ALCEDINES 



199 



slip absent, but the wristward slip is hardly shown. There 

 is a fleshy pectoralis propatagialis joining the longus tendon. 



In Geryle alcyon the two tensor brevis tendons form a 

 broad diffused tendon, to which is joined, before it gives off 

 the wristward slip, a peculiar long (hornbill-like) pectorahs 

 propatagialis tendon. 



In Alcyon Lessoni we have the most simple form of 

 tensor brevis without any branch. 



Fig. 92. — Teksokes PATAon 

 OF Ceryle alcyon. 



Fio. 93. — Tensobes 

 Patagii op Oallal- 

 cyon rufa. 



Fig. 94. — TensobUs Patagh 

 OP Sauropatis albicilla. 



In Syma the tensor brevis consists of two tendons, but 

 the anterior has no wristward slip at all. 



There is never a biceps slip. The deltoid has a scapular 

 slip. 



The expansor secundariorum appears sometimes to be 

 absent. But it is present in Dacelo, Tanysiptera, Syma, and 

 Cittura. Dacelo, at any rate, has no humeral slip to the 

 anconcBus. 



The leg muscle formula is, without exception, AX — . 



In Dacelo there is but one peroneal, which is the brevis. 



The deep flexor tendons vary somewhat. In Dacelo 

 gigantea the arrangement of these tendons is, as Professor 



