62 Avea. 
XVIT. Aves. 
[1917] 
Corvus cor one on the identity of 
Linnaeus’ species, Hellmayr 264. — G. 
c. interpositus subsp. n. Japan, Laub- 
mann Miinclien Verhandl. Orn. Ges. 
13 p. 201. 
Coloeus monedula Soemmering ii 
(Fiscli.) antedates G. m. collaris, Hell- 
mayr 264 p. 184. 
Nucifraga caryocatactes , migration 
movements at Rossitten, Prussia, 
Thienemann 640. — N. Columbiana nest- 
ing habits in Colorado, Bradbury 79. 
Pica pica hudsonia field-notes, Dice 
158. 
Gyanopica cyanus interposila subsp. n. 
Corea and Manchuria, Hartert Nov. 
Zool. 24 p. 493. 
Celalyca Gray 1870 antedates Laletris 
Reich w. 1906 for C. lanceolatus, Hell- 
mayr 265 p. 198. 
[Grades] Perisoreus obscurus rathbuni 
subsp. n. N.W. Washington, Ober- 
holser Proc. Biol. Soc. Wash. 30 
p. 185. 
Aphelocoma cyanotis and A. Cali- 
fornia, revision of subspecies, Ober- 
holser 435. 
Gyanolyca viridicyanea cuzcoensis 
subsp. n. eastern slopes of Peruvian 
Andes, Sclater Ibis 1917 p. 465 
pi. viii. — G. v. cyanolaema subsp. n. 
Peru, Hellmayr Munchen Verhandl. 
Orn. Ges. 13 p. 107. 
