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MOCKING WATER-CHAT. 
Fluvicola nengeta, Swains. 
PLATE VIII. 
Upper plumage, breast, and tip of the tail, cinereous ; wings 
and tail black ; primary quills with a band of pure whits 
at their base ; ears and maxillary stripe varied with grey 
and black ; throat and body beneath, white. 
Lanius nengeta, Linn. Auct . — Muscicapa polyglotta, Spix, ii. 
PI. 24. 
I believe that this common bird is one out ot 
three species, of three different genera, that com- 
pose the Lanius nengeta of Dr. Latham and his 
followers. One of these appears to be the Grey 
Pie of Edwards, Plate 318, which is unquestionably 
a mocking thrush of the genus Orpheus ; the se- 
cond is some species of true Shrike ( Lanius ) found 
in Russia ; and the third is the present bird. Dr. 
Latham has still further generalized his ideas of his 
Lanius nengeta, by actually placing with it, as va- 
rieties, two other species of true Lanius, one of 
which we have elsewhere shown to he nominal. 
To unravel such a complication of errors is next to 
an impossibility ; they meet us in every page of our 
