LIMOSA. 



391 



Palaearctic Black-tailed Godwit. The former is merely a small race of the latter, which Subspecific 

 completely intergrades with its larger ally, as may be seen from the following table : — characters. 



Length of wing 

 Length of tarsus 



L. mdanura. 



9 to 8 in. 

 of to 3 in. 



L. melanuroides. 



8 to 7 in. 

 3 to 2£ in. 



Tail of Black-tailed Godwit. 



LIMOSA MELANURA MELANUROIDES. 



SIBERIAN BLACK-TAILED GOB WIT. 



Limosa melanura magnitudine minore. 



Diagnosis. 



The eastern and western forms of the Black-tailed Godwit completely intergrade. 



Variations. 



Limosa nielanuroides, Gould, Proc. Zool. Soc. 1846, p. 84. 



Totanus melanurus melanuroides (Gould), Seebohm, British Birds, iii. p. 163 (1885). 



Synonymy. 



