;56 



MESSRS. SCLATER AND SALVIN ON NEW [Apr. 4, 



about two thirds of its distance from the base : at about half an inch 

 from the extremity it is still further reduced by more than one half, 

 and at the same time curved gently outwards. The second primary 



Fig. 2. 



Primaries of Lathria tiropggiaUs, from inside, 

 is very similar to the first, and nearly of the same length. The 

 third, fourth, and fifth are still more abnormally attenuated, and - 6 

 inch shorter than the first two. They are nearly of equal length ; 

 but the third is slightly shorter than the fourth, and this than the 

 fifth. The sixth primary is rather more normal in appearance, and 

 a little longer than the fifth. The seventh, eighth and ninth are 

 nearly equal in length and, next to the first and second, the longest 

 in the wing. They are pointed at their extremities and but slightly 

 turned outwards. The tenth and last primary is normal throughout : 

 except at the end, which is pointed ; its outward curve is very slight. 

 Besides this abnormality, the inner web of each primary is slightly 

 turned upwards along its margin, so as to clasp the shaft of the next 

 succeeding primary when the wing is expanded. The barbules, also, 

 of the outer webs of the primaries from the fourth to the seventh 

 inclusive, terminate in fine filaments. 



This structure is the same in two specimens of this singular bird, 

 which arc, no doubt, males. In another, which we take to be a 



