Birds of the Bonin Islands. 99 



Oriole, and doubting Temminck's assertion that it was a 

 Thrush, he decided that it was a Roller, and called it 

 Galgalus amaurotis (Kittlitz, Kupfertafeln zur Naturgesch- 

 ichte der Vogel, p. 8, pi. xii. fig. 1). From 1832 the two 

 species remained confused together until 1884, when the 

 Bonin- Island Bulbul reappeared in ornithological literature 

 under the name of Hypsipetes squamiceps (Meyer, Zeitsch. 

 ges. Orn. i. p. 211). 



The acquisition of twelve examples from Chichi-Shima (or 

 Peel Island), Haha-Shima (or Hillsborough Island, one of 

 the Baily Islands), and Nakondo-Shima (one of the Parry 

 Group) enables me to confirm Dr. Meyer's conclusion that 

 the two species differ both in size and colour. Three females 

 vary in length of wing (from carpal joint) from 4*85 to 

 5*1 inches, and in length of tail from 4*5 to 4'8 inches ; 

 whilst eight males vary in length of wing from 5"1 to 

 5*45 inches, and in length of tail from 4*7 to 5*0 inches. 

 The bill (from frontal feathers) measures in the females 

 •85 inch, and in the males from "85 to 1'05 inch. The tarsi 

 of the females measure "95 inch, and those of the males vary 

 from "95 to 1*05 inch. The colours of the soft parts are 

 described as follows : — " Bill and tarsi slate-grey ; irides 

 light brown." An example of young in first plumage closely 

 resembles the adult, but has the crown uniform brown like 

 the back. 



Cettia diphone. 



The Bonin Bush Warbler was originally described under 

 the name of Sylvia diphone (Kittlitz, Mem. pre*s. a PAcad. 

 des Sciences de St. Petersb. par divers Savans, 1830, p. 237), 

 from examples obtained from the Bonin Islands in 1828. An 

 imperfect example was described in 1884 as having been 

 obtained by Mr. N. Ota on the Bonin Islands (Blakiston, 

 Amended List of the Birds of Japan, p. 56) ; and there is an 

 example in the Pryer Collection, probably from the same 

 source. 



Mr. Hoist has sent three examples from Chichi-Shima 

 (Peel Island) and two from Muco-Shima (one of the Parry 

 Group), collected in May and June. 



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