84 MIMIDJ5. 



colour and markings, than ordinary eggs of 31. polyglottiCs. They 

 measure from 1-03 to 1-1 in length, and from "75 to "85 in breadth. 



7. Argentine Eepublic. Crowlev Bequest. 



6. Argentine Eepublic, Oct. A. H. tlolland, Esq. [C.]. 



1. Uruguay, 22nd Oct. O. V. Aplin, Esq. [P.]. 



2. Uruguay, 15th Nov. O. V. Aplin, Esq. [P.]. 



1. Uruguay. 0. V. Aplin, Esq. [P.]. 



Mimus gilvus ( VieilL). 



Mimus gracilis, Owen, Ibis, 1861, p. 60, pi. ii. fig. 2. 



Mimus gilvus, Scl. ^- Sain. P. Z. S. 1879, p. 492 ; Salv. Sf Godm. Biol. 



Cenfr.-Amer., Ares, i. p. 36 (1879) ; S/ua-jie, Cat. Birds B. M. vi. 



p. 350 (1881) ; Nehrk. Kat. Eiersamml. p. 49 (1899) ; Shmye, 



Hand-l. iv. p. 104 (1903). 



The eggs of the Graceful Mocking-Thrush resemble very closely 

 those of A[. pohjgJottus, but one set of three from Grenada differs 

 BO much from the ordinary type that it deserves special mention. 

 To begin with, the eggs are all of a verj' long pointed oval form : 

 each differs strikingly from the others, the first being of a very clear 

 pale blue with only the faintest trace of yellowish-brown spots ; the 

 second is densely freckled all over with tiny specks of pale reddish 

 brown, more so oven than in the case of the iirst type of M. thenca 

 already described ; while the third e^g has larger and less numerous 

 spots, allowing more ground-colour to be seen and thereby approach- 

 ing the ordinary type. The other set from Grenada is a handsome 

 one, the eggs being boldly marked and the colouring of the blotches 

 a rich red-brown. They measure from -92 to I'l in length, and 

 from "70 to -79 in breadth. 



3. Grenada, W. Indies [J. G. JVelh), Crowley Bequest. 

 3. Grenada, .3rd July (J. G. W.). Crowley Bequest. 



2. St. Vincent, W. ladies, May Salvin-Godman Coll. 



[Mrs. D. W. Smitft). 



1. Yucatan. Crowley Bequest. 



2. San Geronimo, Guatemala, Mav Salvin-Godman Coll. 



{R. Owen). 



3. San Geronimo, 30th May {JR. 0.). Salvin-Godman Coll. 

 1. San Geronimo, May (B. O.). Crowlev Bequest. 



1. Medellin, Antioquia, U.S. Colombia Salvin-Godman Coll. 

 (7'. A". Salmon). 



Genus OREOSCOPTES, Baird. 



Oreoscoptes montanus (Townsend). 



(Plate IV. fig. 14.) 



Oreoscoptes montanus, Coues, Birds N.- West, p. 7 (1874) ; Baird, Brewer 

 ^- Bidgtr. N. Anier. Birds, i. p. 32 (1874) ; Coues, Birds Color. Vail. 

 p. 48 '(1878) ; Skarpe, Cat. Birds B. M. vi. p. 333 (1881) ; Nehrk. 

 Kat. Eiersamml. p. 48 (1899) ; Shar^^e, Hand-l. iv. p. 106 (1903). 



The eggs of the Mountain Mocking-Thrush, or Sage-Thrasher, 

 have a very striking and handsome appearance. They are of a 



