496 NOTES. 



throat, front and sides of neck are still white ; the posterior 

 half of the crown, occiput, and nape are dull, dusky brown; 

 one feather only on the crown being black ; a blackish mark 

 in froni of the eyes, and the posterior portion of the ear-coverts 

 blackish dusky ; the base of the neck all round still white. 

 This specimen is distinguished at once from Sterna nigra, the 

 immature birds of which it more closely resembles than those 

 of any other species, by the black axillaries and wing-lining. 

 In nigra the wing-lining is a sort of pearly grey. 



It is almost needless to remind my readers that all three 

 species, hyhrida, Pall., nigra, Lin., and the present species, 

 leiicoptera, (generally separated under the sub-genus Hydroclie- 

 Lidon) are distinguished from all the other Terns by their long, 

 slender, and imperfectly-webbed toes, coupled with short, 

 square, or somewhat rounded tails. When I say " imperfectly- 

 webbed," I mean that the membrane connecting the central 

 toe with the two lateral ones is so deeply -scolloped out or 

 emarginate that very little of it remains. 



Further particulars of this present species, will be found 

 " S. F.," VIL, 445. 



Another species has, apparently, to be added to our Indian 

 list. My friend Mr. Garney writes to me : — " You will be 

 interested in bearing that Whitely of Woolwich, a reliable 

 dealer, has received from the Nicobar Islands two specimens 

 of Microhierax latifrons, lately figured in the Ihis from a 

 Bornean specimen. It is curious that the bird should have 

 turned up in these two places only j but there is no doubt as 

 to the Bornean locality, and there seems to be none as to the 

 Nicobars. 



" Of the two Nicobar specimens, one has been secured for 

 the Norwich Museum, and the other has gone to Count Turati 

 at Milan. 



" I think it is an undoubtedly good species, and have seen 

 both the old and the young.^^ 



This species, the White-crowned Falconet, is figured in the 

 Ihis of the present year, PI. VII. 



It is extremely like jfringillarius, but is distinguished at 

 once by having nearly the entire crown, as well as the forehead, 

 white. 



Mr. Sharpe, who named the species, furnishes the following 

 brief description of, and remarks in regard to it, Ibis^ 1879, 

 p. 257 :-^ 



