362 MESSRS. P. L. SCLATER AND O. SALVIN [June 28, 
of Momotus castaneiceps, which frequents the Motagua Valley, quite 
a distinct district in every respect. As M. Delattre also collected 
at Panama, it is quite possible that an error may have been made. 
160. Pipra mMenTALts, Sclater ; Lawr. J. c. vii. p. 296. 
Head rather deeper red, and throat rather less yellow, than in Vera 
Paz specimens. 
161, Prera cyANEOCAPILLA, Hahn; Lawr. J. c. vii. p. 296. 
Plumage blacker, and head of a rather brighter blue, than in spe- 
cimens from the Peruvian Amazon. 
162, CuHIROXIPHIA LANCEOLATA (Wagl.); Sclater, Cat. p. 251. 
C. caudata, Lawr. (nec Shaw) J, ¢. vii. p. 296. 
Agrees with New Granadian specimens. A little further this 
species is replaced by the very distinct C. linearis of Costa Rica, 
Nicaragua, and the Pacific coast of Guatemala. 
163. CHIROMACHARIS VITELLINA (Gould); Lawr. 7. c. 1861, 
p. 296. 
164. QuERULA cRUENTA (Bodd.); Sclater’s Cat. p. 257; Lawr. 
J, ¢. vil. p. 296. 
Agrees with southern examples. Other species of this family 
recorded as from Panama by Mr. Lawrence are— 
Tityra albitorques. 
Pachyrhamphus cinnamomeus. 
homochrous, Lawr. 
Lipaugus albogriseus, Lawr. 
Heteropelma vere-pacis, Scl. & Salv. 
Cotinga amabilis, Gould. 
Ordo FISSIROSTRES. 
Fam. Momorip. 
165. Momorvus tessoni, Lesson. 
All the Motmots of this form require a careful examination, which 
will probably lead to the union of several obscure forms which are 
barely recognizable. This is eminently the case with the so-called 
species M. lessoni, M. psalurus, M. microstephanus, and M. sub- 
rufescens. 
166. PRIONIRHYNCHUS PLATYRHYNCHUS, Leadb.; Scl. P. Z.S. 
1857, p. 256. 
Crypticus platyrhynchus, Cassin, Proc. Acad. Phil. 1860, p. 136 ; 
Lawr. /. ¢. vii. p. 290. 
We have had no opportunity of comparing this bird with speci- 
mens from the Amazon valley, where it also seems to occur. 
