530 PROCEEDINGS OF THE NATIONAL MVSEVM. vol. 45. 



fine male was said to have been brought into Tapucha during the 

 time of our stay in the vicinity, but we failed to secure the specimen. 

 I believe ibex are much more common and generally distributed in 

 the mountains between Altaiskoe and Kosh-Agatch than is generally 

 known to the sportsmen who have visited the Altai. This form 

 is probably confined to the wooded country north of the Chuisaya 

 Steppe, on the Siberian side of the ranges, where it inhabits the 

 numerous timberline mountains. Kastschenko reports several speci- 

 mens of the ibex from the Katoun Mountains and Buchtarme Kiver, 

 southwest of Ongudai and Ust-Inya. In Kosh-Agatch we purchased 

 the skull and horns of a fuie old male, killed on the Baskkaous River, 

 which empties into Lake Teletzkoi. This specimen is virtually a 

 topotype of fasciata. The horns are long, gracefully curved, and 

 wide spreading, and the knobs are small and low. This skull, No. 

 175188, U.S.N.M., measures: Condylobasal length, 270 mm.; greatest 

 breadth, 149; upper tooth row, alveoli, 66; length of horns over 

 curve, 1013 and 1045; circumference at basal knob, 240; distance 

 between horn tips, 810. 



A pet ibex, a young male, which, in company with a young domestic 

 goat of about the same age, enjoyed the entire freedom of Kosh- 

 Agatch, made friends with us at once on our arrival in town. It fol- 

 lowed us into the buildmg given us as camp quarters, and was with 

 considerable difficulty induced to leave, and then only after it had 

 inspected the whole apartments and bounced from the bunk to the 

 table, window sills, and on to the cement stove, or oven. 



CAPRA SIBIRICA HAGENBECKI Noack. 



1903. Capra sibirica var. hagenbechi Noack, Zool. Anz., vol. 26, p. 381. 

 1907. Capra sibirica hagenbecki Lorenz, Denksckr. Kais. Acad. Wiss., vol. 80, 

 p. 89. 



This ibex, originally described from some point near Kobdo, 

 Mongolia, is common in favorable places on both the Siberian and 

 Mongolian slopes of the border ranges. Our two specimens, killed 

 by Lyman on the Siberian side of Tarkuta Pass (about 35 miles west 

 of Tchegan-Burgazi Pass), July 23 and 24, are both adult males, and 

 agree in every particular with the description of TiagenhecJci. It is, 

 indeed, likely that the original specimens, on which the form was 

 based, came from much nearer our locality than the town of Kobdo, 

 and the specimens may be assumed to be typical. The headwaters 

 of the Suok River, one of the chief sources of the Kobdo, are not far 

 from Tarkuta Pass. 



This is one of the forms without the light-colored "saddle." Our 

 skins, in the short summer coat, have the upper parts of uniform fawn 

 color, blending to almost pure white on the belly. There is a faint 

 narrow dorsal stripe from head to tail. Both specimens have the 

 well-developed callosities on the knee joints, as described of this race, 



