Recently published Ornithological Works. 563 



Cettia cantans and C. cantillans. Mr. Seebohm, who united 

 these species in vol. v. of the ' Catalogue of Birds in the 

 British Museum/ informs us that he had already separated 

 them in his collection. The existence of two forms, appa- 

 rently differing only in size and having the same geographical 

 distribution^ is worth of remark. 



104. Blasius on Birds from the South-east of Borneo. 



[Vogel von Borneo, im Siidosten der Insel gesammelt von Herrn F. J. 

 Grabowsky. Verzeichuet uud mit Bezugnahine auf die gesammte Vogel- 

 fauna der Insel besproclien von WUhelm Blasius. Verb. k.-k. zool.-bot. 

 Gesell. Wien, 1883, pp. 3-92.] 



After enumerating the publications relating to the orni- 

 thology of Borneo since Salvadori^s well-known Catalogue of 

 1 874;, Dr. Blasius proceeds to consider the 69 species of birds 

 obtained by Herr Grabowsky in the south-east of that great 

 island. None of them are absolutely new to science; but 

 there appears to be a constant variety of Chotorea versicolor 

 peculiar to Borneo^ which may subsequently receive specific 

 distinction. Three species in this collection {Prionochilus 

 percussus, Lanius magnirostris , and Hydrochelidon leucoptera) 

 had not previously been recorded as occurring in the island, 

 and about seven others had hitherto been found only in the 

 northern district. 



105. Blasius on Birds from Ceram. 



[On a Collection of Birds from tlie Isle of Ceram, made by Dr. Platen 

 in November and December 1881. By Dr. Wilhelm Blasius, C.M.Z.S., 

 P. Z. S. 1882, p. 697.] 



This collection, made during a stay of nearly four weeks 

 at Lokki, contains only forty-nine specimens belonging to 

 twenty-one species ; but amongst them are two examples, 

 male and female, of Monarcha inornatus, which is new to 

 Ceram, whilst several others call forth interesting observa- 

 tions. As in the case of Dr. Platen^s former collections from 

 Borneo, full details are given respecting dates, localities, and 

 colours of soft parts. 



