218 MR. 0. SALVIN ON THE BIRDS OF VERAGUA. [ Mar. 24, 
196. OponTopHORUS MARMORATUS, Gould; Sel. & Salv. P. Z.S. 
1864, p. 371. 
Bugaba, 
Agrees with Panama specimens. 
197. OponTropHoRvus GuTTATUS, Gould. 
V. de Chiriqui. 
Tinamus robustus. 
Bugaba. 
198. Cryprurus MESERYTHRUS, Scl.; Scl. & Salv. Ex. Orn. 
p- 93, t. 47. 
Chitra. 
199. ARDEA CHRULEA, L. 
Castillo. 
200. EGreTTA CANDIDISSIMA (Gm.). 
Castillo. 
201. BuroripEs viRESCENS (L.). 
Chitra ; Calobre. 
202. TiGRISOMA CABANISI, Heine; Scl. & Salv. Ex. Orn. p. 95, 
t. 48. 
Laguna del Castillo. 
203. CANCROMA COCHLEARIA, L. 
Mina de Chorcha. 
Eurypyga major. 
Cordillera del Chucu ; V. de Chiriqui. 
Parra melanopygia, Scl. P. Z. 8S. 1856, p. 283. 
Calobre ; Castillo. 
204. Parra HYPOMELENA, Gray & Mitch. Gen. B. t. 159; Sel. 
P. Z. S. 1856, p. 283. 
Calobre. 
Both these species have been sent by Arcé. They are much more 
nearly allied than appears at first sight. Some specimens of P. hypo- 
melena show purple-brown feathers on the back, and thus indicate 
a tendency to the assumption of an intermediate state of plumage 
leaning towards P. melanopygia. 1 think it probable that a large 
series of specimens would show every gradation of plumage between 
P. hypomelena and P. melanopygia, including also P. intermedia 
(described in Sclater’s paper, J. ¢.). 
In Costa Rica the true P. gymnostoma, Wagl., occurs, which may 
at once be distinguished by the frontal caruncle being divided poste- 
riorly into three lobes, and by the total absence of the rictal caruncle. 
