1870. ] DR. O, FINSCH ON THE BIRDS OF TRINIDAD. 577 
Granada (Baranquilla), s. n. M. robustus, Cab. The colouring is 
exactly the same as in DM. atronitens, also the metallic-green lustre 
on the vent and under tail-coverts; but the size is constantly much 
larger. Having proved that M. discolor of Cassin cannot be either 
M. discolor of Vieillot or M. atronitens of Cabanis (a fact which 
has been already mentioned by Von Pelzeln, Orn. Bras. iil. p. 200, 
note 3), I am justified in giving it a new name—Molothrus cassini, 
Finsch. The Molothrus sp.?, described by Dr. Sclater (Cat. pp. 135, 
821, note), from Trinidad, belongs apparently to this species. I 
must mention that Dr. Gundlach does not notice this bird in his 
lists of the birds from Cuba. M. eneus, Wagl. (= robustus, Cab., 
Cass. Proc. Phil. 1866, p. 18), from Mexico and Central America, 
we possess also from New Granada. This species is easily distin- 
guished from M. cassini, with which it nearly agrees in size; but 
those parts which are dark purple-violet in M. cassini, in M. eneus 
are black with a silky metallic bronze-like lustre, as described by 
Wagler and Cassin. M. purpurascens, Cassin (J. c. p. 20), from 
Peru, seems to be nearly allied; also his M. sericeus (J. c¢. p. 21) 
from Brazil, which is by no means the species described under this 
name by Lichtenstein and Swainson. Xanthornus purpurascens, 
Hahn (Vog. aus Asien, Africa, &c. Liefer. v. t. 4), is very probably 
not the species described under this appellation by Cassin, but must 
be referred to M. bonariensis, Gmel. (Cass. 7. c. p. 19), with which 
Icterus sericeus, Licht. (Doubl. Cat. p. 19), and Icterus violaceus, 
Neuwied (Beitr. iii. p. 1212), are identical, and, as I am strongly 
of opinion, also the Passerina discolor of Vieillot. 
CHALCOPHANINE. 
64, CHALCOPHANES LUGUBRIS (Sw.). 
Quiscalus lugubris, Sw. An. in Menag. p. 299, f. 54 (nec 50) c; 
Sel. Cat. p. 141; Taylor, Z. ¢. p. 84. 
Chalcophanes jamaicensis et minor, Cab. Schomb. Reise, iil. p. 683. 
Chalcophanes lugubris et minor, Cab. M. Hein. p. 197. 
Quiscalus barita, Léot. p. 268. 
Quiscalus lugubris, Cass. Proc. 1866, p. 408. 
Old male; black, with a faint purple-violet lustre, much less de- 
cided than in Molothrus bonariensis; quills and tail with a slight 
green lustre; the under tail-coverts washed with metallic green ; 
bill and feet black. Another specimen is more uniform glossy black, 
the purple-violet lustre being scarcely visible. A younger one (or 
female) shows no purple or greenish reflection; the underside is 
lighter, more dull brownish black ; chin paler brown. 
Specimens from Demerara in the Bremen Museum are like. 
Long.al. _rectr. med. _ rect. ext. rostr. tars. 
Ae bt Br ee 2" 10" ale 13” (¢ ad., Trinidad.) 
4 3 an 2h 2 10 11 13. (¢ ad., Trinidad.) 
3 11 a2 2.5 10 12. (¢ jun., Trinidad.) 
4 3 bey / 2 10 11 14 (6 ad., Guiana.) 
3 93 2 11 pa: — 123 (do jun., Guiana.) 
