Mr. R. F. Tomes on the Structure of the Bearded Titmouse. 317 



94. Dominican Grebe. {Podiceps dominicus.) 

 I saw several small Grebes on the crater lagoon in Tigre 

 Island, and shot two of them. The larger measured 8|^ inches 

 in length. Irides yellow ; legs and feet dark lead-colour ; upper 

 surface of body nearly black; chin white; breast reddish; 

 primaries white, edged with dark. The other one, killed by the 

 same shot, was smallci', and probably a female. 



Appendix. 

 The following birds were omitted in their proper places : — 



1. American Meadow Lark. {Sturuella luduviciana.) 

 The only place where I noticed this bird was in the open 



grassy plain near Siquatepique, where they were abundant. 

 AVhen running among the grass they appear like Quails [Coturnix 

 dactylisonans), especially when they stop and raise their heads — 

 a common practice when approached within a short distance. In 

 the United States I have found these birds difficult of approach, 

 but here they were tame enough. 



2. Hooded Wren-creeper. {Campylorhynchus capistratus.) 

 I saw a small colony of these birds preparing their nests in 



some low bushy trees with large trunks growing by the side of 

 a stream on the Pacific Slope. I did not observe them else- 

 where. 



The Parrot mentioned (p. 121) as much resembling Chry- 

 sotis auripalliata, is Chrysutis xanthops. 



The large Hawk spoken of as " possibly Buteo cequinodialis" 

 (p. 226) was probably a Urubitinga. 



XXXIX. — Remarks on the Internal Structure of the Bearded 

 Titmouse (Calamophilus biarmicus). By Robert F. Tomes, 

 C.M.Z.S. 



The little bird which forms the subject of the present com- 

 munication is one of those, the precise affinities of which are 

 somewhat obscure. It appears by common consent to have been 

 classed with the Tits [Parus), amongst which, or rather perhaps 

 aj)])endcd to them, we find it in most works on ornithology. 

 The names of Tcnniiinck, Bonaparte, YarrcU, Schlegol, G. R. 



