Vol 'wi9 XVI ] Wetmore, The Palate in Icteridce. 197 



With regard to others, Tangavius ceneus has a slight ridge, that 

 becomes stronger behind, extending for two-thirds the length of 

 the palate. A similar ridge in Molothrus badius is less developed 

 at its anterior end than in the preceding genus. In Moloihrus 

 fringillarius (one specimen only examined) this ridge is still less 

 in development. In Moloihrus ater, the cutting edges of the tomia 

 do not extend below the level of the palate, and there is a rounded 

 swelling behind the center; in Molothrus atronitens only a ve*y 

 slight ridge is present, and finally in M. rufo-axillaris there is no 

 peculiarity worthy of mention. Nesopsar nigerrimus shows a well 

 marked rounded ridge on the posterior part of the palate that 

 merges into the anterior surface without becoming produced as an 

 angle. Xanthopsar imthurmi shows a slightly developed posterior 

 ridge, while in Agelaius phceniceus (including gubernator) there is a 

 very faint swelling at the posterior end of the palate, that becomes 

 much more pronounced in A. tricolor. Agelaius thilius and A. 

 icier ocephalus show a faintly raised median line, that in the latter 

 species is broadened and rounded posteriorly. Amblyrhamphus 

 holosericeus has a long, low, keeled median ridge, and in the three 

 species of Sturnella there is an elongate keel, that is rounded behind 

 and acute in front. In Curceus aterrimus the palate is on a level 

 with the edge of the tomia, and has a low rounded bulge on its 

 posterior surface. Trupialis militaris and T. falklandicus have a 

 slight rounded posterior ridge, that is absent in T. bellicosa and 

 T. defillipi, and finally in Gymnomystax melanicterus there is a low, 

 narrow, keeled ridge on the posterior part of the palate, that merges 

 gradually into the surrounding level in front. None of the other 

 species seen present any marked peculiarities. 



