144 



298d. leracidea berigora kempi Math., Bds. Cape York, 

 Aiistr., v., p. 277 (1916). [Cape York]. North 



Kemp's Brown Hawk. Australia. 



Above dark rusty brown ; cheeks black. 



298e. leracidea berigora melvilleiisis Math., Aus- Northern 



tral. Av., Rec, i., p. 34 (1912). [Melville Territory, 



Is.] N.W. 



Northern Brown Hawk. Australia. 



Very pale race. 

 298f. leracidea berigora centralis Math., Bds. Central 



Austr., v., p. 277 (1916). [Central Aus- Australia. 



tralia.] 



Central Australian Brown Hawk. 



[Not seen.] 

 298g. leracidea novcB-guinecB K.^.M.eyer, ].¥.0., S.E. New 

 1894, p. 89. [S.E. New Guinea.] Guinea. 



New Guinea Brown Hawk. 



Gen. LXXXVI. CERCHNEIS Boie (1826).= 



With the general characters of Falco, but wings 

 not so long and 3rd primary nearly equal to 2nd ; 

 outer and inner toes equal. (Plumage always 

 rufescent ; sexes usually dissimilar). 



Size small; wing S 9.10-9.75, tail 6.25- 

 6.50 ; wing $ 9.65-10.25, tail 6.50-6.75 in. ; 

 (^ above brick-red, with a few arrow-head 

 black markings, especially on the inner 

 secondaries ; head and neck blue-grey, 



* Against the opinion of many systematists I feel it desirable to separate 

 this group from Falco, not only because they form a natural group, distinctive 

 in colouration, but also because this group contains within it certain groups of 

 species, closely connected, but having many ramifying forms, which it .seems 

 undesirable to treat of under Falcx). 



