110 U. 8. P. R, R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
List of specimens. 
Catal. Sex and Locality. When collect- | Whence obtained. |Orig’]} Collected by— | Length.| Extent. | Wing: Remarks. 
No. | age. ed. | No. 
| 
865 | 3 Carlisle, Pennsylvania..| Nov. 22,1842 S. F. Baird........ 
813 PhO wisseeli sis cies Cet. 19,1842 |. dozeressiesiec 
2362 | dOsiscsvseise eset July - 4,1845 |....... dOsccdaneee 
2802 Location UNKNOWN, ....|.e..eeeeceeees | J.J. Audubon 
2801 ¢ CO Meleretsislefeots sil lctsicole(sieie(cisis sie Nenielete cere dO. cesieciee sia 
6528) Gd | MmdianKey,Fla.........,| — —,1857 |G. Wurdemann.... 
4924 | sees eees Amelialsland. {Fla ssisrs\s|esvclssc=-iclecie's jteeeees dOsee scenes: 
TO50 weve ewes St. Louis, Mo......00.- May 13,1857 | Lieut. Bryan....... 
6118 Q Ft. Leavenworth,K. T..| Oct. 21,1854 | Lieut. Couch...... 
4623 3 St. Josephs, Mo........ April 22, 1856 | Lieut. Warren ..... 7 =| Lieut. Warren..e.jecceoes 
8290 |eeee sees Independence, Mo..... May 26,1856 | W. M. Magraw ....| 3 | Dr. J.G. Cooper.. 
8289 3 eoescece dO. cevececvcccc|vevee AOsevevelevceere GOsvecrseses| 2 |eccceees Oe cnelaaisis 
4624 fof Nemaha Reserve,N. T. Dr. Hayden...... 
5BBA |e eee wees Fort Riley; K.'T...:,.2.: Mr. De Vesey....|ee 
5885 | eelGO viet 
5620 donee 
4621 Platte river, N. T 
4622 Ovivecesisieiaceles 
GLI9 |ecec ee Rio Grande, New Mex.. 
6120) ceiseieves Near 32° latitude. .....- 
CENTURUS FLAVIVENTRIS, Swainson. 
Yellow-bellied Woodpecker. 
Centurus flaviventris, Swainson, Anim. in Menag., 1838, (23 centenaries) 354. 
Centurus elegans, Lawrence, Ann. N. Y. Lyc. V, May, 1851, 116. 
Centurus santacruzii, Lawrence, Ann. N. Y. Lye. V, 1851, 123, (not of Bonap.) 
Sp. Cu.—Fourth and fifth quills nearly equal ; third a little shorter ; longer than the fourth. Back banded transversely with 
black and white ; rump and upper tail coverts pure white. Crown with a sub-quadrate spot of crimson, about half an inch wide 
and long, and separated from the gamboge yellow at the base of the bill by dirty white ; from the orbit and occiput by brownish 
ash. WNape half way round the neck orange yellow. Under part generally, and sides of head dirty white. Middle of belly 
gamboge yellow. Tail feathers all entirely black, except the outer, which has some obscure bars of white. Length about 9} 
. inches ; wing 5. 
Female without the red of the crown. 
Hab.—Rio Grande region of the United States, south into Mexico. 
This species is nearly as large as the C. carolinus, although differing appreciably in the color 
of the crown and nape, the yellow nape, yellow belly, immaculate inner tail feathers, &c. The 
bands on the back are of the same size and general character as in C. carolinus; the back has, 
however, a brownish yellow wash. The orange yellow of the nape is about half an inch long. 
Along the base of the upper mandible the color is gamboge yellow. The under tail coverts are 
white with V shaped marks of black. ; 
In the young male the occiput as well as nape are gamboge yellow ; the feathers of the 
under parts faintly streaked with black. The iris is red. 
Specimens of a Lower California or Mexican Centurus, in the Smithsonian collection, at one 
time supposed to be C. jlaviventris, have the wing considerably longer, (54 inches) ; the fourth 
and fifth quills longest ; the third but little less. The white transverse marks on the back are 
much narrower. The entire crown is crimson red, bordered laterally and behind with orange 
yellow ; the white band separating the red of the crown from the yellow of the bill is purer 
