220 BULLETIN: MUSEUM OF COMPAKATIVE ZOOLOGY. 



54. Troglodytes musculus inquietus (Baird). 

 Five adults, both sexes, May 3 to 19. 



55. Thryophilus rufalbus castanonotus Ridg. 



Twelve adults, both sexes, May 5 to 21. 



56, Thryophilus galbraithii galbraithii (Lawr.). 

 Nine adults, both sexes. May 5 to 22. 



57. Thryophilus modestus elutus Bangs. 

 Three males, two adult, one young, May 5 to 11. 



VIREONIDAE. 



68. Vireosylva flavoviridis flavoviridis Cassin. 



Seven adults, both sexes, May 2 to 8. 



59. Pachysylva aurantiifrons aurantiifrons (Lawr.). 

 Four adults, both sexes, May 4 to 11. 



60. Pachysylva viridiflava (Lawr.). 



Nine adults, both sexes. May 2 to 26. All these have pale bills, while 

 the two skins collected by Mr. Brown in Chiriqui have the bill black ; other- 

 wise the Panama and Chiriqui birds seem to be identical. (See Eidgway, 

 Birds N. and Mid. Amer., Vol. 3, p. 221, foot-note b.) 



HIRUNDINIDAE. 



61. Progne chalybea chalybea (Gmel.). 

 One young male, May 20. 



MOTACILLIDAB. 

 62. Anthus parvus Lawr. 

 Eighteen specimens, adults of both sexes and young. May 9 to 24 



MNIOTILTIDAB. 

 63. Chrysocantor erithachorides (Baird). 



Five adult males. May 17 to 21. All taken in the mangrove swamps, 

 where they were not at all common, and very hard to obtain. 



