, not of Audubon but of "Mr. M. of St. Genevieve." 



CVL TILESIUS, De Piscium Australium Novo Genere : Memoires 

 Academic Sciences, Petersburg, 1820. 



W. G. VON TiLESIUS. 



Balistapus Tilesius, 310; type (Balistes aculeatus L.). 



CVII. RISSO, Alepocephalus, nouveau Genre de Poissons: Memoires 

 de I'Academie Royale de Turin, XXV, 1820. 



Anastase Risso. 



Alepocephalus Risso, 262 ; type Alepocephalus rostratus Risso. 



