480 Annals of the Carnegie Museum. 



Fifteen specimens: Don Diego. 



While this series shows considerable variation with regard to the 

 extent of yellow on the rectrices, there is no real approach to the char- 

 acters of C. vitellinus or C. flavicrissus. 



The writer has never seen this bird in the vicinity of Santa Marta, 

 and it is very probable that Mr. Brown's specimens were taken else- 

 where. It was abundant at Don Diego, and common also at Dibulla. 

 It is doubtful if it ever goes above 500 feet. As is well known, it 

 breeds in colonies, building long pendant nests like Zarhynchus and 

 Ostinops. The birds are very noisy, and have a bewildering number 

 of notes. 



460. Cacicus vitellinus Lawrence. 



Five specimens : Fundacion and Valencia. 



The occurrence of this species at Fundacion (where, however, it 

 is rare), brings its range to within a comparatively short distance of 

 that of C. cela, with no evidence of intergradation. The present case 

 constitutes a very striking illustration of the faunal differences exist- 

 ing between the north coast of the Santa Marta region on the one 

 hand and the southwestern part, about the Cienaga Grande, on the 

 other. 



461. Ostinops decumanus melanterus Todd. 



Ostinops decumanus (not Xanthomas decumanus Pallas) Salvin and Godman, 

 Ibis. 1879, 200 (San Jose and Atanquez ; syn. ; crit.). — Sclater, Ibis, 1883, 

 151 (" Santa Marta," in range). — Sclater, Cat. Birds Brit. Mus., XI, 1886, 

 315 (Atanquez). — Bangs, Proc. Biol. Soc. Washington, XII, 1898, 177 (Pal- 

 omina). — Allen, Bull. Am. Mus. Nat. Hist., XIII, 1900, 163 (Onaca). 



Ostinops decumanus melanterus Todd, Proc. Biol. Soc. Washington, XXX, 1917, 

 3 (Las Vegas; orig. descr. ; type in coll. Carnegie Mus.). — Apolinar Maria, 

 Bol. Soc. Cien. Nat. Inst. La Salle, VI, 1917, 146 (reprint orig. descr.). — 

 Chapman, Bull. Am. Mus. Nat. Hist., XXXVI, 1917, 625, footnote (ref. orig. 

 descr.; crit.). — Bangs and Penard, Bull. Mus. Comp. Zool., LXIII, 1919, 39, 

 in text (crit.). — Chapman, Proc. Biol. Soc. Washington, XXXIII, 1920, 25. 

 in text (crit.). 

 Additional records: La Concepcion, Chirua (Brown); Fundacion 



(Univ. Mich. Exp.). 

 Twelve specimens : Bonda, Masinga, Masinga Vieja, Cincinnati, 



Las Vegas, Minca, Agua Dulce, and La Tigrera. 



A casual inspection of the series of Ostinops decumanus in the col- 



