TILESIUS. 1820 



113 



Tcretulus 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 tf.res is probably the tenable name, as the earlier name com- 

 MEKSONi Lacepi-de is very doubtful. 



Ictalurus Rafinesque, 6i ; type Silurus punctatus Raf. 

 Elliops Rafinesque, 62 ; type Pimelodus maculatus Raf. 



.•\ synonym of IcTALURUS. 



Eurystomus Rafinesque, 65 ; type Catostomus megastomus Raf. 



An Audubonian myth. 

 Sterletus Rafinesque, 80: type Acipenser serotinus Raf. (.\cipenser 

 RUBicu.NDUs Le Sueur). 



Dinectus Rafinesque, 80 ; type Dinectus truncatus Raf. 



Another of Audubon's mylliical paintinps, 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 ixabeli.aris and Cottus rich 

 ARDSONI. The species is therefore unidentifiable. Hi'st ni-arded as a synonym of 

 Cottus. 



Proceros Rafinesque, 87; type Procekos maculatus Raf. 

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



CVL TILESIUS, De Piscium Australium Novo Gencrc: Memoires 

 Academie Sciences, Petersburg, 1820. 



W. G. von Tilesius. 



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



CV'II. RISSO, Ale pace phalus, nouvcau Genre de Poissons: Memoires 

 de i'Academie Royale de Turin, XX\', 1820. 



Anastase Risso. 



Alepocephalus Risso, 262 ; type Alepocephai.us rostratus Risso. 



