1864.] ON A COLLECTION OF BIRDS FROM PANAMA. 345 
“Seen feeding amongst some low trees near San Pablo Station. 
It has the restless habits of a Campylorhynchus, being constantly on 
the move amongst the outer branches.”’—O. S, 
4. Ruoprnocicua Rosra, Less.; Lawr. Ann. Lyc. Nat. Hist. 
N.Y. vil. p. 292, 
The true position of this remarkable bird is certainly among the 
Oscines. It is in fact very closely allied to Heleodytes. 
5. CYPHORINUS LAWRENCH, Sclater. 
Cyphorinus cantans, Lawr. Ann. Lye. Nat. Hist. N. Y. vii. 
p- 293 (err.). 
C. lawrencii, Lawr. ibid. viii. p. 5. 
C. supra fuscus ; alis et cauda extus nigro Srequenter trans- 
fasciatis: regione auriculari, mento, gutture et pectore toto 
castaneis: ventre cinereo, lateribus et crisso brunnescentibus : 
rostro corneo: pedibus fuscis. 
Long. tota 5:0, alze 2°5, caudse 1°55. 
Hab. In proy. Veraguensi, Panama. 
Sexus similes. Sp. aff. C. pheocephalo Sclateri, ex rep. Equator. ; 
sed pectore clarius castaneo, et ventre cinereo, nec concolore, distin- 
guenda. 
6. Microcercuius Levcostictus (Cab.). 
Cyphorhinus leucostictus, Lawr. l. ¢. vii. p. 320. 
It appears that Dr. Cabanis was right in uniting the Mexican and 
South American specimens of this species, which ranges from South- 
ern Mexico to Ecuador and Guiana; for Panama examples and 
those from the localities north and south present no distinctions. 
Sclater’s name prostheleucus will therefore sink into a synonym of 
Dr. Cabanis’s older name. 
7. THRYOTHORUS RUFALBUS, Laft. 
T’. longirostris, Lawr. (nec Vieill.) l. ¢. vii. p. 320. 
T. rufalbus, Lawr. 1. ¢. viii. p. 5. 
This species ranges from Guatemala to New Granada, Venezuela, 
and Trinidad, specimens from all these localities being, in our opi- 
nion, undistinguishable. 
8. THRYOTHORUS ALBIPECTUS, Cab. 
LT. galbraithii, Lawr. 1. e. vii. p. 320. 
Specimens of this bird from Santa Martha, Cayenne, and Ecuador 
are in our opinion undistinguishable from these examples. It may, 
however, be mentioned that the Ecuador bird so noted by Sclater 
(P. Z. 8. 1860, p. 273) is rather paler in general coloration. On 
the other hand, a slight variation in this respect is noticeable in the 
present specimens, 
