Collection of Birds from Northern Borneo. 



367 



able to determine with any certainty whether the rectrices pass 

 from green to blue^ or blue to green ; but in one stage they 

 are certainly blue, which never occurs in C. rufipennis. 



If, on comparison, the Javan Centrococcyx (C. bubutus, Horsf. 

 Tr. Linn. Soc. xiii. p. 180, sp. 2) prove to belong to this species, 

 Horsfield^s title will have precedence. Both Moore and Cabanis 

 unite it with the continental form ; but, judging from Horsfield^s 

 plate and description (Zool. Res., C. philippensis, yav. Javanica), 

 it is the Malayan species or else nearly allied to it. 



Centrococcyx javanensis (Dumont de Ste. -Croix), Diet. Sc. 

 Nat. xi. p. 144, "Java" (1818); Walden, Tr. Zool. Soc. viii. 

 p. 59. 



" Jambusan, $, iris brown." 



In almost perfect plumage. Identical with Javan, Malaccan, 

 and Celebean examples. 



Penthoceryx pravatus (Horsf.), Tr. Linn. Soc. xiii. p. 179, 

 "Java" (1820). 



Cuculus 7'ufovitiafus, Drapiez, Diet. Class. d'Hist. Nat. iv. 

 p. 568, "Java" (1823). 



Cuculus fasciolatus, Sal. Miiller, Verb. Nat. Gesch. Nederl. 

 Ov. Bez. Land- en Volk. p. 177, note, sp. 4, "Java and Su- 

 matra" (1839-44). 



" Sabu, 2 , iris warm brown, legs pale bluish lead ; Busan, $ , 

 iris yellow, October." 



The species which inhabits Malacca, Sumatra, Java, and 

 Borneo is considerably smaller than P. sonnerati (Lath.) of 

 India and Ceylon. 



Longitude 



Penthocen/x sonnei'citi 







Penthoceryx jjravatus 





it 

 ») 



6 

 2 

 2 



Alse. 



4-88 

 4-75 

 4-75 

 4-88 

 4-25 



4-25 



3-88 



40 



40 



Caudae. 

 5-12 

 4-88 

 4-62 

 50 

 4-37 

 4-50 

 4-0 

 40 

 4-12 



Caudeish. 



Ceylou. 



Malabar. 



Maunbhooui. 



Java. 



Malacca. 



Sarawak. 



Busan. 



Sabu. 



