EURYLAIMUS JAVANICUS. 
Eurylaimus capite toto corporeqne subtus vinaceis, dorso alisque perfuscis flavo 
varus, cauda atra fascia subterminali alba. 
Eurylaimus Javanicus, Horsf. Syst. Arrangement of Birds from Java, Linn. 
Tram. Vol XIII. p. 170. 
IN proposing again a new genus in Ornithology, it is necessary to detail with 
clearness the reasons and comparisons by which I have been guided in this propo- 
sition. The genus to which Eurylaimus, in a principal character, is nearly allied, is 
Platyrhynchus, as established by Mr. Desmarest, and which comprises, besides the 
species to be enumerated in the sequel, the Todus rostratus and Tod us nasutus of 
Latham. I have to remark, in the first place, that, although on a superficial view, 
there appears a resemblance between these two genera, it is, in my opinion, much 
less striking than that which exists between Pitta and Myiothera, of which the 
former constitutes an Asiatic group, which is supplied in America by the latter. 
As far as regards Platyrhynchus, we have the authority of Mr. Temminck for proving 
that, with probably one or two exceptions, its range is confined to America ; while 
Eurylaimus has only been found in the Indian Archipelago. As types of the genus 
Platyrhynchus, Mr. Temminck gives Lanius Pitangua of Linnaeus, and Platyrhyn- 
chus olivaceus and Platyrhynchus eancromus, two new species, which are figured in 
the Second Number of Planches Coloriees, a splendid Work, serving as a conti- 
nuation of the Planches Enluminees, and published jointly by Mr. Temminck and 
the Baron Laugier. 
Referring for the characters of Eurylaimus to the detailed description given in 
the natural character of that genus, I proceed to a comparison of the characters of 
Lanius Pitangua, and of the two species of Platyrhynchus above mentioned, as far as 
the figures referred to have enabled me to make it The bill of Lanius Pitangua is 
essentially different; it is longer than the head ; the culmen, or back, is proportionally 
prominent, and presents a defined ridge, from which the sides decline gradually, and 
constitute an elevated upper mandible ; the cutting edges, or tomia, instead of being 
perpendicular, as in Eurylaimus, are rounded and inflected : the bill in Lanius 
Pitangua is also less broad at the base ; the edges are continued nearly straight to the 
gape under the eye, and not extended backward under that organ into a narrow 
incurved margin, which forms an excessively wide throat, from which the generic 
name of Eurylmmiis is derived. 
The nostrils in Lanius Pitangua, instead of being perfectly naked and open, 
are covered above by a small membrane, while numerous long decumbent vibrissse 
