1873.] 



CERTAIN MUSCLES OF BIRDS. 



639 



Anser segetum. 

 Bernicla canadensis. 

 Chloephaga, sp. 

 Cygnus nigricollis. 



buccinator. 



coscoroba. 



Dendrocygna autumnalis 



viduata. 



fulva. 



Species examined. 



Tadorna rutila. 

 A'ix galericulata. 

 Mareca penelope. 

 Dafila spinicauda. 

 Querquedula crecca. 

 Metopiana peposaca. 

 Fuligula cristata. 

 Mergus castor. 

 Mergellus albellus. 



The Columbce possess the femoro- caudal, the semitendinosus, the 

 accessory semitendinosus, and the postacetabular portion of the tensor 

 fasciae ; the accessory femoro- caudal is present in all but Lopholtemus 

 antarcticus. The ambiens may be present or absent ; and this 

 feature is probably a subfamily character. 



The ambiens is present in : — 



Pterocles alchata. 



. armaria. 



Lopholcemus antarcticus. 

 Columba anas. 



livia. 



leucocephala. 



picazuro. 



maculosa. 



vinacea. 



Turtur. senegalensis. 



aldabranus. 



Chalcopelia chalcospilos. 



The ambiens is absent in : — 

 Goura coronata. 



victories. 



Geopelia striata. 



placida. 



cuneata. 



humeralis. 



Chamcepelia talpacoti. 

 Metriopelia melanoptera. 

 Tympanistria bicolor. 

 Leptoptila jamaicensis. 

 Chalcophaps chrysochlora. 

 Ocyphaps lophotes. 

 Phaps chalcoptera. 

 Carpophaga globicera. 



csnea. 



Calcenas nicobarica. 

 Didunculus strigirostris. 



Ptilonopus melanocephalus. 



marice. 



Treron calva. 

 Phlogcenas cruentata. 

 Starncenas cyanocephala. 



The Gallincs possess the ambiens, the accessory femoro-caudal, 

 the semitendinosus (large), the accessory semitendinosus (large), and 

 the postacetabular portion of the tensor fasciae (large) ; the femoro- 

 caudal is well developed in some, small in some, and absent in a few. 

 An asterisk is placed by the name of those in which it is absent. 



Species examined. 

 TetraonidjE. Francolinus ponticerianus. 



Tetrao urogallus. gularis. 



tetrax. clappertonii. 



Phasianid^e. 

 Francolinus vulgaris. 

 afer. 



Arboricola torqueola. 

 Perdix cinerea. 

 Coturnix communis. 

 Rollulus coronatus. 



