EUYTHRINUS. 253 



after teing taken from the water. The food found 

 in its stomach was the seed of the awarra, a species 

 of palm (Aristocari/on spec ?) 



D. 12— P. 15_V. 8/9_A. 10— C. 21_Br. 4_Vert. 36. 



ERYTHRINUS. 

 In this place we have ventured to arrange the 

 genus Erythrinus, in variation to previous systems. 

 Exteriorly, with the exception of the mouth, many 

 species are Carps in appearance ; but the structure 

 of the mouth, and the pancreatic appendages to the 

 stomach, ally them to the Salmons ; Avhile the spot- 

 ting of some, and handing on the fins in others, 

 remind us of both the Trouts and the Graylings. 

 The last form prepared us for the want of the 

 second dorsal fin; and in one which could be 

 placed at the limits or commencement of a family, 

 we should expect either a small development or 

 total want of this accessary character. 



" Erythrinus, Gronovius.^Ca^nt obtusum, rotundatum, 



extus osseum, rugosum, non squamatum ; ossa infra- 



orbitalia maxima, buccas omnino obtegentia. . Os am- 



plissimum, transverium, in toto suo margine dentibus' 



majovibus mi.oribusque altemantibus armatum ; -ossa^ 



■ intermaxillaria mediocria, maxillaria superiora angusta,t 



..■/. ij.utrinqu^ ultra dimidiam partem -Idbii,,sup£;rk)ris -su^ti-^ 



. f : ,, , ne.ntia,;^ pssa, .jj^atina dentibus yelutinis olisita. Lmgpju 



r ^ latissima, plana, apice libera. ^lerrtbrajna brancnioste^a, 



'"/' ~''ra(fiis''5i"' Corpus subf^res; V^irisU^ cdh'd^'iiiji'ceitf si^^ 



^''-r- 'eonipfSstto, squamiff-iHajgaife teikvJa&i^ ^ikiiJUi^^Ui 



l&'iii cs^tralibuaioppjositaJJi 'joLliug jiL'ooma qi;rMiig io 



