BUCCO. 515 
2. Bucco pectoralis. 
Bucco pectoralis, Gray, Gen. Birds, i. p. 74, t. 261; Scl. P. Z. 8. 1855, p. 196°; Mon. Jacamars and 
Puff-birds, p. 75, t. 24°; Cat. Birds Brit. Mus. xix. p. 184‘; Lawr. Ann. Lye. N. Y. vil. 
p- 464°; Scl. & Salv. P. Z. S. 1864, p. 363°; 1879, p. 536"; Wyatt, Ibis, 1871, p. 374°. 
Supra chalybeo-niger, nitens, dorso medio, uropygio et tectricibus alarum stricte albo fimbriatis; capite toto 
summo (fronte inclusa), capitis lateribus et pectore lato pure chalybeo-nigris; tectricibus auricularibus, 
torque cervicali postica, gutture toto et abdomine albis, hypochondriis albis nigro transfasciatis; cauda 
nigricante ; rostro nigro, pedibus nigricantibus. Long. tota 7-7, ale 4:0, caudee 3°2, rostri a rictu 1°6, 
_ tarsi 0-7. (Descr. maris ex Lion Hiil, Panama. Mus. nostr.) 
© mari similis. 
Hab. Panama, Lion Hill (I‘Leannan®°), Chepo (Arcé).—CotomsBia7 8, 
This Bucco was for many years known only from the plate in Gray and Mitchell’s 
‘Genera of Birds,’ taken from a specimen in the British Museum from an unknown 
locality and acquired in 18431. It was not until M‘Leannan began to explore the 
Isthmus of Panama along the Railway Line that fresh information concerning the bird 
came to light through specimens sent to Lawrence and to us. Arcé obtained us a 
single example during a short visit to Chepo on the Rio Bayano, south of Panama, but 
he never came across it during his subsequent journeys between Panama and Chiriqui. 
From the mainland of Colombia we have two records of the species, for Mr. C. W. 
Wyatt met with it in the dense forest situated between Naranjo and the Magdalena 
river 8, and Salmon found it at Nichi in the Cauca Valley 7. It will thus be seen that 
the range of Bucco pectoralis is very restricted. 
As a species this Bucco is quite distinct from B. dysont and its allies; this is readily 
seen not only by its smaller size, but by the white throat being surrounded by black on 
the sides of the neck, the wholly black forehead, and the conspicuous white ear-coverts, 
which are connected by a white band round the back of the neck. According to 
Mr. Wyatt the iris is brown ®. 
3. Bucco subtectus. 
Bucco subtectus, Scl. P. Z.S. 1860, p. 2961; Mon. Jacamars and Puff-birds, p. 83, t. 27°; Cat. 
Birds Brit. Mus. xix. p. 186°; Scl. & Salv. P. Z.S. 1864, p. 363*; 1879, p. 536°. 
Bucco tectus, Lawr. Ann. Lyc. N. Y. vii. p. 318°. 
Supra niger, fronte et pileo antico albo punctatis, plaga scapulari utrinque alba: subtus albus, torque pectorali 
et stria infra oculos nigris, hypochondriis albis nigro variegatis ; cauda nigra, rectricibus utrinque quatuor 
externis albo medialiter fasciatis et macula in pogonio interno albo terminatis; rostro nigro, pedibus 
nigricantibus. Long. tota 5:8, alee 2:7, caude 2°3, rostri a rictu 1-1, tarsi 0-5. (Descr. maris ex Lion 
Hill, Panama. Mus. nostr.) 
¢ mari similis. 
Hab. Panama, Veraguas (Arcé), Lion Hill (1 Leannan *°).—Cotomsia°®; W. Ecuapor!. 
SS 
This is a western form of the old Guianan Bucco tectus of Boddaert, the “ Barbu a 
-poitrine noir de Cayenne” of the ‘ Planches Enluminées,’ no. 688, fig. 2, from which it 
may be distinguished by its much narrower black band across the chest. 
BIOL. CENTR.-AMER., Aves, Vol, II., March 1896. 65 
