THE BIRDS OF THE JUAN FERNANDEZ ISLANDS 5 



Dauthi^nay. Smaller wing-coverts a little more brownish, greater coverts 

 blackish, broadly margined with a dark shade of raw umber; bend of the wing 

 white. Primary coverts black, the outermosts broadly edged with isabelline, or 

 brownish white. Primaries blackish brown with obsolete paler edgings, the 

 fourth and fifth with a broad band of pale cinnamon (Orerthur and Dau- 

 THliiNAY 323,1) across the inner web; on the sixth and following, except the 

 innermost secondaries, this band extends over the outer web as well, at the 

 same time assuming a brighter, more saturated cinnamon colour (323, 2 or 3). 

 Distally of this cinnamon band there is a broad band of pure black, which 

 again distally is contrasted by the edges, here brown, of the corresponding quills. 

 Inside the cinnamon band the four innermost secondaries are black, edged with 

 sepia like the back. On the lower side of the wing the cinnamon band appears 

 white. Under wing-coverts white along the edge of the wing, otherwise mixed 

 with ashy grey; axillaries white. A superciliary stripe of white or creamy 

 white extends from the base of the bill to the nape; it is broader and more 

 conspicuous behind the eye. Ear-coverts like crown, but partly with whitish 

 shaft-stripes. Throat and fore-neck white, but the feathers tipped with grey, 

 so that a mottled or scaly appearance is produced. Upper breast light grey, 

 almost paler than »mouse-colour» (O. and D. 360,1) with a creamy white spot 

 on each feather. Anteriorly these spots are more roundish, but change into 

 hght shaft-stripes further down the breast. In some specimens this striped 

 pattern extends further down on the lower breast as well, in others the centre 

 of the lower breast is whitish like the centre of the belly in all. Flanks brownish 

 grey or brownish ash. Crissum about similar, but all feathers edged and tipped 

 with whitish and often with narrow light shaft-stripes. Tail black, the two outer 

 tail-feathers tipped with cinnamon, which colour on the outermost extends half 

 the length of the quill. 



Length of wing in males: 90, 89, 88,5, 87,5 mm. 



» » » » females: S6, 85, 86 mm. 



» » » » male from Masatierra: 89 mm. 



» » culmen » males: 17, 17, 16,5, 16,5 mm. 



» » » » females: 16,5, 17, 16,5 mm. 



» » » » male from Masatierra: 17 mm. 

 The specimen from Masatierra is similar to the others. 



If this description of the Cinclodes from Juan Fernandez is compared with 

 Scott's original diagnose of C. oustaleti and the additional notes of Hellmayr, 

 a certain discrepancy is to be seen. Firstly, ScoTT says about C. oustaleti 

 »pileo dorso concolori*, which does not hold good for the present series of 

 birds from Juan Fernandez. The same is also the case with Hellmayr's sta- 

 tement: » uniform rufousbrown crissum*, or the corresponding one of the author 

 quoted and of M^N^GAUX (Bull. Soc. d'hist. nat. d'Autun. Vol. 19, p. 62): 

 »les souscaudales d'un brun roussatre uniforme». Scott's description of the 

 lower side of C. oustaleti, viz. »subtuS chocolatino-brunneus, nee grisescens et 

 minus distincte striatus», is also not quite suitable for the Juan Fernandez bird. 

 As the latter, however, nearly agrees with C. oustaleti with regard to size, 

 white axillaries & ca., I think it most convenient to regard the insular form 



