190 THE GENERA OF FISHES, PART TI 



Hemitrygon Miiller & Henle, 90; orthotype Trygon bennetti M. & H. 



Ginglymostoma Muller & Henle, 413; orthotype Squalxts cirkatus Gmelin. 



Scoliodon Muller & Henle, 114; orthotype Carcharias laticauuus M. & H. 



Gymnura Muller & Henle, 117; orthotype Raja asperrima B1. & Schn. Name 

 preoccupied; replaced by Urogymnus M. & H. 



Himantura Muller & Henle, 400; orthotype Raja uarnak Forskal. 



Urogymnus Muller & Henle, 434; logotype Raja asperrima B1. & Schn. Re- 

 places Anacanthus Ehrenb. and Gymnura M. & H., both preoccupied. 



218. REDFIELD (1837). Fossil Fishes of Connecticut and Massachusetts zvith a 



Notice of an Undetermined Genus. Ann. Lye. Nat. Hist. N. Y. 

 John Howard Redfield (1825-1895). 

 Catopterus Redfield, IV, 39; orthotype C. gracilis Redfield (fossil). Preoccupied 

 by Catopterus Ag. (1833) ; replaced by Redfieldius Hay (1899). 



219. REINHARDT (1837). Bythitcs, novum genus piscium. Danske Vid. Selsk. 



Afh., VI. 

 Johannes Christopher Hagemanx Reinhardt. 

 Bythites Reinhardt, VI, 77; orthotype B. fuscus Reinh. 



220. SMITH (1837). On the Necessity for a Revision of the Groups Included in 



the Linncean Genus Squalus. Proc. Zool. Soc. London. 

 Andrew Smith. • 



Poroderma Smith, 85; logotype Squalus africanus Gmelin. 



Catulus Smith, 85; orthotype Scyllium capense Smith. Name preoccupied in 

 insects, partly equivalent to Scylliorhinus Blainv., 1816. 



Hemiscyllium Smith, 86; logotype Squalus ocellatus Bonneterre. 



Carcharodon Smith, 86; orthotype Carcharodon capensis Smith — Squalus car- 

 charias L. 



Leptocarias Smith; ///. S. Afr. Zool.; orthotype Tri.i;nodon smithi Gray; quoted 

 by Agassiz, Norn. Zool.. 1846; hence prior to Leptocarcharias Gthr., 1870. 

 Replaces Leptocarcharias. 



221. THOMPSON (1837). Notes Relating to the Natural History of Ireland, 

 zmth a Description of a New Genus of Fishes (Echiodon). Proc. Zool. Soc. 

 London, V. 



William Thompson. 

 Echiodon Thompson, 55; orthotype E. drummondi Thompson. A synonym of 

 Carapus Raf. (Fierasfer Cuv.). * 



1838 

 222. AGASSIZ (1838). Rechcrches sur Ics poissons fossiles. Ill, IV (parts). 



Louis Agassiz. 

 Ptychopleurus Agassiz, HI, 67; orthotype Ptychacanthus faugasi Ag. A fossil 



ally of Myliobatis. 

 Oxyrhina Agassiz, III, 86; logotype O. mantelli Ag. (fossil). Name preoccu 



pied, the genus not separable from the living genus TsURUS Raf. (1810). 

 Orodus Agassiz, HI, 96; logotype O. cinctus Ag. (fossil.) 

 Ctenoptychius Agassiz, III, 99; orthotype C. apicalis Ag. (fossil). 

 Helodus Agassiz, III, 104; orthotype H. simplex Ag. (fossil). 

 Chomatodus Agassiz, III, 107; logotype C. cinctus Ag. (fossil). An ally of 



CocHLiODUS, of undetermined value. 



