72 TROGLODYTIDJE. 



In describing the eggs of this species, the La Plata Marsh- Wren, 

 we have only at the present date (1902) the figure given by Thiene- 

 mann (I. c.} and the description of Nehrkorn (I. c.} to guide us. 

 Both these authorities give the egg as thickly spotted, as in the 

 case of our three eggs from the Crowley Bequest, but we have in 

 addition six eggs from Central Chile, from the Berkeley James Col- 

 lection, which are pure spotless white. With this limited material 

 it appears premature to conclude that there are two distinct types. 

 It remains only to describe the three eggs, which are of a regular 

 oval form, rather glossy, the ground-colour pinkish white, thickly 

 speckled, especially towards the larger end, with bright reddish 

 brown. The measurements of all the eggs in the Collection vary 

 from -61 to -69 by from -48 to -52. 



6. Central Chile (Landbeck}. Berkeley James Coll. 



1. Chile. Crowley Bequest. 



2. Santiago, Chile, 24th Oct. (Tr stram Crowley Bequest. 



Coll.}. 



Genus TROGLODYTES, Vieill. 

 Troglodytes aedon, Vieill. 



Troglodytes aedon, Baird, Brewer fy Ridgw. N. Amer. Birds, i. p. 149 

 (1874) ; Salv. fy Oodm. Biol. Centr.-Amer., Aves, i. p. 98 (1880) ; 

 Sharpe, Hand-l. iv. p. 87 (1903). 



Troglodytes domesticus, Sharpe, Cat. Birds B. M. vi. p. 248 (1881). 



The eggs of the American House- Wren are of a broad pointed oval 

 or spheroidal form, glossy and pinkish white, very closely speckled 

 and spotted with reddish brown and lavender. The markings are 

 sometimes so dense that little or nothing of the ground remains 

 visible. Specimens measure from - 6 to -66 in length, and from '48 

 to -52 in breadth. 



5. N. America (Tristr. Coll.}. Crowley Bequest. 



6. N. America (Henshaw Coll.}. Salvin-Godman Coll. 



5. Rhode I., Mass., 2nd June. Salvin-Godman Coll. 

 2. N. America (Smiths. Inst.}. Salvin-Godman Coll. 



1. N. America. Old Collection. 



6. Massachusetts (Henshaw Coll.}. Salvin-Godman Coll. 



2. Maryland (N. Giles : Smiths. Inst.). Princeton University. N.J. 



[E.]. 



Troglodytes parkmanni, And. 



Troglodytes parkmanni, Blakiston, Ibis, 1862, p. 5, 1863, p. 67. 

 Troglodytes aedon, var. parkmanni, Baird, Brewer $ Ridgw. N. Amer. 



Birds, i. p. 153 (1874). 

 Troglodytes parkmanni, Sharpe, Hand-l. iv. p. 88 (1903). 



The eggs of the Western House-Wren resemble those of the 

 closely allied T. aedon. 



1. 49th Parallel (G. M. Dawson). N. Amer. Bound. Comrn. 



1. Fort Carlton, Canada (F. W. Blakis- Crowley Bequest. 

 ton: Tristram Coll}. 



