OORACI^ 



218 



tematic position of the bird) ; they measure about one-third 

 of an inch. The cssca are narrowed at their origin from the 

 gut, and, as in the owls, &c., dilated apically. The deep plantar 

 tendons vary from the arrangement common to the group in 

 that the slip to the hallux is given off before the blending of 

 the two. The arrangement, in fact, is as in the motmots. 

 There is an expansor secundariorum ceasing at the axillary 

 margin of the teres, in the gallinaceous fashion. The syrinx 

 has at the middle a bony box, which is formed of three or four 

 bronchial rings united with about two tracheal rings. It is 



Fig. 98. — Foot of Todus (after 

 FoEBEs). The Digits and the 

 Phalanges aee numbeeed. 



Fig. 99. — Foot of Momotus 

 (aftee Forbes). Letters 

 as in Fig. 98. 



only ventrally that the fusion is complete. The intrinsic 

 muscles cease at the last tracheal ring but one. 



The Galbulidae are a family of neotropical birds, com^ 

 prising the genera Galbula, Urogalba, Jacamerops; &c., and 

 known as puff birds. 



They are zygodactyle, with a nude oil gland, twelve rec- 

 trices, and a small aftershaft. 



The pterylosis of Galbula rufoviridis is as follows : — 



The inferior tract is double from the angle of the jaw ; 

 just before leaving the neck each tract gives off a short 

 branch, about six rows of two feathers, which runs on to the 



