1891.] 



ANATOMY OF THE KAGU. 



21 



to me, as they have seemed to Fiirbringer, to indicate a certain 

 degree of relationship in this direction. The muscular anatomy as 

 a whole is decidedly Crane-like, as will be seen by the following table, 

 which shows some of the resemblances and differences between the 

 Cranes, Herons, and Rhinochetus. 





Grus. 



Ehinocketus. 



Ardeidm. 



Ambiens. 



+ 



+ 







Access, fem.-caucl. 



+ 











Peroneus brevis .. 



+ 



+ 







Biceps slip 



-f 



Qi 







Vinculum between 

 ilex. hall, and 

 ilex. prof. 



Strong, attached 

 before trifurca- 

 tion of ilex, 

 prof. 



Strong, attaclied 

 before trifurca- 

 tion of flex, 

 prof. 



Weak or absent. 



Semitendinosus ... 



Inserted in com- 

 mon with ten- 

 don of semi- 

 membranosus. 



Inserted in com- 

 mon with ten- 

 don of semi- 

 membranosus. 



No insertion on 

 to femur. 



Tensor patagii 

 brevis. 



A tendinous slip 

 running from 

 insertion diag- 

 onally across 

 patagium. 



No such ten- 

 dinous slip. 



Tendinous slip 

 present. 



Expansoi- secun- 

 dariorum 



+ 



+ 



Absent in some. 





At the same time the absence (?) of a biceps slip to the patagium 

 and the presence of a peculiar additional biceps muscle are peculiar- 

 ities which mark off Rhinochetus from other Crane-like birds. 



The syrinx is not specially like that of the Herons ; it is perhaps 

 more like that of Gariama than other types, but is also like many 

 other Gralline birds. "With regard to the special affinities between 

 Rhinochetus and Eurypyga they are evidently very close ; but I pro- 

 pose to defer the consideration of these until I have an opportunity 

 of adding to my notes upon Eurypyga. 



^ I could not find the biceps slip in my specimen, but as I have since found a 

 MS. note by Grarrod affirming its presence, I have possibly failed to see it. 



