660 Mr. R. Shelfbrd o/i the Pterylosis of the 



Carpal retnex S^- covert are present : the former is very imicli 



smaller than the latter, which is not 



readily distinguishable from the tect. 



majores of the cubitus. 

 Cubitus. 



Cubitals. ll'. Decreasing in size from before backwards, 



Nos. 11 and 12 being quite minute. 



Tectrices majures. Proximally continuous with the para- 

 pteron. 



Tect. medise. H + l which belongs to the ala spuria: 



that is, the series commences by just 

 one member in front of the tect. 

 majores, and terminates by just one 

 member short of it, and there is a 

 broad gap between the two series. 



Tect. minores. 10+2 which belong to the ala spuria. 



1 can distinguish only one row. 



Tect. margiuale.^i. Distally one row, which is short and 

 composed of 9 units only, behind 

 the 3rd unit the second row begins ; 

 this is composed of 12 units: behind 

 its 4th unit the third row begins and 

 runs along the anterior border of the 

 patagium to join the pt. humeralis. 



Ala spuria 4 trichoptiles, in addition to those already 



alluded to as constituting the distal 

 members of the t, media3 and t. minores. 

 Innkr Aspect. 



Manus A few minute points, the forerunners of 



the t. minores inf. 

 Cubitus Nothing as yet has made its appearance. 



The egg-tooth is still prominent; the eyes are not yet 

 opened. The foot now more nearly approximates in appear- 

 ance to that of the adult ; the second digit is the shortest, 

 the third the longest, and the claw on the hallux is now seen 

 to be a trifle longer and less curved than those on the other 

 toes. The tarso- metatarsus is covered Avith transverse scutes, 

 those on the dorsal surface being the larger and more dis- 

 tinct ; each digit is dorsally covered with one row of transverse 

 scutes, which laterally pass more or less abruptly into the 

 reticulated surface of the planta. 



Stage 3 (PI. XIII. C, and figs. 4, 5, p. 661).— A nestling 

 with a total length of 145 mm. is taken as typical of this 



