I96 M. OGA WA 



Young specimens 



No. 



Locality. 



Date. 



Sex. 



Culmen. 



Height 

 of bill at 

 nostrils. 



Wing. 



Tail. 



Tarsus. 



O. C. g$2 



Jamami 



July 22. 





67 mm. 



16 mm. 



313mm. 



1 96 mm. 



59 mm. 



„ .. 953 









/O >. 





315 >. 



I90 „ 



60 „ 



„ 78 



Miyakoshima ... 



July 7- 





64 ,. 



'5 - 



308 „ 



!95 ,. 



56 







In average : 



67 mm. 



15 6 mm. 



312 mm 



193.6 mm. 



58.3 mm. 



37. Corvus macrorhynchus osai s ^ li8p - N0V - 



(Osagarasu). 



The present collection has revealed the presence in the Loochoo 

 Islands of a small race of C. macrorhynchus, smaller in a considerable 

 degree than the size usually ascribed to C in levaillanti and which I 

 have called by the above name. Of this new race or subspecies fifteen 

 specimens in all have been collected in Okinawashima, Ishigaki and 

 Iriomote. Two of them are young-of-the year ; the rest are adults with 

 well developed plumage. 



In the general color and gloss of plumage, in the general shape of bill 

 and in the feathers having dark-gray base, the subspecies closely agrees 

 with C. m. levaillanti. It may well be considered as a diminutive form of 

 the latter, with which it seems however to be connected by birds of inter- 

 mediate dimensions. The size may be said to be about equal to that of C. 

 pastinator and, to judge from the length of wing, to be only about § the 

 size of the typical Malayan C. macrorhynchus or of C. m. japonensis. An 

 idea of the size in relation to that of C. m. levaillanti may be obtained by 

 comparing the measurements given under No 36 with those embodied 

 in the following list of the specimens, all which I include under C 

 m osai. 



