ICHTHYOLOGY, 



BY 



DR. F. H. TROSCHEL. 



AT the head of this year's Report I place a Memoir by 

 J. Miiller, which affords expositions of the highest import- 

 ance with regard to the systematic arrangement of the 

 Fishes : Ueber den Bau und die Greuzen der Ganoiden 

 mid iiber das uatiirliche System der Fische (On the 

 Structure and Limits of the Ganoidei, and on the Natural 

 System of the Fishes) in the Reports of the Berlin Academy, 

 1844, p. 416, and further detailed in these Archiv. (1845, 

 p. 91.) Since the system here proposed rests upon such a 

 certain base that it will undoubtedly be universally recog- 

 nised, I shall in what follows arrange my Report according 

 to it. 



Of importance for the knowledge of Fishes is a work 

 edited by Lichtenstem : J. Forsteri, descriptiones auimalium 

 in itiuere ad maris australis terras, per annos 1772 bis 

 1774 suscepto, observatorum ; Beroliui, 1844. 8. Forster's 

 descriptions have hitherto been before the public only in 

 Bloch's Systema ed. Schneider, and in fact not in a complete 

 form. They appear in this work complete, and with the 

 addition of those names which have been given to the Fish 

 in later times, particularly in Schneider's edition of Bloch, 

 and in Cuvier Valenciennes. 



The fifth Part of the Zoology of the Voyage of H.M.S. 

 Sulphur, under the command of Captain Sir Edward 



