50 Aves. 
AYES. 
Certhia mexicana albescens, n. subsp,, Ciudad Durango, N.W. Mexico ; 
H. v. Berlepscii, Auk, 1888, p. 450. 
Salpomis emini [cf, Zool. Rec. xxi, Aves , p. 39] = S. salvadorii ; G. E. 
Siielley, P. Z. S. 1888, p. 37. 
ClNCLIDiE. 
Cinclus schulzi figured ; P. L. Sclater & W. H. Hudson, Argent. 
Orn, i, p. 11, pi. ii. 
Corvids. 
Tschusi zu Sciimidiioffen, Y. v. Die Yerbreitung und der Zug des 
Tannenhehers ( Nucifraga caryocatactes, L.), mit besonderer Beriick- 
sichtigung seines Auftretens im Herbste und Winter 1885 und 
Bemerkungen uber seine beiden Varietaten : Nuc. car . pachyrhynchus 
und leptorhynchus , R. Bias. Yerh. z.-b. Wien, 1888, pp. 407-506, 
pi. xi [beaks]. 
Corvidce , winter roosting; C. L. Edwards, Am. J. Psychol. 1888, 
pp. 436-459 [and Zool. 1888, pp. 292-297, 334-345]. 
Cissa jefferyi, n. sp. [£ $ ], Kina Balu Mt., N. Borneo ; R. B. Siiarfe 
[J. Whitehead], Ibis, 1888, pp. 383 & 384. 
Corvus corax sinuatus, a firm osseous plate round the entrance of the 
optic nerve ; R. W. Siiufeldt, Auk, 1888, p. 329. 
Nucifraga caryocatactes , the Arctic form discussed ; H. Seebohm, Ibis, 
1888, pp. 236-241. [See Stejneger, L., and cf. Zool. Rec. xxiv, Aves, 
pp. 43 & 44.] 
Perisoreus canadensis fumifrons figured ; E. W. Nelson, Rep. Nat. Hist. 
Alaska, p. 164, pi. xi. 
Diceeid^. 
Prionochilus plateni, n. sp. [£], Palawan I. ; W. Blasius, Braunschw. 
Anz. 1888, No. 37 (Feb. 12th), p. 335, and Ornis, 1888, p. 313. P. 
johannce, n. sp. [£], near P. xanthopygius, Pal&wan I. ; R. B. Sharpe, 
Ibis, 1888, pp. 201 & 202, pi. iv, fig. 1. W. Blasius says they are the 
same, and claims priority ; Ibis, 1888, p. 372. 
Fringillidji. 
The family generally, see Sharpe, R. B. 
Siiufeldt, R. W. The Osteology of Eabia melanocephala , with com- 
parative Notes upon the Skeletons of certain other Conirostral 
Birds, and of Tanagers. Auk, 1888, pp. 438-444, cut. 
Skulls and sterna of the above species and of Pipilo m. megalonyx are 
compared with each other and with those of Tanagers, with a view to 
determine their relationships generally. 
