372 Mr. P. L. Sclater on the 



A. B. p. 134; Scl. et Salv. Ibis, 1860, p. 275 (San Gero- 

 nimo) ; Salv. Ibis, 1861, p. 62. 



Icterus sclateri, Cassin, Pr. Ac. Sc. Phil. 1867, p. 49 ; Scl. 

 et Salv. Nomencl. p. 36. 



Similis prsecedenti, sed crassitie minore et rostro multo de- 

 biliore, cauda quoqiie albo terminata, ut videtur di versus; 

 interscapulio in mari adulto, sicut in sp. praecedente, 

 omnino nigro. 

 Hab. Guatemala, San Geronimo {Salvin). 



33. Icterus formosus. 



Icterus for mo sus , Lawr. Ann. Lye. N. Y. x. p. 184, et Bull. 

 U.S. Nat. Mus. no. 4, p. 23. 



Similis I. sclateri, sed crassitie minore, colore saturatius 

 aurantiaco, rostro magis incurvo, et interscapulii plumis 

 ad basin grisescenti-albis (teste Lawrencio) di versus. 



Hab. Teliuantepec [Sumichrast) . 



Mus. S.-G. 



Messrs. Salvin and Godman^s three specimens of this 

 species (wlych are the only examples that I have seen) consist 

 of two young males and a female, in which stage they are very 

 like the corresponding forms of /. sclateri. I must say that 

 I am not quite convinced of their distinctness, especially as 

 the fully adult /. sclate?'i has a very deep orange plumage*. 



34. Icterus pectoralis. 



Psarocolius jicctoralis, Wagl. Isis, 1829, p. 755. 



Icterus pectoralis, Bp. Consp. p. 435 ; Sclater, P. Z. S. 1857, 

 p. 205 ; Ibis, 1873, p. 373 (Nicaragua); Cat. A. B. p. 134; 

 Sclat. et Salv. Ibis, 1859, p. 20, et Nomencl. p. 36 ; Lawr. 

 Bull. U.S. N. M. no. 4, p. 23 ; Cassin, Pr. Ac. Sc. Phil. 1867, 

 p. 48 ; Des Murs, Icon. Orn. pi. 10. 



Icterus guttulatus, Lafr. Mag. de Zool. 1844, pi. 52 ; Cab. 

 J. f. O. 1861, p. 9 (Costa Eica). 



Icterus jjectoralis espinachii, Nutting, Proc. U.S. Nat. Mus. 

 1882, p. 392 (Costa Rica) . 



Aurantiaco-flavus ; interscapulio, cauda, loris et gutture medio 

 producto cum maculis j)ectoralibus nigris ; alis nigris 



* Mr. Ridgway has just sent me for examination one of Mr. Lawrence's 

 types oi J. formosus (auult male), which I must confess I cannot clistin- 

 ouish from I. sclnferi.— July 6th, 1883. 



