AVES. 
101 
ICTERID^. 
CassiNj John. A study of the Icteridcc, Proc. Acad. Philad. 
1866, pp. 10-25, and 403-4d7. 
The first of these papers treats of the subfamily AgelmincCj 
the second of Quiscalince. Of Agelams the author makes twelve 
species, of Leistes eight, of Dolichomyx five, Molothrus thirteen, 
and of Bturnella nine. Of Quiscalus seventeen species are dis- 
tinguished, of Scolecophagus five, of Idiopsar (gen. nov.) and 
Potamopsar one, and of Cassidix four. Mr. Cassin, apparently 
with very good reason, refuses to recognize more genera in these 
groups. The synonyms of each species are carefully given, and 
a few other brief details added. The second paper contains also 
descriptions. 
Dolichonyx fuscipennis is a new species from North-Eastern Brazil, is 
distinguishable from D. hadius by its lighter colour, and especially its light- 
brown quills, edged only with red. J. Cassin, ut supra, p. 16. 
Oriolus melancholicus, Linn.,” probably belongs to the genus Dolichonyx, 
Idem, ut suprh, p. 16, note. 
Molothrus cahanisi is described as a new species from Guiana and New 
Granada. It is possibly the Lampropsar dives of Cabanis (Mus. Ilein. i. 194), 
but not. of Bonaparte (Consp. Av. i. p. 426). It is easily distinguished from 
L. tanayrinus and L. guianensis by its much larger size and the golden-violet 
lustre of its plumage. Idem, ut supret, p. 22. 
Molothrus rufoaxillaris is a new species from Buenos Ayres to be recog- 
nized by the reddish-chestnut axillaries. Idem, ut siqm), p. 14. 
Quiscalus aglceus is described as a new species from Florida, allied to Q. 
purpureus (Q. versicolor, Vieill.), but smaller, with a more pointed and decurved 
bill, and remiges differently proportioned. It is Q. haritus of Baird (B. N. 
Am. p. 656, pi. xxxii.) nec Linn. S. F. Baird, Am. Journ. Sc. & Ails, 1866, 
p. 84 ; .1. Cassin, Proc. Acad. Philad. 1866, p. 404. 
Quiscalus gundlacki is described as a new species from Cuba, allied to Q. 
haritus (Linn.) from Jamaica, with which it has been confounded by 
D’Orbigny and Gimdlach, but a little smaller, with a niore slender bill, com- 
paratively longer tail, and more lustrous plumage. J. Cassin, ut supra, p. 406. 
Quiscalus hrachypterus is described as a new species from Porto Bico, re- 
sembling the species from Jamaica and Cuba, but smaller, with a more slender 
bill and shorter tail and wings. It is the Q. haritus of E. C. Taylor (Ibis, 
1864, p. 168) nec Linn. Idem, ut supra, pp. 406, 407. 
Quiscalus mexicanus is a new species from Mexico, most resembling Q. 
luguhris from Trinidad, but rather larger, and has the bill much stronger and 
more curved. Idem., ut supra, pp. 408, 409. 
Quiscalus rectirostris is described as a new species from an unknown loca- 
lity, easily recognized by its straight slender bill. Idem, ut supra, p. 409. 
Idiopsar is a new genus, allied to Quiscalus and Scolecophagus. The tail is 
short, nearly even at the end, and emarginate. The wings long. General 
form short and compact ; bill about as long as the head, strong, slightly 
curved, with the commissure much indexed, ciilmen distinct. Legs and feet 
moderate. The type species is I, hrachyurus from Bolivia. Idem, ilt suprd, 
p. 414. 
