192 GENUS 



small ventrals ; but baring as yet no letter-press to 

 this work, we have no information beyond the 

 figure, which has also a rounded belly, though not 

 so disproportionate, and strong serrated processes. 

 The pectoral, dorsal, and caudal fins are tinted with 

 yellow. 



The Salmonida, in particular forms, as we have 

 seen, appear rather extensively; these, however, 

 are none of them typical, and Humboldt, when al-. 

 luding to the geographical distribution of fishes in 

 those countries, remarks that " no species of Salmo 

 inhabits the Andes which I have examined." Ano- 

 dus and Calceus take the place of Coregonus and 

 represent the Herriugs, while the deep-formed Ser- 

 rasalmones and Tetragonopteri are analogous to the 

 Cyprini and Salmon Carps, though much more vora- 

 cious and formidably armed. 



In addition to those we have noticed in the pre- 

 vious volume, there is introduced, in the Brazilian 

 fishes, two species of Anodus, said to inhabit the 

 rivers of Brazil. The one A. elongatu* t a fish of 

 considerable elegance, closely resembling in form 

 some of the Coregoni, olive above shading "into a 

 golden colour; also A. latior, likewise resembling 

 some of the deeper formed European Coregoni, 

 nearly of the same colours with the last, but with 

 very small scaling. The second dorsal fin in both 

 these fishes is fimbriated at its posterior apex. 



