100 TURDl])^. 



having the upper parts decidedly russet-brown, darkest on the head 

 and palest on the rump. In the colour of its underparts it does not 

 differ from its near allies ; the legs, feet, and claws are dark. 

 Length of wing 3-03 to 2-9 inches, tail 2-87 to 2-62, culmen 0-84 

 to 0-8, tarsus 1*1 to 1-04. Third primary longest ; second primary 

 equal to or slightly longer than the sixth. 



The West-xlustraliau Great Eeed-Warbler inhabits West Aus- 

 tralia, being a summer migrant only to the south. 



a. Ad. sk. Australia. Purchased. 



9. Acrocephalus australis. 



Sylvia anmdinacea {Linn.) apud Leivin, B. New Holl. pi. 18 (1822). 

 Acrocephalus australis, Gould, B. Austr. iii. pi. xxxvii. (1848) ; 



Diyyles, Orn. Austr. pi. xlvii. tig. 3 (1870). 

 Calamodyta australis (Gould), Gray, Gen. B. i. p. 172 (1848); Gray, 



Hand-l. B. i. p. 208. no. 2943 (1869). 

 Calamoherpe australis {Gould), Bonap. Consp. i. p. 285 (1850); 



Gould, Handb. B. Amtr. i. p. 402 (1865) ; Ramsay, Proc. Linn. 



Soc. N. S. W. ii. p. 186 (1878). 



This species does not differ in any respect from the preceding in 

 colour, and is apparentlj' subject to the same change after the 

 autumn moult. The bill is somewhat shorter ; the legs, feet, and 

 claws are dark brown. Length of wing 3-0 to 2'7 inches, tail 2'7 to 

 2-4, culmen 0-8 to 0-7. Third primary longest; second primary 

 between the fifth and seventh. 



This species is a south-eastern form of A. orientalis, differing in 

 having a more rounded wing. From that species and from A. sten- 

 toreus it differs in being of smaller size (especially in the culmen) ; 

 and from the last-mentioned species it also differs in having a pro- 

 portionally shorter tail. 



The East-Australian Reed-Warbler appears to breed in South- 

 eastern Australia, where it is a migratory bird, arriving in September 

 and retiring north in March during the cold season. 



a, b. Ad. sk. South Australia. Sir G. Grey [P-]- 



c. Ad. sk. N.E. Australia. Sir T. Mitcheh [P.]. 



d. Ad. sk. Lombock. A. R. Wallace, Esq. [G.]. 



10. Acrocephalus syrinx. 



Sylvia syrinx, KiHl. Mem. FAcad. St. Petersb. ii. p. 6, pi. 8 (1835). 

 Sylvia oceanica, '■^ Kiitl. in Mus. Senckenb.," JideFinsch, Journ. Mus. 



Godeffr. xii. p. 30 (1876). 

 Tatare rousserolle, Hombr. et Jacq. Atl. Toy. Pole Sud, pi. 20. fig. 5 



(1853). 

 Tatare syrinx {Kittl), Jacq.et Puch. Voy. Pole Sud, iii. p. 92 (1853). 

 Eparnetes syrinx {Kittl.), Reichb. Nat. Syst. pi. Iviii. (1850) ; Bonap. 



Compt. Rend. 1855, p. 111. 

 Acrocephalus orientahs {T. &■ S.), apud Pelz. Novara-Reise, pp. 63, 



162 (1805). 



