ANATOMY OF THE SHOE-BILL. 



671 



xn. Balceniceps, as in Stovks, Herons, Scopus, and most Steganopods. 

 The absence, however, is not of much vakie ; the slip is present 

 in some Steganopods, in Spoonbills, in Phoenicopterus, and is 

 present or absent within the same family in a number of cases, 



Deltoides pro2K(,tagialis (text-fig. 126, Del. pat.). 



I have already mentioned that there is no biceps propatagialis. 



Text-fig. 126. 



Deim 



Btc. - 



Patagial muscles and tendons of Salceniceps. 



Del.m. Deltoides major. Anc. AnconaBus scapularis. Hum. Humerus. Bic. 

 Biceps. Del.pat. Deltoides i^ropatagialis. Pec. Pectoralis major cut across. 

 P.l. Pectoralis slip to longus tendon. P.b. Pectoralis slip to brevis tendon. 

 Lon. Longus tendon. Brev. Brevis tendon with the slips named a, /3, and 

 y by Fiirbringer. Ex. Extensor metacarpi radialis. 



