310 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
The writer here takes oeca.sioii to thank the authorities of the Ameri- 
can Museum of Natural History' for the loan of material necessar}^ for 
comparison in the preparation of this paper. He is, as well, under 
great obligation to Mr. Robert Ridgway and Dr. Charles W. Richmond 
for various courtesies. 
The systematic sequence of the following list is that of Mr. Hartert, 
in the Tierreich, which seems to be by far the best arrangement yet 
proposed. All measurements in this paper are in millimeters. 
DORYFERA JOHANNAE (Bourcier). 
Trijcltllus joliannae BorRtiEK, Proc. Zool. Sof. Loud., 1S47, ]>. 45. 
Dorifera Jo]i(mniii' BoyAPARTE, Consp. Avium, I, 1850, p. 68. 
Two specimens — male and female — from Archidona, east Ecuador, 
April, 1899. They appear not to differ from Colombian specimens. 
A ]>air sh<it in the depth.'J of the forests on our way down to the Napo, a day's 
walk above the village of Archidona. They liad a very loud, sharp call note. 
DORYFERA LUDOVICIAE RECTIROSTRIS (Gould). 
Dory/era rectirostrit< Gould, Introd. Troch., 1861, p. 71. 
Dor yf era ludovickw reetirostrls Hartert, Tierreich, IX, 1900, p. 11. 
Nine specimens, all but one from Milligalli, west Ecuador. A single 
male from Baeza, east Ecuador, does not differ from the others. The 
females closely resemble the males, })ut lack the glittering green fore- 
head. Aside from the greater length of bill this form differs from 
true ludookvae in its much longer wing and tail, characters not com- 
monly mentioned. 
I was told that at one time these birds used to be met with regularly at Milligalli, 
but now they are only occasionally seen there. Local name, " Viudas" — widows. 
THRENETES CERVINICAUDUS Gould. 
llirciuics rerrinicandu Gould, Proc. Zool. Soc. Lond., 1854, p. 109. 
Two adult males from Napo village, east Ecuador, are apparently 
not different from Colomliian specimens. 
THRENETES FRASERI (Gould).' 
(ylanclsfrasi'ri Gould, Mon. Troch., I, 1861, i)l. xn. 
Tlireiu'tesfraseri Boucakd, Humming Bird, 1, 1892, p. 17. 
Four specimens, from Santo Domingo, west Ecuador. Although 
most closely allied to T/wenetes ruckeri, the present species is yet quite 
distinct, and in any plumage can be readily identiiied. An additional 
character separating it from T. rackeri is the darker, less golden shade 
of the upper parts. Immature birds have the feathers of the upper 
surface narrowly margined with buft'y or grayish white. There seems 
to be no difference between the sexes. 
