( ^21 ) 

 137. Gerygone albigalaris cinerascens Shariic. 



GerygurK diicrascens .Sharpe, Junrn. Liiui. Soc. Loiiil. xiii. p. 4'.I4 (S.K. New (iuiuuii, probably Port 

 Moresby). 



Dr. Sliarpe described (i. dmrascens from a specimen collected by Mr. 0. ('. 

 Stoue iu S.E. New Gniuea, and afterwards {Cat. B. Brit. Miis. iv. ]). 213) identified 

 with it a very bad skin from the Victoria liiver, N.VV. Australia. 



Mr. Tnuney sent a male from Brock's Creek, Northern Territory, shi)t 

 5. viii. 1902 (No. R. 643). "Iris reddish brown, bill and feet black." This 

 .specimen is probably immature, as the throat is not quite white, bnt mixed with 

 yellow feathers. Mr. Robert Hall sent us a male and an unsexed specimen 

 from Derby, obtained in August 19(t0, and we have also a male collected by Cajitain 

 Bowyer Bower in N.W. Australia. These birds are all identical with" Sharpe's 

 (■iiicra.scens. They differ from G. albigalaris albiyularis in being considerably 

 smaller (wing 57 to 58 against 62 to 64 in albigularis), and in the paler, less 

 brownish u])per surface. There is a very distinct greenish olive tinge on the ni)[)er 

 surface in the freshly monlted, but in the worn plumage this disappears more or 

 less, though even in the type it is traceable. 



13s. Poecilodryas cerviniventris (Gould). 



Peimica ? cercinii-ailria Gould, P.Z.S. 18o7. p. 221 (X.W. Australia). 



S, The Brook, 15 miles from Ord Station, W. Australia, I'.i. v. 19i»2 (No 

 R. 420). 



c?, Negri River, E. Kimberley, 22. v. 1902 (No. R. 421). 



?, Carlton Reach, E. Kimberley, 18. vi. 1902 (No. R. 640). 



c? ?, Margaret River, Northern Territory, 13, 14. viii. 1902 (Nos. R. 041, 642). 



3 c?<J, 2 ? ?, Alligator River, September, October 1903 (Nos. 1619, 1620, 

 1G23, 1624, 1625). " Iris dark brown, bill and feet black. Found in watercourses 

 and iu river-beds. 



130. Rhipidura tricolor motacilloides Vig. & Horsf. 



[Muscrnqjit. trmjhii- Vieillot, Nuur. Di,l. iVllhl. Xal. .xxi. p. 4'.l0 (" Timor "—errore. I have 



accepted Amboina as the original locality).] 

 Rhiphlura mulw:ill<ildes Vigors & Horsfield, Tmiis. Linn. Sw: Loud. xv. p. 24.S (Australia). 



I have examined a good series of Australian skins, and find that they all differ 

 at a glance— one can even feel the difference in the dark, as for example on a foggy 

 November day in London — in having very much smaller bills, and also a little 

 smaller size generally. It is strange that this striking ditference has not 

 been more emphasised. On the other hand, I cannot find any constant differences 

 to separate a supposed western smaller race in Australia (p/cata). 1 must there- 

 fore unite all Australian birds under the name /{/n'/j/i/nra tricolor motacilloides. 



? ad.. Flora Valley, E. Kimberley, \V. Australia, 9. v. 1902 (No. R. 417). 

 "Iris brown, bill and feet black." 



? ad.. Soda Springs, Kimberley, 24. iv. 1902 (No. H. 41s). 



c?, Eureka, Northern Territory, 3. ii. 1903 (No. 1118). 



?, South Alligator River, 1. iv. 1903 (No. 1249). 



J, 20 miles west of South Alligator River, :!o. iv. I'.i03 (No. 124.S). 



¥, Alligator River, 9. ix. 1903 (No. 159.5). 



