592 
U. S. P. E. R. EXP. AND SURVEYS ZOOLOGY — GENERAL REPORT. 
PSILOKHINUS MOKIO, Gray. 
Pica mono, Wagi.er, Isis, 1829, vii, 751.— Id. Isis, 1831, 527.— Voyage de la Favorite, V, 1839, 54. Said to have 
been killed at San Francisco, Cal. by Botta. 
Psilorhinus morie, Gray, List, genera, 1841, 51.— Bonap. Consp. 1850, 381. — Cab. Mns. Hein. 1851, 226. 
" Pieafuliginosa, Lesson, Traite d'Orn. 1831, 333." 
Psilorhinus mexicanus, Rupfell, Mus. Senck. 1837 ; pi. xi, f. 2. 
Sp. Ch. — Tail much graduated ; the lateral feathers about two inches shortest. Second quill equal to the secondaries; third 
and fourth longest. General color dark smoky brown, becoming almost black on the head ; the breast brownish gray ; nearly 
white about the anus ; under tail coverts t ; nged with brown ; the exposed portion of the tail with a decided gloss of blue ; bill 
and feet, in some specimens, yellow, in others black. Length, 16. CO inches ; wing, 8.00 ; tail, 8.25 ; tarsus, 1.80. 
Ilah. — Rio Grande valley of Texas southward. 
The difference in the color of the bill appears to be independent of sex. The feet of the 
yellow-billed birds are not of the same pure yellow. 
The Psilorhinus mexicanus of Kiippel is described as having white tips to the tail feathers ; 
of these there is no trace in the adult specimens, male and female, before me. He speaks of a 
supposed young bird sent from Tamaulipas, by Lindheimer, as being without these white tips. 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
Whence obtained. 
Orig, 
No. 
Length. 
Stretch 
of wings. 
Wing. 
Remarks. 
4116 
4117 
4118 
4114 
3 
Q 
Q 
Boquillo, Mex 
do.. 
....do 
140 
109 
98 
16.75 
24. 00 
7.75 
China, N. Leon, Mex 
....do 
15. 25 
22. 00 
7. 25 
Eye black, bill slate, feet slate. 
The following species of jay have been improperly assigned a place in the fauna of the United 
States. 
1. Calocitta colliaei, Gray. 
Pica colliaei, Vigors, Zool. Jour. IV, Jan. 1829, 353.— Ib. Zool. of Blossom, 1839, 22 ; 
pi. vi. 
Corvus bullockii, Aud. Orn. Biog. I, 1831, 483 ; pi. xcvi. Not Pica bullochii of Wagler. 
Pica bullockii, Aud. Syn. 1839, 152.— Ib. Birds Am IV, 1842, 105 ; pi. 229. 
This species belongs to the west coast of Mexico, and is erroneously credited to California and 
Oregon. 
2. Cyanocorax geopfrqyi, Bonap. 
Cyanocorax geoffroyi, Bon. Rev. et Mag. Zool. II, 1850, 564. California. Not of United 
States. 
3. ClSSILOPHA SANBLASIANA, Bon. 
Garrulus sanblasianus , Lapr. Mag. Zool. 1842, Ois. tab. xxviii. Voyage de la Venus. 
Cissilopha sanblasiana, Bon. Consp. 1850, 380. Belongs to San Bias, Mexico. 
4. CVANOCITTA BEECIIEYII, BON. 
Pica beecheyii, Vigors, Zool. Jour. IV, Jan. 1829, 352.— Ib. Zool. of Blossom, 1839, 22; 
pi. vi.— Voyagede la Favorite, V, 1839, 52 ; pi. xx. Said to have 
been collected in California by Botta. 
Oyanocitla beachii, Bon. Consp. 1850, 378. Collected on the west coast of Mexico. 
(Montereale.) 
