74. On some West-Indian Birds. 
this peculiar species to the genus Leucopeza, which I estab- 
lished (P. Z. 8S. 1876, p. 14) on a bird discovered in St. Lucia 
by Mr. Semper. But I do not think it possible to refer these . 
two forms to the same genus; and I therefore propose the 
name Catharopeza (ka@apos, clarus, et méCa, pes) for Mr. 
Lawrence’s bird. Catharopeza differs from Leucopeza in its 
shorter and broader bill, the slight bristles on the rictus, the 
shorter tail, and rather shorter and stouter tarsi. 
Mr. Lister obtained examples of this species in both the 
plumages described by Mr. Lawrence, and, curiously enough, 
marks the white-gorgeted bird as a female and the brown- 
throated oneasamale. But I have little doubt that Mr. Ober 
(as quoted by Mr. Lawrence) is correct in his statement that 
the adults of both sexes are similar in plumage, and that the 
brown specimen is a young male. 
The plumage of Catharopeza is quite peculiar among the 
Mniotiltide ; but I agree with Mr. Lawrence that it must be 
referred to this family. 
The figures (Plate I.) are taken from Mr. Lister’s speci- 
mens, and represent, according to the views expressed above, 
an adult female (the male being similar) and a young male 
in the background. 
5. Myiarcuvus oBERI. 
Myiarchus oberi, Lawrence, Ann. N.Y. Ac. Sc. 1. p. 48. 
I have examples of this species from Dominica, received 
direct from Mr. Ober, and kindly obtained for me through 
Mr. Lawrence. Mr. Taylor’s specimen from Dominica, and 
the skins of Mr. Semper from St. Lucia (M. erythrocercus, 
mihi, P. Z. S. 1871, p. 271) belong to the same species. In 
my opinion therefore M. oberi= M. erythrocercus, concerning 
which species cf. Ridgway, Proc. U.S. Nat. Mus. 1. p. 138. 
6. CyPpsELoIDES NIGER (Gm.). 
Cypseloides niger, Scl. P. Z.S. 1865, p. 615. 
Mr. Lister’s specimen of this species agrees well with Ja- 
maican examples in my collection. Mr. Ober does not appear 
to have noticed this bird, as it is not included in Mr. Law- 
rence’s catalogue. 
